You should refer to our consolidated financial statements and the notes thereto as you read this section.



This section contains "forward-looking" statements, as defined in the Private
Securities Litigation Reform Act of 1995, that are based on our current
expectations, estimates and projections about future events and financial trends
affecting the financial condition and operations of our business.
Forward-looking statements can be identified by the use of words such as "may,"
"will," "should," "could," "believe," "anticipate," "expect," "estimate," "plan"
or other comparable terminology. Forward-looking statements are inherently
subject to risks and uncertainties, many of which we cannot predict with
accuracy and some of which we might not even anticipate. Although we believe
that the expectations, estimates and projections reflected in such
forward-looking statements are based on reasonable assumptions at the time made,
we can give no assurance that these expectations, estimates and projections will
be achieved. Future events and actual results may differ materially from those
discussed in the forward-looking statements. Important factors that may affect
these expectations, estimates and projections include, but are not limited to:

•general economic and business conditions, which will, among other things,
affect office property and data center demand and rents, tenant
creditworthiness, interest rates, financing availability, construction costs and
property values;
•adverse changes in the real estate markets, including, among other things,
increased competition with other companies;
•governmental actions and initiatives, including risks associated with the
impact of a prolonged government shutdown or budgetary reductions or impasses,
such as a reduction in rental revenues, non-renewal of leases and/or reduced or
delayed demand for additional space by our strategic customers;
•our ability to borrow on favorable terms;
•risks of property acquisition and development activities, including, among
other things, risks that development projects may not be completed on schedule,
that tenants may not take occupancy or pay rent or that development or operating
costs may be greater than anticipated;
•risks of investing through joint venture structures, including risks that our
joint venture partners may not fulfill their financial obligations as investors
or may take actions that are inconsistent with our objectives;
•changes in our plans for properties or views of market economic conditions or
failure to obtain development rights, either of which could result in
recognition of significant impairment losses;
•risks and uncertainties regarding the impact of the COVID-19 pandemic, and
similar pandemics, along with restrictive measures instituted to prevent spread,
on our business, the real estate industry and national, regional and local
economic conditions;
•our ability to satisfy and operate effectively under Federal income tax rules
relating to real estate investment trusts and partnerships;
•possible adverse changes in tax laws;
•the dilutive effects of issuing additional common shares;
•our ability to achieve projected results;
•security breaches relating to cyber attacks, cyber intrusions or other factors;
and
•environmental requirements.

We undertake no obligation to publicly update or supplement forward-looking statements.

Overview

Our 2021 was highlighted by:



•strong leasing results, including our:
•fourth consecutive year with development leasing in excess of one million
square feet; and
•seventh consecutive year with a portfolio-wide tenant retention rate in excess
of 70%;
•the refinancing of most of our debt, resulting in new unsecured debt issuances
with lengthened and staggered future maturity timing and lower interest rates;
•capital raised from selling interests in data center shells through a
newly-formed joint venture;
•our entry into a contract to sell our largest real estate investment and enable
us to exit the wholesale data center business; and
•operating results that were not significantly affected by the COVID-19
pandemic.

We leased 3.9 million square feet in 2021, representing our fifth consecutive year with leasing in excess of 3.0 million. This leasing included:

•1.2 million square feet of development leasing in Defense/IT Locations, including 727,000 square feet in our Redstone Arsenal sub-segment;


                                       23

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•2.1 million square feet of renewal leasing, resulting in a portfolio-wide
tenant retention rate of 74.2%. Strong tenant retention is key to our asset
management strategy in order to maximize revenue (by avoiding downtime) and
minimize leasing capital; and
•616,000 square feet of vacant space leasing, most of which was concentrated in
the Fort Meade/BW Corridor sub-segment.

We believe that our 2021 leasing benefited from a continued:



•healthy defense spending environment, with bipartisan support for funding our
national defense. We believe that successive increases in defense spending since
2016, including, most recently, in the National Defense Authorization Act for
Fiscal Year 2022, have enhanced the USG and defense contractor tenants' ability
to invest in facility planning. This environment has helped fuel leasing demand,
as has continued prioritization of spending allocations towards technology and
innovation programs benefiting our Defense/IT Locations, including cyber, space,
unmanned systems and artificial intelligence; and
•demand for data center shells. Our leasing included two new data center shells
in Northern Virginia, the largest data center market in the world,
and represented further expansion of our relationship with an existing customer.
As of year end, we held land that would accommodate an additional 913,000 square
feet in future data center shell development.

We believe these conditions bolstered tenant confidence levels for entering into
long-term lease commitments, as evidenced by weighted average lease terms on our
2021 leasing of: 13.4 years on development leasing; 5.4 years on renewal
leasing; and 8.2 years on vacant space leasing. Future leasing demand for our
Defense/IT Locations could be delayed or diminish if this bipartisan support for
funding national defense does not continue or if appropriations legislation to
fund approved defense budgets face extended delays (including the USG's 2022
fiscal year defense budget, which was authorized but was awaiting appropriations
as of the date of this filing).

In 2021, we placed into service 766,000 square feet in eight newly-developed
properties that were 87% leased as of December 31, 2021. These properties were
predominantly Defense/IT Locations, the largest of which was a 348,000 square
foot, 100% leased property in our NoVA Defense/IT sub-segment. We ended the year
with 1.7 million square feet in properties under development that were 96%
leased in aggregate, most of which were in our Redstone Arsenal and Data Center
Shells sub-segments. Most of these properties were 100% leased and all but two
were more than 80% leased. For further disclosure regarding our development
underway as of year end, please refer to Item 2 of this Annual Report on Form
10-K.

We ended 2021 with lower leased and occupied percentages for our office and data
center shell portfolio relative to December 31, 2020 (which was our highest year
end portfolio-wide occupancy since 2001) due primarily to a property in our
Redstone Arsenal sub-segment vacated by its tenant in late 2021 and
newly-developed vacant space placed in service (most of which was in a Regional
Office property). We ended 2021 with our office and data center shell portfolio
94.2% leased (compared to 94.8% as of December 31, 2020) while our Same
Properties were 93.4% leased (compared to 93.8% as of December 31, 2020). Our
year end portfolio-wide office and data center shell occupancy was 92.4%
(compared to 94.1% as of December 31, 2020) and Same Properties occupancy was
91.3% (compared to 92.9% as of December 31, 2020).

As of December 31, 2021, we had scheduled lease expirations for 1.6 million
square feet in 2022, representing 8.2% of our total occupied square feet and
9.4% of our total annualized rental revenue from office and data center shells,
including:

•1.3 million square feet in our Defense/IT Locations segment, most of which we
believe is mission-critical space to the tenants and therefore expect most of
this space to be renewed; and
•327,000 square feet in our Regional Office segment, which included a 140,000
square foot known non-renewal for 2022, and which we believe otherwise carries
significantly higher risk of non-renewal than our Defense/IT Locations space.

Please refer to the section below entitled "Occupancy and Leasing" for additional related disclosure.

In 2021, we refinanced most of our debt by issuing $1.4 billion in unsecured senior notes, including:



•$600.0 million of 2.75% Notes due 2031 issued at an initial offering price of
98.95% of their face value on March 11, 2021 for proceeds, after deducting
underwriting discounts but before other offering expenses, of $589.8 million. We
applied the proceeds from this issuance to purchase or redeem $350.0 million of
3.60% Senior Notes due 2023 and $250.0 million of 5.25% Senior Notes due 2024
for $373.1 million and $282.4 million, respectively, plus accrued interest. In
connection with these purchases and redemptions, we recognized a loss on early
extinguishment of debt in 2021 of $58.4 million. We used borrowings under our
Revolving Credit Facility to fund the net cash outlay resulting from this
refinancing;
•$400.0 million of 2.00% Notes due 2029 at an initial offering price of 99.97%
of their face value on August 11, 2021 for proceeds, after deducting
underwriting discounts but before other offering expenses, of $397.4 million. We
used $100.0 million of the proceeds from this issuance to repay a portion of our
term loan facility, $89.0 million to pay off a construction loan and most of the
remaining proceeds to repay borrowings under our Revolving Credit Facility; and
•$400.0 million of 2.90% Notes due 2033 at an initial offering price of 99.53%
of their face value on November 17, 2021 for proceeds, after deducting
underwriting discounts but before other offering expenses, of $395.4 million. We
used $336.4 million of the proceeds from this issuance to redeem $300.0 million
of 5.00% Senior Notes due 2025 and $52.4 million to
                                       24

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pay off a fixed rate mortgage loan. In connection with these debt repayments, we recognized a loss on early extinguishment of debt in 2021 of $41.1 million.



As a result, from September 2020 (when we issued $400 million unsecured senior
notes) to year end 2021, we issued $1.8 billion in unsecured senior notes, which
enabled us to refinance $1.6 billion in debt, or 81% of our outstanding debt as
of June 30, 2020, at weighted average interest rates on the newly-issued debt
that were 1.1% lower than the weighted average interest rates on the debt we
repaid. This also enabled us to lengthen and stagger the timing of our future
debt maturities.

As in recent years, we raised equity in 2021 through the sale of interests in
single tenant data center shell properties with the sale of a 90% interest in
two such properties based on an aggregate property value of $118.8 million and
retained a 10% interest in the properties through B RE COPT DC JV III LLC, a
newly-formed joint venture. Our partner in the joint venture acquired the 90%
interest from us for $106.9 million, the proceeds from which we used to repay
borrowings under our Revolving Credit Facility. We recognized a gain of
$40.2 million on this sale. Since 2019, we raised $558 million from the sale of
interests in single tenant data center shell properties.

We also in 2021 sold a property that was previously removed from service from
our data center shells sub-segment for $30.0 million, the proceeds from which we
used to repay borrowings under our Revolving Credit Facility. We recognized a
gain of $25.9 million on this sale.

In addition, we entered into a contract in December 2021 to sell 9651 Hornbaker
Road in Manassas, Virginia, our largest real estate investment (in terms of book
value) and only property in our Wholesale Data Center reportable segment, for
$222.5 million. Our entry into this contract positioned us to exit the wholesale
data center business and redeploy the resulting proceeds towards funding our
Defense/IT Locations development pipeline. We completed this sale on January 25,
2022, resulting in a gain on sale of approximately $29 million, and used
substantially all of the proceeds to pay down debt in order to free up borrowing
capacity to fund future development.

Due to the collective effect of our 2021 activity, we ended the year with:



•approximately $190 million more debt relative to the end of 2020 that we were
positioned to pay down by $216 million in January 2022 using the proceeds from
our wholesale data center sale; and
•$724 million in borrowing capacity available under our Revolving Credit
Facility to fund our investing and financing activities (which capacity was
subsequently increased to $800 million in January 2022 following our pay down of
the facility from our wholesale data center sale proceeds).

Net income in 2021 was $21.3 million lower than in 2020 due primarily to:



•lower income due to a $93.3 million increase in loss on early extinguishment of
debt due to the extinguishments discussed above and $29.4 million gain on sale
of investment in an unconsolidated joint venture that occurred in 2020; offset
in part by
•higher income due to a $53.2 million loss on interest rate derivatives
recognized in 2020 and $35.4 million increase in gain from sales of real estate
due to the gains from the sales discussed above exceeding our gains in 2020.

Net operating income ("NOI") from real estate operations, our segment performance measure discussed further below, increased $19.0 million from 2020 to 2021 due primarily to:



•a $27.6 million increase from developed and redeveloped properties placed into
service; offset in part by
•a net decrease of $10.5 million from dispositions due to our sales of property
interests in 2020 and 2021.

NOI from our Same Properties only changed marginally, increasing $1.8 million,
or 0.6%, from 2020 to 2021. Our results of operations for these periods were not
significantly affected by the COVID-19 pandemic. Additional disclosure comparing
our 2021 and 2020 results of operations is provided below.

We discuss significant factors contributing to changes in our net income between
2021 and 2020 in the section below entitled "Results of Operations." In
addition, the section below entitled "Liquidity and Capital Resources" includes
discussions of, among other things:

•how we expect to generate cash for short and long-term capital needs; and •our commitments and contingencies.



We refer to the measures "annualized rental revenue" and "tenant retention rate"
in various sections of the Management's Discussion and Analysis of Financial
Condition and Results of Operations section of this Annual Report on Form 10-K.
Annualized rental revenue is a measure that we use to evaluate the source of our
rental revenue as of a point in time. It is
                                       25

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computed by multiplying by 12 the sum of monthly contractual base rents and
estimated monthly expense reimbursements under active leases as of a point in
time (ignoring free rent then in effect and rent associated with tenant funded
landlord assets). Our computation of annualized rental revenue excludes the
effect of lease incentives. We consider annualized rental revenue to be a useful
measure for analyzing revenue sources because, since it is point-in-time based,
it does not contain increases and decreases in revenue associated with periods
in which lease terms were not in effect; historical revenue under generally
accepted accounting principles in the United States of America ("GAAP") does
contain such fluctuations. We find the measure particularly useful for leasing,
tenant, segment and industry analysis. Tenant retention rate is a measure we use
that represents the percentage of square feet renewed in a period relative to
the total square feet scheduled to expire in that period; we include the effect
of early renewals in this measure.

We also refer to the measures "cash rents", "straight-line rents", and
"committed costs" in the "Occupancy and Leasing" section of the Management's
Discussion and Analysis of Financial Condition and Results of Operations section
of this Annual Report on Form 10-K. Cash rents include monthly contractual base
rent (ignoring rent abatements and rent associated with tenant funded landlord
assets) multiplied by 12, plus estimated annualized expense reimbursements (as
of lease commencement for new or renewed leases or as of lease expiration for
expiring leases). Straight-line rents includes annual minimum rents, net of
abatements and lease incentives and excluding rent associated with tenant funded
landlord assets, on a straight-line basis over the term of the lease, and
estimated annual expense reimbursements (as of lease commencement for new or
renewed leases or as of lease expiration for expiring leases). We believe that
cash rents and straight-line rents are useful measures for evaluating the rental
rates of our leasing activity, including changes in such rates relative to rates
that may have been previously in place, with cash rents serving as a measure to
evaluate rents at the time rent payments commence, and straight-line rents
serving as a measure to evaluate rents over lease terms. Committed costs
includes tenant improvement allowances (excluding tenant funded landlord
assets), leasing commissions and estimated turn key costs and excludes lease
incentives; we believe this is a useful measure for evaluating our costs
associated with obtaining new leases.

With regard to our operating portfolio square footage, occupancy and leasing
statistics included below and elsewhere in this Annual Report on Form 10-K,
amounts disclosed include total information pertaining to properties owned
through unconsolidated real estate joint ventures except for amounts reported
for annualized rental revenue, which represent the portion attributable to our
ownership interest.

Effects of COVID-19

As of the date of this filing, spread of COVID-19 continues world- and
nation-wide. Since the beginning of 2021, the United States has significantly
increased the proportion of the population that has received COVID-19 vaccines,
and there is increased confidence that spread of COVID-19 can, to a large
extent, be contained through vaccinations and wearing masks indoors in public.
As a result, most restrictive measures previously instituted to control spread
have been gradually lifted and an increased proportion of the population has
resumed a return to normal activities. However, there continues to be
significant uncertainty regarding the duration and extent of the pandemic due to
factors such as the continuing spread of the virus, the pace of world- and
nation-wide vaccination efforts, the continued emergence of new variants of the
virus and the efficacy of vaccines against such variants.

While the pandemic has adversely impacted the operations of much of the
commercial real estate industry, we believe that we have been less susceptible
to such impact due to our portfolio's significant concentration in Defense/IT
Locations. These properties are primarily occupied by the USG and contractor
tenants engaged in what we believe are high-priority security, defense and IT
missions. As a result, most of these properties were designated as "essential
businesses," and therefore exempt from many of the restrictions that otherwise
have affected much of the commercial real estate industry. Furthermore, since
the tenants in these properties are mostly the USG, or contractors of the USG
who continue to be compensated by the USG for their services, we believe that
their ability, and willingness, to fulfill their lease obligations have not been
disrupted. Our Defense/IT Locations do include tenants serving as amenities to
business parks housing our properties (such as restaurant, retail and personal
service providers); while these tenants' operations have been significantly
disrupted by COVID-19, our annualized rental revenue from these tenants is not
significant. As a result, our results of operations were not significantly
affected by the pandemic. For the year ended December 31, 2021, our:

•Same Properties NOI from real estate operations increased marginally relative
to 2020, and was only minimally affected by the pandemic-related effect of lower
provisions for collectability losses in 2021 relative to 2020; and
•lease revenue collections were not significantly affected by the pandemic.
After agreeing to deferred payment arrangements for approximately $2.6 million
in lease receivables last year (most of which was repaid by June 30, 2021), we
did not agree to significant additional arrangements in 2021.

While we do not currently expect that the pandemic will significantly affect our
future results of operations, financial condition or cash flows, we believe that
the impact will be dependent on future developments, including the duration and
extent of the pandemic, the prevalence, strength and duration of restrictive
measures and the resulting effects on our tenants, potential future tenants, the
commercial real estate industry and the broader economy, all of which are
uncertain and difficult to predict. Nevertheless, we believe at this time that
there is more inherent risk associated with the operations of our Regional
Office properties than our Defense/IT Locations.
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While our development leasing and ability to renew leases scheduled to expire
have not been significantly affected by the pandemic, we do believe that the
impact of the restrictive measures and the economic uncertainty caused by the
pandemic impacted our timing and volume of vacant space leasing, and may
continue to do so in the future, particularly for our Regional Office
properties.

The pandemic enhances the risk of us being able to stay on pace to complete
development and begin operations on schedule due to the potential for delays
from: jurisdictional permitting and inspections; factories' ability to provide
materials; and possible labor shortages. These types of issues have not
significantly affected us to date but could in the future, depending on pandemic
related developments.

Critical Accounting Estimates

Our consolidated financial statements are prepared in accordance with GAAP,
which require us to make certain estimates and assumptions. A summary of our
significant accounting policies is provided in Note 2 to our consolidated
financial statements. The following section is a summary of certain aspects of
those accounting policies involving estimates or assumptions that (1) involve a
significant level of estimation uncertainty and (2) have had or are reasonably
likely to have a material impact on our financial condition or results of
operations. It is possible that the use of different reasonable estimates or
assumptions could result in materially different amounts being reported in our
consolidated financial statements. While reviewing this section, refer to Note 2
to our consolidated financial statements, including terms defined therein.

Assessment of Lease Term as Lessor



As discussed above, a significant portion of our portfolio is leased to the USG,
and the majority of those leases consist of a series of one-year renewal options
(with defined rent escalations upon renewal), and/or provide for early
termination rights. Applicable accounting guidance requires us to recognize
minimum rental payments on operating leases, net of rent abatements, on a
straight-line basis over the term of each lease. We estimate a tenant's lease
term at the lease commencement date and do not subsequently reassess such term
unless the lease is modified. When estimating a tenant's lease term, we use
judgment in contemplating the significance of: any penalties a tenant may incur
should it choose not to exercise any existing options to extend the lease or
exercise any existing options to terminate the lease; and economic incentives to
the tenant based on any existing contract, asset, entity or market-based factors
associated with the lease. Factors we consider in making this assessment include
the uniqueness of the purpose or location of the property, the availability of a
comparable replacement property, the relative importance or significance of the
property to the continuation of the lessee's line of business and the existence
of tenant leasehold improvements or other assets whose value would be impaired
by the tenant vacating or discontinuing use of the leased property. For most of
our leases with the USG, our estimates of lease term conclude that exercise of
existing renewal options, or continuation of such leases without exercising
early termination rights, is reasonably certain as it relates to the expected
lease end date. As a result, our recognition of minimum rents on these leases
includes the effect of annual rent escalations over our estimate of the lease
term (including on one-year renewal options) and our depreciation and
amortization of costs incurred on these leases is recognized over the lease
term. An over-estimate of the term of these leases by us could result in the
write-off of any recorded assets associated with straight-line rental revenue
and acceleration of depreciation and amortization expense associated with costs
we incurred related to these leases. We had no significant USG leases with lease
terms determined to have been over-estimated during the reporting periods
included herein.

Impairment of Long-Lived Assets



We assess the asset groups associated with each of our properties for indicators
of impairment quarterly or when circumstances indicate that an asset group may
be impaired. If our analyses indicate that the carrying values of certain
properties' asset groups may be impaired, we perform a recoverability analysis
for such asset groups. If and when our plans change for a property, we revise
our recoverability analyses to use the cash flows expected from the operations
and eventual disposition of such property using holding periods that are
consistent with our revised plans. In our accounting for impairment of
long-lived assets, we estimate property fair values based on contract prices,
indicative bids, discounted cash flow analyses or comparable sales analyses. We
estimate cash flows used in performing impairment analyses based on our plans
for the property and our views of market and economic conditions. Our estimates
consider items such as current and future market rental and occupancy rates,
estimated operating and capital expenditures and recent sales data for
comparable properties; most of these items are influenced by market data
obtained from real estate leasing and brokerage firms and our direct experience
with the properties and their markets. Our determination of appropriate
capitalization or discount rates for use in estimating property fair values also
requires significant judgment and is typically based on many factors, including
the prevailing rate for the market or submarket, as well as the quality and
location of the property.

Since asset groups associated with properties held for sale are carried at the
lower of their carrying values (i.e., cost less accumulated depreciation and any
impairment loss recognized, where applicable) or estimated fair values less
costs to sell, decisions by us to sell certain properties will result in
impairment losses if the carrying values of the specific properties' asset
groups classified as held for sale exceed such properties' estimated fair values
less costs to sell. Our estimates of fair value
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consider matters such as recent sales data for comparable properties and, where
applicable, contracts or the results of negotiations with prospective
purchasers. These estimates are subject to revision as market conditions, and
our assessment of such conditions, change.

Historically, future market rental and occupancy rates have tended to be the
most variable assumption in our impairment analyses of properties to be held and
used; while changes in these assumptions can significantly affect our estimates
of property undiscounted future cash flows in our recoverability analyses, such
changes historically have not usually resulted in impairment losses since the
resulting recoverability analyses still have tended to exceed the carrying value
of the property asset groups. Historically, our recognition of impairment losses
has most often occurred due to changes in our estimates of future cash flows
resulting from a change in our plans for a property, such as a decision by us to
sell or shorten our expected holding period for a property or to not develop a
property. Changes in the estimated future cash flows due to changes in our plans
for a property or significant changes in our views regarding property market and
economic conditions and/or our ability to obtain development rights could result
in recognition of impairment losses that could be substantial.

Concentration of Operations

Customer Concentration of Property Operations



The table below sets forth the 20 largest tenants in our portfolio of operating
properties (including our office and data center shell properties and wholesale
data center) based on percentage of annualized rental revenue:

                                                                    

Percentage of Annualized Rental


                                                                    Revenue 

of Operating Properties


                                                               for 20 Largest Tenants as of December 31,
Tenant                                                       2021                  2020                2019
USG                                                             35.6  %              34.1  %             34.6  %
Fortune 100 Company (1)                                          9.2  %               9.1  %              7.9  %
General Dynamics Corporation (1)                                 5.6  %               5.6  %              4.9  %
The Boeing Company (1)                                           2.5  %               3.0  %              3.2  %
CACI International Inc (1)                                       2.4  %               2.4  %              2.5  %
Peraton Corp. (1)                                                2.1  %                  N/A              0.9  %
Booz Allen Hamilton, Inc.                                        1.9  %               2.0  %              2.1  %
CareFirst Inc. (1)                                               1.7  %               2.0  %              2.1  %
Northrop Grumman Corporation                                     1.4  %               2.3  %              2.2  %
Raytheon Technologies Corporation (1)                            1.1  %               1.0  %              1.0  %
Wells Fargo & Company (1)                                        1.1  %               1.2  %              1.3  %
Yulista Holding, LLC                                             1.1  %               1.0  %                 N/A
AT&T Corporation (1)                                             1.1  %               1.1  %              1.3  %
Miles and Stockbridge, PC                                        1.0  %               1.0  %              1.1  %
Mantech International Corp.                                      1.0  %               0.8  %              0.7  %
Morrison & Foerster, LLP                                         1.0  %               1.0  %                 N/A
Jacobs Engineering Group Inc. (1)                                1.0  %               0.9  %              1.0  %
Transamerica Life Insurance Company                              0.9  %               0.9  %              0.9  %
The MITRE Corporation                                            0.8  %               0.8  %              0.7  %
University System of Maryland (1)                                0.8  %               0.9  %              1.2  %
Science Applications International Corporation                       N/A              0.9  %              1.0  %
Kratos Defense and Security Solutions (1)                            N/A                 N/A              1.0  %
Subtotal of 20 largest tenants                                  73.3  %              72.0  %             71.6  %
All remaining tenants                                           26.7  %              28.0  %             28.4  %
Total                                                          100.0  %             100.0  %            100.0  %
Total annualized rental revenue                        $     589,425

$ 571,035 $ 525,338

(1)Includes affiliated organizations.

The USG's concentration increased from 2020 to 2021 due primarily to new properties placed in service in which it is a tenant.


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Concentration of Office and Data Center Shell Properties by Segment



The table below sets forth the segment allocation of our annualized rental
revenue of office and data center shell properties as of the end of the last
three calendar years:

                                              Percentage of Annualized Rental Revenue of Office and                        Number of Properties as of
                                                 Data Center Shell Properties as of December 31,                                  December 31,
Region                                           2021                  2020                 2019                2021                  2020                  2019
Defense/IT Locations:
Fort Meade/BW Corridor                              47.0  %              47.5  %              51.3  %             90                    89                     88
NoVA Defense/IT                                     13.3  %              11.2  %              10.9  %             14                    13                     13
Lackland Air Force Base                             10.6  %               9.8  %              10.5  %              8                     7                      7
Navy Support                                         5.9  %               6.3  %               6.5  %             21                    21                     21
Redstone Arsenal                                     5.4  %               5.6  %               3.5  %             17                    15                     10
Data Center Shells                                   5.3  %               6.6  %               5.3  %             26                    26                     22
Total Defense/IT Locations                          87.5  %              87.0  %              87.9  %            176                   171                    161
Regional Office                                     11.6  %              12.5  %              11.5  %              8                     8                      7
Other                                                0.9  %               0.5  %               0.6  %              2                     2                      2
                                                   100.0  %             100.0  %             100.0  %            186                   181                    170



The changes in revenue concentration reflected above between year end 2020 and
2021 were attributable primarily to the effect of occupied properties placed in
service in 2021 except for the decreases for Data Center Shells, which were
attributable to our sale in 2021 of a 90% interest in two properties, and for
Navy Support and Regional Office, which were due to lower occupancy.

Occupancy and Leasing

Office and Data Center Shell Portfolio

The tables below set forth occupancy information pertaining to our portfolio of office and data center shell properties:

December 31,


                                                             2021             2020             2019
Occupancy rates at period end
Total                                                        92.4  %          94.1  %          92.9  %
Defense/IT Locations:
Fort Meade/BW Corridor                                       90.0  %          91.0  %          92.4  %
NoVA Defense/IT                                              89.5  %          88.1  %          82.4  %
Lackland Air Force Base                                     100.0  %         100.0  %         100.0  %
Navy Support                                                 93.9  %          97.2  %          92.5  %
Redstone Arsenal                                             90.8  %          99.4  %          99.3  %
Data Center Shells                                          100.0  %         100.0  %         100.0  %
Total Defense/IT Locations                                   93.2  %          94.5  %          93.7  %
Regional Office                                              87.3  %          92.5  %          88.1  %
Other                                                        66.2  %          68.4  %          73.0  %
Annualized rental revenue per occupied square foot at
year end                                                  $ 32.47          $ 31.50          $ 31.28



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                                       Rentable          Occupied
                                     Square Feet       Square Feet
                                             (in thousands)
December 31, 2020                     20,959            19,722
Vacated upon lease expiration (1)          -              (773)
Occupancy for new leases                   -               493
Developed or redeveloped                 766               628

Other changes                            (15)                -
December 31, 2021                     21,710            20,070

(1)Includes lease terminations and space reductions occurring in connection with lease renewals.

With regard to changes in occupancy from December 31, 2020 to December 31, 2021:



•Total: Decrease was due primarily to a 121,000 square foot property in our
Redstone Arsenal sub-segment vacated by its tenant in late 2021 and 137,000
square feet in newly-developed vacant space placed in service (most of which was
in a Regional Office property);
•Fort Meade/BW Corridor: Decrease was due primarily to a 63,000 square foot
property vacated by its tenant (which was subsequently leased to a new tenant
that will take occupancy in 2022) and 46,000 square feet in newly-developed
space in a property placed in service;
•NoVA Defense/IT: Increase was due primarily to a 348,000 square foot
fully-occupied property placed in service;
•Navy Support: Decreased despite its 76.1% tenant retention rate in 2021 due to
minimal leasing of vacant space;
•Redstone Arsenal: Decreased due primarily to a 121,000 square foot property
vacated by its tenant in late 2021;
•Regional Office: Decreased due to 81,000 square feet in newly-developed vacant
space in a property placed in service, space vacated with its 63.2% tenant
retention rate and minimal leasing of vacant space. This segment included
properties in Baltimore City, two sub-markets in Northern Virginia and
Washington, D.C. We believe that the restrictive measures and economic
uncertainty caused by the pandemic impacted leasing demand for this segment, and
may continue to do so in the future. As of December 31, 2021, we had scheduled
lease expirations in 2022 for 327,000 square feet, or 17.5%, of this segment's
occupied square feet (including a 140,000 square foot space that we know is not
renewing in 2022); and
•Other: Included two properties totaling 157,000 square feet in Aberdeen,
Maryland.

In 2021, we leased 3.9 million square feet, including 1.2 million square feet of
development space in Defense/IT Locations, with weighted average lease terms of
13.4 years.

In 2021, we renewed leases on 2.1 million square feet, representing a tenant
retention rate of 74.2%. The cash rents of these renewals (totaling $33.34 per
square foot) decreased on average by approximately 2.2% and the straight-line
rents (totaling $33.87 per square foot) increased on average by approximately
5.2% relative to the leases previously in place for the space. The renewed
leases had a weighted average lease term of approximately 5.4 years, with
average escalations per year of 2.3%, and the per annum average committed costs
associated with completing the leasing was approximately $2.99 per square foot.
The decrease in cash rents on renewals was attributable primarily to per annum
rent escalation terms of the previous leases that increased rents over the lease
terms by amounts exceeding the increases in the applicable market rental rates.

In 2021, we also completed leasing on 616,000 square feet of vacant space. The
cash rents of this leasing totaled $26.95 per square foot and the straight-line
rents totaled $27.56 per square foot; these leases had a weighted average lease
term of approximately 8.2 years, with average escalations per year of 2.9%, and
the per annum average committed costs associated with completing this leasing
was approximately $8.60 per square foot.

                                       30

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Lease Expirations

The table below sets forth as of December 31, 2021 our scheduled lease expirations based on the non-cancelable term of tenant leases determined in accordance with generally accepted accounting principles for our portfolio of office and data center shell properties by segment/sub-segment in terms of percentage of annualized rental revenue:

Expiration of Annualized Rental Revenue of Operating Properties


                                                2022               2023               2024               2025              2026               Thereafter               Total
Defense/IT Locations
Fort Meade/BW Corridor                            5.8  %             8.9  %             7.4  %            10.8  %            4.7  %                   9.5  %             47.0  %
NoVA Defense/IT                                   0.2  %             0.6  %             3.0  %             2.1  %            0.2  %                   7.1  %             13.3  %
Lackland Air Force Base                           0.0  %             0.0  %             0.0  %             7.0  %            2.1  %                   1.5  %             10.6  %
Navy Support                                      1.0  %             1.3  %             1.3  %             0.3  %            0.7  %                   1.3  %              5.9  %
Redstone Arsenal                                  0.4  %             0.8  %             0.3  %             0.9  %            0.1  %                   2.8  %              5.4  %
Data Center Shells                                0.0  %             0.0  %             0.1  %             0.0  %            0.1  %                   5.0  %              5.3  %
Regional Office                                   2.0  %             0.8  %             0.4  %             0.7  %            1.4  %                   6.3  %             11.6  %
Other                                             0.0  %             0.0  %             0.2  %             0.7  %            0.0  %                   0.0  %              0.9  %
Total                                             9.4  %            12.5  %            12.7  %            22.6  %            9.3  %                  33.5  %            100.0  %



This portfolio's weighted average lease term as of December 31, 2021 was
approximately five years. We believe that the weighted average annualized rental
revenue per occupied square foot for the portfolio's leases expiring in 2022
was, on average, approximately 1.0% to 3.0% higher than estimated current market
rents for the related space, with specific results varying by segment.

Results of Operations

For a discussion of our results of operations comparison for 2020 and 2019, refer to our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed on February 12, 2021.



We evaluate the operating performance of our properties using NOI from real
estate operations, our segment performance measure, which includes: real estate
revenues and property operating expenses from continuing and discontinued
operations; and the net of revenues and property operating expenses of real
estate operations owned through unconsolidated real estate joint ventures
("UJVs") that is allocable to our ownership interest ("UJV NOI allocable to
COPT").  We view our NOI from real estate operations as comprising the following
primary categories:

•office and data center shell properties:
•stably owned and 100% operational throughout the two years being compared.  We
define these as changes from "Same Properties." For further discussion of the
concept of "operational," refer to the section of Note 2 of the consolidated
financial statements entitled "Properties";
•developed or redeveloped and placed into service that were not 100% operational
throughout the two years being compared; and
•disposed; and
•our wholesale data center.

 In addition to owning properties, we provide construction management and other
services. The primary manner in which we evaluate the operating performance of
our construction management and other service activities is through a measure we
define as NOI from service operations, which is based on the net of the revenues
and expenses from these activities.  The revenues and expenses from these
activities consist primarily of subcontracted costs that are reimbursed to us by
customers along with a management fee.  The operating margins from these
activities are small relative to the revenue.  We believe NOI from service
operations is a useful measure in assessing both our level of activity and our
profitability in conducting such operations.

Since both of the measures discussed above exclude certain items includable in
net income, reliance on these measures has limitations; management compensates
for these limitations by using the measures simply as supplemental measures that
are considered alongside other GAAP and non-GAAP measures. A reconciliation of
NOI from real estate operations and NOI from service operations to income from
continuing operations reported on the consolidated statements of operations is
provided in Note 16 to our consolidated financial statements.

                                       31

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Comparison of Statements of Operations for the Years Ended December 31, 2021 and 2020

For the Years Ended December 31,


                                                                    2021                   2020             Variance
                                                                                  (in thousands)
Revenues
Revenues from real estate operations                         $    556,570              $ 511,714          $  44,856
Construction contract and other service revenues                  107,876                 70,640             37,236
Total revenues                                                    664,446                582,354             82,092
Operating expenses
Property operating expenses                                       213,377                190,796             22,581

Depreciation and amortization associated with real estate operations

                                                        137,543                126,503             11,040
Construction contract and other service expenses                  104,053                 67,615             36,438
Impairment losses                                                       -                  1,530             (1,530)
General, administrative and leasing expenses                       36,127                 33,001              3,126
Business development expenses and land carry costs                  4,647                  4,473                174
Total operating expenses                                          495,747                423,918             71,829

Interest expense                                                  (65,398)               (67,937)             2,539
Interest and other income                                           7,879                  8,574               (695)
Credit loss recoveries                                              1,128                    933                195
Gain on sales of real estate                                       65,590                 30,209             35,381

Gain on sale of investment in unconsolidated real estate joint venture

                                                           -                 29,416            (29,416)
Loss on early extinguishment of debt                             (100,626)                (7,306)           (93,320)
Loss on interest rate derivatives                                       -                (53,196)            53,196
Equity in income of unconsolidated entities                         1,093                  1,825               (732)
Income tax expense                                                   (145)                  (353)               208
Income from continuing operations                                  78,220                100,601            (22,381)
Discontinued operations                                             3,358                  2,277              1,081
Net income                                                   $     81,578              $ 102,878          $ (21,300)


                                       32

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NOI from Real Estate Operations



                                                                                     For the Years Ended December 31,
                                                                          2021                                2020             Variance
                                                                            (Dollars in thousands, except per square foot data)
Revenues
Same Properties revenues
Lease revenue, excluding lease termination revenue and
provision for collectability losses                              $           491,468                      $ 482,970          $   8,498
Lease termination revenue, net                                                 2,416                            834              1,582

Provision for collectability losses included in lease revenue

                                                                         (105)                        (2,610)             2,505
Other property revenue                                                         2,769                          2,590                179
Same Properties total revenues                                               496,548                        483,784             12,764
Developed and redeveloped properties placed in service                        53,158                         15,928             37,230
Wholesale data center                                                         30,490                         27,011              3,479

Dispositions                                                                   2,844                         11,225             (8,381)
Other                                                                          4,020                            777              3,243
                                                                             587,060                        538,725             48,335
Property operating expenses
Same Properties                                                             (196,951)                      (185,975)           (10,976)
Developed and redeveloped properties placed in service                       (12,124)                        (2,489)            (9,635)
Wholesale data center                                                        (17,424)                       (13,543)            (3,881)

Dispositions                                                                    (434)                        (1,202)               768
Other                                                                         (3,286)                          (631)            (2,655)
                                                                            (230,219)                      (203,840)           (26,379)

UJV NOI allocable to COPT
Same Properties                                                                2,010                          2,021                (11)
Retained interests in newly-formed UJVs                                        2,038                            112              1,926
Dispositions                                                                     (19)                         4,818             (4,837)
                                                                               4,029                          6,951             (2,922)

NOI from real estate operations
Same Properties                                                              301,607                        299,830              1,777
Developed and redeveloped properties placed in service                        41,034                         13,439             27,595
Wholesale data center                                                         13,066                         13,468               (402)

Dispositions, net of retained interests in newly-formed
UJVs                                                                           4,429                         14,953            (10,524)
Other                                                                            734                            146                588
                                                                 $           360,870                      $ 341,836          $  19,034

Same Properties NOI from real estate operations by segment
Defense/IT Locations                                             $           269,635                      $ 266,967          $   2,668
Regional Office                                                               30,615                         31,220               (605)
Other                                                                          1,357                          1,643               (286)
                                                                 $           301,607                      $ 299,830          $   1,777

Same Properties rent statistics
Average occupancy rate                                                          92.3  %                        92.8  %            (0.5  %)

Average straight-line rent per occupied square foot (1) $

    26.50                      $   26.26          $    0.24

(1)Includes minimum base rents, net of abatements and lease incentives and excluding lease termination revenue, on a straight-line basis for the years set forth above.



Our Same Properties pool consisted of 159 properties, comprising 79.9% of our
office and data center shell portfolio's square footage as of December 31, 2021.
This pool of properties changed from the pool used for purposes of comparing
2020 and 2019 in our 2020 Annual Report on Form 10-K due to the: addition of
eight properties placed in service and 100%
                                       33

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operational on or before January 1, 2020 and nine properties owned through an
unconsolidated real estate joint venture that was formed in 2019; and removal of
two properties in which we sold a 90% interest.

Regarding the changes in NOI from real estate operations reported above:



•the increase for our Same Properties pool was due primarily to:
•lower provisions for collectability losses (primarily attributable to the
effect in 2020 of the pandemic on certain tenants serving as amenities to
Defense/IT Location properties) and higher lease termination revenues in the
current period, as well as higher rent per occupied square foot in the current
period due to an increase in rental rates (mostly from leases of renewed or
previously-vacant space); offset in part by the effects of
•lower occupancy and higher snow removal and repairs and maintenance expenses in
the current period;
•developed and redeveloped properties placed in service reflects the effect of
17 properties placed in service in 2020 and 2021; and
•dispositions, net of retained interest in newly-formed UJVs reflects the effect
of our decrease in ownership of eight data center shells in 2020 and two in
2021.

NOI from Service Operations
                                                                     For the Years Ended December 31,
                                                                2021                 2020             Variance
                                                                              (in thousands)
Construction contract and other service revenues          $     107,876          $  70,640          $  37,236
Construction contract and other service expenses               (104,053)           (67,615)           (36,438)
NOI from service operations                               $       3,823          $   3,025          $     798

Construction contract and other service revenues and expenses increased due primarily to a higher volume of construction activity in connection with several of our tenants. Construction contract activity is inherently subject to significant variability depending on the volume and nature of projects undertaken by us primarily on behalf of tenants. Service operations are an ancillary component of our overall operations that typically contribute an insignificant amount of income relative to our real estate operations.

Depreciation and amortization associated with real estate operations

The increase in depreciation and amortization associated with real estate operations was primarily attributable to newly-developed properties placed in service.

General, administrative and leasing expenses



General, administrative and leasing expenses increased in large part due to the
effect of the resignation of our Chief Operating Officer in early 2020 and
hiring of his replacement in late 2020, as well as higher incentive compensation
awards for 2021 in recognition of the Company's performance.

We capitalize compensation and indirect costs associated with properties, or
portions thereof, undergoing development or redevelopment activities. Our
capitalized compensation and indirect costs totaled $11.0 million in 2021 and
$9.4 million in 2020.

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Interest expense

The table below sets forth components of our interest expense:



                                                                      For 

the Years Ended December 31,


                                                                 2021                2020            Variance
                                                                              (in thousands)
Interest on unsecured senior notes                          $     48,333          $ 53,534          $ (5,201)
Interest on mortgage and other secured debt                        7,373             8,658            (1,285)
Interest on unsecured term debt                                    4,259             5,909            (1,650)
Interest on Revolving Credit Facility                              1,631             3,239            (1,608)
Interest expense recognized on interest rate swaps                 5,028             3,726             1,302
Amortization of deferred financing costs                           2,980             2,538               442
Other interest                                                     2,261             2,393              (132)
Capitalized interest                                              (6,467)          (12,060)            5,593
Interest expense                                            $     65,398          $ 67,937          $ (2,539)



Regarding the changes in interest expense components reported above: the
decrease in interest expense on unsecured senior notes was attributable to our
refinancing in 2020 and 2021 of all of our previous notes with new notes at
lower interest rates; and the decrease in capitalized interest was due primarily
to lower construction volume in 2021 relative to 2020.

Our average outstanding debt was $2.2 billion in 2021 and $2.1 billion in 2020,
and our weighted average effective interest rate on debt was approximately 3.0%
in 2021 and 3.6% in 2020.

Gain on sales of real estate

Gain on sales of real estate in 2021 included primarily $40.2 million from our
sale of 90% interests in two data center shell properties and $25.9 million from
our sale of a property in our data center shells sub-segment that was previously
removed from service. The gain on sales of real estate in 2020 included our sale
of 90% interests in two data center shell properties. For the sales of 90%
interests in properties in 2021 and 2020, we retained 10% interests in the
properties through unconsolidated real estate joint ventures.

Gain on sale of investment in unconsolidated real estate joint venture



The gain on sale of investment in unconsolidated real estate joint venture
recognized in 2020 was attributable to our sale of a portion of our ownership
interests in six data center shell properties owned through an unconsolidated
real estate joint venture.

Loss on extinguishment of debt

The loss on early extinguishment of debt recognized in 2021 and 2020 was attributable primarily to our unsecured senior notes refinancings in each of those years.

Loss on interest rate derivatives



In 2020, we recognized a loss on interest rate swaps previously designated as
cash flow hedges of interest expense on forecasted future borrowings following
our determination that such borrowings would probably not occur.

Funds from Operations



Funds from operations ("FFO") is defined as net income computed using GAAP,
excluding gains on sales and impairment losses of real estate (net of associated
income tax) and real estate-related depreciation and amortization. FFO also
includes adjustments to net income for the effects of the items noted above
pertaining to UJVs that were allocable to our ownership interest in the UJVs. We
believe that we use the Nareit definition of FFO, although others may interpret
the definition differently and, accordingly, our presentation of FFO may differ
from those of other REITs.  We believe that FFO is useful to management and
investors as a supplemental measure of operating performance because, by
excluding gains on sales and impairment losses of real estate and investments in
unconsolidated real estate joint ventures (net of associated income tax), and
real estate-related depreciation and amortization, FFO can help one compare our
operating performance between periods.  In addition, since most equity REITs
provide FFO information to the investment community, we believe that FFO is
useful to investors as a supplemental measure for comparing our results to those
of other equity REITs.  We believe that net income is the most directly
comparable GAAP measure to FFO.

                                       35

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Since FFO excludes certain items includable in net income, reliance on the
measure has limitations; management compensates for these limitations by using
the measure simply as a supplemental measure that is weighed in balance with
other GAAP and non-GAAP measures. FFO is not necessarily an indication of our
cash flow available to fund cash needs.  Additionally, it should not be used as
an alternative to net income when evaluating our financial performance or to
cash flow from operating, investing and financing activities when evaluating our
liquidity or ability to make cash distributions or pay debt service.

Basic FFO available to common share and common unit holders ("Basic FFO") is FFO
adjusted to subtract (1) preferred share dividends, (2) income attributable to
noncontrolling interests through ownership of preferred units in the Operating
Partnership or interests in other consolidated entities not owned by us,
(3) depreciation and amortization allocable to noncontrolling interests in other
consolidated entities and (4) Basic FFO allocable to share-based compensation
awards. With these adjustments, Basic FFO represents FFO available to common
shareholders and common unitholders.  Common units in the Operating Partnership
are substantially similar to our common shares and are exchangeable into common
shares, subject to certain conditions.  We believe that Basic FFO is useful to
investors due to the close correlation of common units to common shares.  We
believe that net income is the most directly comparable GAAP measure to Basic
FFO.  Basic FFO has essentially the same limitations as FFO; management
compensates for these limitations in essentially the same manner as described
above for FFO.

Diluted FFO available to common share and common unit holders ("Diluted FFO") is
Basic FFO adjusted to add back any changes in Basic FFO that would result from
the assumed conversion of securities that are convertible or exchangeable into
common shares.  We believe that Diluted FFO is useful to investors because it is
the numerator used to compute Diluted FFO per share, discussed below.  We
believe that net income is the most directly comparable GAAP measure to Diluted
FFO.  Since Diluted FFO excludes certain items includable in the numerator to
diluted EPS, reliance on the measure has limitations; management compensates for
these limitations by using the measure simply as a supplemental measure that is
weighed in the balance with other GAAP and non-GAAP measures.  Diluted FFO is
not necessarily an indication of our cash flow available to fund cash needs.
Additionally, it should not be used as an alternative to net income when
evaluating our financial performance or to cash flow from operating, investing
and financing activities when evaluating our liquidity or ability to make cash
distributions or pay debt service.

Diluted FFO available to common share and common unit holders, as adjusted for
comparability is defined as Diluted FFO adjusted to exclude operating property
acquisition costs; gain or loss on early extinguishment of debt; FFO associated
with properties securing non-recourse debt on which we have defaulted and which
we have extinguished, or expect to extinguish, via conveyance of such
properties, including property NOI, interest expense and gains on debt
extinguishment (discussed further below); loss on interest rate derivatives;
demolition costs on redevelopment and nonrecurring improvements; executive
transition costs; issuance costs associated with redeemed preferred shares;
allocations of FFO to holders of noncontrolling interests resulting from capital
events; and certain other expenses that we believe are not closely correlated
with our operating performance.  This measure also includes adjustments for the
effects of the items noted above pertaining to UJVs that were allocable to our
ownership interest in the UJVs. We believe this to be a useful supplemental
measure alongside Diluted FFO as it excludes gains and losses from certain
investing and financing activities and certain other items that we believe are
not closely correlated to (or associated with) our operating performance. We
believe that net income is the most directly comparable GAAP measure to this
non-GAAP measure.  This measure has essentially the same limitations as Diluted
FFO, as well as the further limitation of not reflecting the effects of the
excluded items; we compensate for these limitations in essentially the same
manner as described above for Diluted FFO.

Diluted FFO per share is (1) Diluted FFO divided by (2) the sum of the
(a) weighted average common shares outstanding during a period, (b) weighted
average common units outstanding during a period and (c) weighted average number
of potential additional common shares that would have been outstanding during a
period if other securities that are convertible or exchangeable into common
shares were converted or exchanged.  We believe that Diluted FFO per share is
useful to investors because it provides investors with a further context for
evaluating our FFO results in the same manner that investors use earnings per
share ("EPS") in evaluating net income available to common shareholders.  In
addition, since most equity REITs provide Diluted FFO per share information to
the investment community, we believe that Diluted FFO per share is a useful
supplemental measure for comparing us to other equity REITs. We believe that
diluted EPS is the most directly comparable GAAP measure to Diluted FFO per
share. Diluted FFO per share has most of the same limitations as Diluted FFO
(described above); management compensates for these limitations in essentially
the same manner as described above for Diluted FFO.

Diluted FFO per share, as adjusted for comparability is (1) Diluted FFO, as
adjusted for comparability divided by (2) the sum of the (a) weighted average
common shares outstanding during a period, (b) weighted average common units
outstanding during a period and (c) weighted average number of potential
additional common shares that would have been outstanding during a period if
other securities that are convertible or exchangeable into common shares were
converted or exchanged.  We believe that this measure is useful to investors
because it provides investors with a further context for evaluating our FFO
results.  We believe this to be a useful supplemental measure alongside Diluted
FFO per share as it excludes gains and losses from certain investing and
financing activities and certain other items that we believe are not closely
correlated to (or associated with) our operating performance. We believe that
diluted EPS is the most directly comparable GAAP measure to this per share
measure.  This measure has most of the same limitations as Diluted FFO
(described above) as well as the further limitation of not reflecting
                                       36

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the effects of the excluded items; we compensate for these limitations in essentially the same manner as described above for Diluted FFO.



The computations for all of the above measures on a diluted basis assume the
conversion of common units in COPLP but do not assume the conversion of other
securities that are convertible into common shares if the conversion of those
securities would increase per share measures in a given period.

We use measures called payout ratios as supplemental measures of our ability to
make distributions to investors based on each of the following: FFO; Diluted
FFO; and Diluted FFO, adjusted for comparability. These measures are defined as
(1) the sum of (a) dividends on unrestricted common shares and (b) distributions
to holders of interests in COPLP (excluding unvested share-based compensation
awards) divided by either (2) FFO, Diluted FFO or Diluted FFO, adjusted for
comparability.

                                       37

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The table below sets forth the computation of the above stated measures for 2021 and 2020 and provides reconciliations to the GAAP measures of COPT and subsidiaries associated with such measures:


                                                                               For the Years Ended December 31,
                                                                                   2021                  2020
                                                                               (Dollars and shares in thousands,
                                                                                    except per share data)
Net income                                                                   $     81,578            $  102,878
Real estate-related depreciation and amortization                                 147,833               138,193
Depreciation and amortization on UJVs allocable to COPT                             1,981                 3,329
Impairment losses on real estate                                                        -                 1,530
Gain on sales of real estate                                                      (65,590)              (30,209)
Gain on sale of investment in unconsolidated real estate JV                             -               (29,416)

FFO                                                                               165,802               186,305
FFO allocable to other noncontrolling interests                                    (5,483)              (15,705)

Basic FFO allocable to share-based compensation awards                               (777)                 (719)

Noncontrolling interests-preferred units in the Operating Partnership

             -                  (300)
Basic FFO available to common shares and common unit holders                      159,542               169,581
Redeemable noncontrolling interests                                                   (11)                  147

Diluted FFO adjustments allocable to share-based compensation awards

            32                     -
Diluted FFO available to common share and common unit holders                     159,563               169,728
Loss on early extinguishment of debt                                              100,626                 7,306
Loss on interest rate derivatives                                                       -                53,196

Loss on interest rate derivatives included in interest expense                        221                     -
Demolition costs on redevelopment and nonrecurring improvements                       423                    63

Diluted FFO comparability adjustments allocable to share-based compensation awards

                                                                               (507)                 (327)
Dilutive preferred units in the Operating Partnership                                   -                   300

FFO allocation to other noncontrolling interests resulting from capital event

                                                                                   -                11,090

Diluted FFO available to common share and common unit holders, as adjusted for comparability

$    260,326            $  241,356

Weighted average common shares                                                    111,960               111,788
Conversion of weighted average common units                                         1,257                 1,236
Weighted average common shares/units - Basic FFO per share                        113,217               113,024
Dilutive effect of share-based compensation awards                                    330                   288

Redeemable noncontrolling interests                                                   128                   123
Weighted average common shares/units - Diluted FFO per share                      113,675               113,435
Dilutive convertible preferred units                                                    -                   171

Weighted average common shares/units - Diluted FFO per share, as adjusted
for comparability                                                                 113,675               113,606

Diluted FFO per share                                                        $       1.40            $     1.50
Diluted FFO per share, as adjusted for comparability                         $       2.29            $     2.12

Denominator for diluted EPS                                                       112,418               112,076
Weighted average common units                                                       1,257                 1,236
Redeemable noncontrolling interests                                                     -                   123

Denominator for diluted FFO per share                                             113,675               113,435
Dilutive convertible preferred units                                                    -                   171

Denominator for diluted FFO per share, as adjusted for comparability

       113,675               113,606

Common share dividends - unrestricted shares and deferred shares             $    123,243            $  123,042
Common unit distributions - unrestricted units                                      1,387                 1,362
Common unit distributions - dilutive restricted units                                  25                     -

Dividends and distributions for FFO and diluted FFO payout ratios

       124,655               124,404
Distributions on dilutive preferred units                                               -                   300
Dividends and distributions for other payout ratio                           $    124,655            $  124,704

FFO payout ratio                                                                     75.2  %               66.8  %
Diluted FFO payout ratio                                                             78.1  %               73.3  %
Diluted FFO payout ratio, as adjusted for comparability                              47.9  %               51.7  %


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Property Additions



The table below sets forth the major components of our additions to properties
for 2021 and 2020:

                                                                    For the Years Ended December 31,
                                                               2021                   2020             Variance
                                                                             (in thousands)
Development and redevelopment                           $    283,180

$ 345,818 $ (62,638)



Tenant improvements on operating properties (1)               23,533                    26,071          (2,538)
Capital improvements on operating properties                  35,970                    34,060           1,910
                                                        $    342,683              $ 405,949          $ (63,266)

(1)Tenant improvement costs incurred on newly-developed properties are classified in this table as development and redevelopment.

Cash Flows

Net cash flow from operating activities increased $10.7 million, or 4.5%, from 2020 to 2021 due primarily to an increase in cash flow from real estate operations resulting from the growth of our property portfolio.



Net cash flow used in investing activities decreased $122.8 million from 2020 to
2021 due primarily to a $76.5 million decrease in cash outlays for development
and redevelopment of properties and the effect of $53.1 million paid in the
prior period to cash settle interest rate swaps.

Net cash flow used in financing activities in 2021 was $50.9 million, and
included dividends to common shareholders of $123.5 million. Net proceeds from
debt borrowings during the period totaled $82.8 million, which included the net
effect of our senior note issuances and senior note purchases and redemptions
(and related early extinguishment costs), the repayment of a portion of our term
loan facility, the payoff of a construction loan and mortgage loan (and related
early extinguishment costs) and the net pay down of our Revolving Credit
Facility.

Net cash flow provided by financing activities in 2020 was $91.3 million and included primarily the following:



•net proceeds from debt borrowings of $245.0 million, which included $150.0
million in borrowings under a term loan facility and the net increase from our
senior notes issuance and senior notes purchase and redemption (and related
early extinguishment costs); offset in part by
•  dividends to common shareholders of $123.4 million;
•  distributions paid to redeemable noncontrolling interests of $14.4 million;
and
•  our redemption of COPLP Series I Preferred Units for $8.8 million.

Supplemental Guarantor Information



As of December 31, 2021, COPLP had several series of unsecured senior notes
outstanding that were issued in transactions registered with the SEC under the
Securities Act of 1933, as amended. These notes are COPLP's direct, senior
unsecured and unsubordinated obligations and rank equally in right of payment
with all of COPLP's existing and future senior unsecured and unsubordinated
indebtedness. However, these notes are effectively subordinated in right of
payment to COPLP's existing and future secured indebtedness. The notes are also
effectively subordinated in right of payment to all existing and future
liabilities and other indebtedness, whether secured or unsecured, of COPLP's
subsidiaries. COPT fully and unconditionally guarantees COPLP's obligations
under these notes. COPT's guarantees of these notes are senior unsecured
obligations that rank equally in right of payment with other senior unsecured
obligations of, or guarantees by, COPT. COPT itself does not hold any
indebtedness, and its only material asset is its investment in COPLP.

In March 2020, the SEC adopted amendments to Rule 3-10 of Regulation S-X and
adopted Rule 13-01 of Regulation S-X to simplify disclosure requirements related
to certain registered securities that became effective on January 4, 2021. As a
result of these amendments, subsidiary issuers of obligations guaranteed by the
parent are not required to provide separate financial statements, provided that
the subsidiary obligor is consolidated into the parent company's consolidated
financial statements, the parent guarantee is "full and unconditional" and the
alternative disclosure required by Rule 13-01 is provided, which includes
narrative disclosure and, subject to certain exceptions, summarized financial
information. Accordingly, we no longer present separate consolidated financial
statements for the Operating Partnership. Furthermore, as permitted under Rule
13-01(a)(4)(vi), we have excluded summarized financial information for the
Operating Partnership since: the assets, liabilities, and results of operations
of the Company and the Operating Partnership are not materially different than
the corresponding amounts presented in the consolidated financial statements of
the Company; and we believe that inclusion of such summarized financial
information would be repetitive and not provide incremental value to investors.

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Liquidity and Capital Resources

As of December 31, 2021, we had $13.3 million in cash and cash equivalents.



We have a Revolving Credit Facility with an aggregate commitment by the lenders
of $800.0 million, with the ability for us to increase such commitment to $1.25
billion, provided that there is no default under the facility and subject to the
approval of the lenders. We use this facility to initially fund much of the cash
requirements from our investing activities, including property
development/redevelopment costs, as well as certain debt balloon payments due
upon maturity.  We then subsequently pay down the facility using cash available
from operations and proceeds from long-term borrowings, equity issuances and
sales of interests in properties. The facility matures in March 2023, and may be
extended by two six-month periods at our option, provided that there is no
default under the facility and we pay an extension fee of 0.075% of the total
availability under the facility for each extension period. As of December 31,
2021, the maximum borrowing capacity under this facility totaled $800.0 million,
of which $724.0 million was available. On January 25, 2022, the full $800.0
million in borrowing capacity under the facility was available following our
repayment of the outstanding balance on that date using proceeds from our
wholesale data center sale.

Our senior unsecured debt is currently rated investment grade by the three major
rating agencies. We aim to maintain an investment grade rating to enable us to
use debt comprised of unsecured, primarily fixed-rate debt (including the effect
of interest rate swaps) from public markets and banks. We also use secured
nonrecourse debt from institutional lenders and banks primarily for joint
venture financings. In addition, we periodically raise equity when we access the
public equity markets by issuing common shares and, to a lesser extent,
preferred shares.

We have a program in place under which we may offer and sell common shares in
at-the-market stock offerings having an aggregate gross sales price of up to
$300 million. Under this program, we may also, at our discretion, sell common
shares under forward equity sales agreements. The use of a forward equity sales
agreement would enable us to lock in a price on a sale of common shares when the
agreement is executed but defer issuing the shares and receiving the sale
proceeds until a later date.

We believe that our liquidity and capital resources are adequate for our
near-term and longer-term requirements without necessitating property sales.
However, we may dispose of interests in properties opportunistically or when
market conditions otherwise warrant. In addition, we believe that we have the
ability to raise additional equity by selling interests in data center shells
through joint ventures.

Our material cash requirements, including contractual and other obligations, include:



•property operating expenses, including future lease obligations from us as a
lessee;
•construction contract expenses;
•general and administrative expenses;
•debt service, including interest expense;
•property development/redevelopment costs;
•tenant and capital improvements and leasing costs for operating properties
(expected to total approximately $90 million in 2022);
•debt balloon payments due upon maturity; and
•dividends to our shareholders.

We expect to use cash flow from operations in 2022 and annually thereafter for the foreseeable future to fund all of these cash requirements except for property development/redevelopment costs and debt balloon payments due upon maturity.



In 2022, we expect to spend $275 million to $300 million on
development/redevelopment costs, most of which was contractually obligated as of
December 31, 2021; we expect to fund these cash requirements using, in part, any
available remaining cash flow from operations, with the balance funded primarily
using borrowings under our Revolving Credit Facility, at least initially. As of
December 31, 2021, we had $300 million in debt balloon payments due in 2022; we
repaid $75 million of this debt on January 25, 2022 using proceeds from the sale
of our wholesale data center and expect to repay the remaining $225 million
using borrowings under our Revolving Credit Facility or proceeds from new
long-term debt borrowings. As we use our Revolving Credit Facility to fund
development/redevelopment costs and debt balloon payments, we intend to free up
borrowing capacity by paying it down using proceeds from sales of interests in
data center shells, property sales, new long-term debt borrowings and/or issuing
common shares.

Beyond 2022, we expect to continue to actively develop and redevelop properties
and fund using, in part, any available remaining cash flow from operations, with
most of the balance funded initially using borrowings under our Revolving Credit
Facility.

We provide disclosure in our consolidated financial statements on our future
lessee obligations (expected to be funded primarily by cash flow from
operations) in Note 5 and future debt obligations (expected to be refinanced by
new debt borrowings or funded by future equity issuances and/or sales of
interests in properties) in Note 10.
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Certain of our debt instruments require that we comply with a number of
restrictive financial covenants, including maximum leverage ratio, unencumbered
leverage ratio, minimum net worth, minimum fixed charge coverage, minimum
unencumbered interest coverage ratio, minimum debt service and maximum secured
indebtedness ratio.  As of December 31, 2021, we were compliant with these
covenants.

Recent Accounting Pronouncements

See Note 2 to our consolidated financial statements for information regarding recent accounting pronouncements.

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