Exhibit 99.2

Third Quarter 2007

Supplemental Operating and Financial Data

for the Quarter Ended September 30, 2007

Company Background and Highlights

Third Quarter 2007

Washington Real Estate Investment Trust (the “Company”) is a self-administered, self-managed, equity real estate investment trust (REIT) investing in income-producing properties in the greater Washington metropolitan region. WRIT is diversified, as it invests in multifamily, retail, industrial/flex, office, and medical office segments.

Through the third quarter 2007, WRIT has acquired $247 million of assets and land for development, disposed of $58 million of assets, and completed the development of a $52 million office building and a 46 unit mid-rise apartment building. WRIT raised over $200 million of capital, closed on a new unsecured borrowing facility, and successfully amended its bond covenants. Also, WRIT announced its 183rd consecutive quarterly dividend per share at equal or increasing rates.

On August 17, 2007, WRIT acquired CentreMed I & II medical office buildings, located in Centreville, VA consisting of 52,000 net rentable square feet and 258 parking spaces, for $15.3 million. The buildings are located off Route 28/Centreville Road near I-66, in close proximity to INOVA Fair Oaks Hospital and Prince William Hospital. Upon acquisition, the property was 100% leased to 14 tenants and is expected to achieve a first-year, unleveraged yield of 7.2% on a cash basis and 7.6% on a GAAP basis.

On September 13, 2007, WRIT acquired a 0.8 acre parcel of land, located at 4661 Kenmore Avenue, Alexandria, VA for future medical office development. The acquisition was funded by issuing operating units in a consolidated subsidiary. The land is adjacent to WRIT’s Alexandria Professional Center, one-half mile from Inova Alexandria Hospital and directly off I-395. By right, WRIT may develop 70,000 square feet of office space on the site with the potential to develop additional square footage with a modification of the existing zoning. Prior to development, the land will serve as space for additional parking at WRIT's Alexandria Professional Center, purchased in April 2006 for $26.9 million.

On September 27, 2007, WRIT completed the sale of Maryland Trade Center I & II for $58 million. Maryland Trade Center I is a 16-story, office tower consisting of 190,000 net rentable square feet. Maryland Trade Center II is a 12-story, office tower consisting of 160,000 net rentable square feet. WRIT acquired the office properties on May 17, 1996 for $28 million and achieved a net book gain on sale of $25 million. The unlevered internal rate of return was 16.9% over the WRIT ownership period. Proceeds from the sale will be reinvested in a 1031 exchange.

In July, WRIT completed base construction on Dulles Station, a 180,000 square foot development project of Class A office and retail space located in Herndon, VA. The building, prominently visible from the Dulles Toll Road, is part of a mixed-use development which will include 1,095 multifamily units and 56,000 square feet of retail and restaurant space.

This quarter WRIT began delivering units in the mid-rise tower of Bennett Park, fully delivering all 46 units by quarter-end. Bennett Park is a ground-up development project in Arlington, VA consisting of high-rise and mid-rise Class A apartment buildings with a total of 224 units and 5,900 square feet of retail space. The mid-rise building was 70% leased at quarter-end. Construction is anticipated to be substantially complete on the high-rise tower in the fourth quarter 2007.

Construction is nearing completion at The Clayborne Apartments. The Clayborne is a ground-up development project in Alexandria, VA, adjacent to our 800 South Washington retail property. The project consists of a 74-unit Class A apartment building that will include 2,600 square feet of additional retail space. Construction is anticipated to be substantially complete during the fourth quarter 2007.

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Subsequent to the quarter-end, Thomas Regnell was promoted to Senior Vice President, Acquisitions. Mr. Regnell joined WRIT in 1995 and most recently served as Managing Director, Acquisitions. Over the past 12 years, Mr. Regnell was responsible for the acquisition of over $1.5 billion dollars of investment property for the WRIT portfolio through almost 70 individual transactions representing over 10 million square feet.

As of September 30, 2007, WRIT owns a diversified portfolio of 88 properties consisting of 14 retail centers, 24 general purpose office properties, 17 medical office properties, 23 industrial/flex properties, 10 multifamily properties and land for development. WRIT’s dividends have increased every year for 37 consecutive years and its FFO per share has increased every year for 34 consecutive years. WRIT shares are publicly traded on the New York Stock Exchange (NYSE:WRE).

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Net Operating Income Contribution by Sector—Third Quarter 2007

With investments in the multifamily, retail, industrial/flex, office and medical office segments, WRIT is uniquely diversified. This balanced portfolio provides stability during market fluctuations in specific property types.

Third Quarter 2007 Acquisitions

Certain statements in the supplemental disclosures which follow are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve known and unknown risks, uncertainties and other factors that may cause actual results to differ materially. Such risks, uncertainties and other factors include, but are not limited to, fluctuations in interest rates, availability of raw materials and labor costs, levels of competition, the effect of government regulation, the availability of capital, weather conditions, the timing and pricing of lease transactions and changes in general and local economic and real estate market conditions, and other risks and uncertainties detailed from time to time in our filings with the SEC, including our 2006 Form 10-K. We assume no obligation to update or supplement forward-looking statements that become untrue because of subsequent events.

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Supplemental Financial and Operating Data

Table of Contents

September 30, 2007

Consolidated Statements of Operations

(In thousands, except per share data)

(unaudited)

Note: Certain prior quarter amounts have been reclassified to conform to the current quarter presentation.

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Consolidated Balance Sheets

(In thousands)

(unaudited)

Note: Certain prior quarter amounts have been reclassified to conform to the current quarter presentation.

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Funds From Operations and Funds Available for Distribution

(In thousands, except per share data)

(unaudited)

⁽¹⁾ Funds From Operations (“FFO”) – The National Association of Real Estate Investment Trusts, Inc. (“NAREIT”) defines FFO (April, 2002 White Paper) as net income (computed in accordance with generally accepted accounting principles (“GAAP”)) excluding gains (or losses) from sales of property plus real estate depreciation and amortization. We consider FFO to be a standard supplemental measure for equity real estate investment trusts (“REITs”) because it facilitates an understanding of the operating performance of our properties without giving effect to real estate depreciation and amortization, which historically assumes that the value of real estate assets diminishes predictably over time. Since real estate values have instead historically risen or fallen with market conditions, we believe that FFO more accurately provides investors an indication of our ability to incur and service debt, make capital expenditures and fund other needs. FFO is a non-GAAP measure.

⁽²⁾ Funds Available for Distribution (“FAD”) is calculated by subtracting from FFO (1) recurring expenditures, tenant improvements and leasing costs, that are capitalized and amortized and are necessary to maintain our properties and revenue stream and (2) straight line rents, then adding (3) non-real estate depreciation and amortization and adding or subtracting the amortization of lease intangibles as appropriate. FAD is included herein, because we consider it to be a measure of a REIT’s ability to incur and service debt and to distribute dividends to its shareholders. FAD is a non-GAAP and non-standardized measure, and may be calculated differently by other REITs.

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Earnings Before Interest Taxes Depreciation and Amortization (EBITDA)

(In thousands)

(unaudited)

⁽¹⁾ EBITDA is earnings before interest, taxes, depreciation and amortization. We consider EBITDA to be an appropriate supplemental performance measure because it eliminates depreciation, interest and the gain (loss) from property dispositions, which permits investors to view income from operations without the effect of non-cash depreciation or the cost of debt. EBITDA is a non-GAAP measure.

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Long-Term Debt Analysis

(In thousands, except per share amounts)

Note: The current balance outstanding of the fixed rate bonds and notes is shown net of discounts/premiums in the amount of $906,325.

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Long-Term Debt Analysis

(In thousands, except per share amounts)

Continued from previous page

Debt Maturity Schedule

Annual Expirations and Weighted Average Interest Rates

Weighted average maturity = 8.4 years

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Capital Analysis

(In thousands, except per share amounts)

⁽¹⁾ The ratio of earnings to fixed charges is computed by dividing earnings by fixed charges. For this purpose, earnings consist of income from continuing operations plus fixed charges, less capitalized interest. Fixed charges consist of interest expense, including amortized costs of debt issuance, plus interest costs capitalized.

⁽²⁾ Debt service coverage ratio is computed by dividing earnings before interest income and expense, depreciation, amortization and gain on sale of real estate by interest expense and principal amortization.

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Core Portfolio Net Operating Income (NOI) Growth & Rental Rate Growth

2007 vs. 2006

Cash Basis

GAAP Basis

¹ Non-core properties were:

2007 Held for sale—Maryland Trade Centers I and II

2007 acquisitions—270 Technology Park, Monument II, 2440 M Street, Woodholme Medical Office Building, Woodholme Center, Ashburn Farm Office Park and CentreMed I & II

2006 acquisitions—15005 Shady Grove Road, 6565 Arlington Blvd, West Gude Drive, The Ridges and The Crescent.

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Core Portfolio Net Operating Income (NOI) Summary

(In thousands)