Exhibit 99.2

First Quarter 2007

Supplemental Operating and Financial Data

for the Quarter Ended March 31, 2007

Company Background and Highlights

First 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 multi-family, retail, industrial/flex, office, and medical office segments.

In the year 2006, WRIT increased its dividend for the 36th consecutive year and achieved its 34th consecutive year of increased FFO per share. WRIT acquired 14 properties for $303 million and added 1.5 million square feet to the portfolio. We raised over $350 million of capital and entered into an unsecured revolving credit facility with an initial capacity of $200 million. WRIT strengthened its level of corporate governance appointing two new Trustees to the Board. And George “Skip” McKenzie was promoted to President and Chief Operating Officer.

In first quarter 2007, WRIT continued its momentum in both acquisitions and capital markets activity. This quarter, we raised $150 million of capital and acquired $155 million of assets. Our three development projects are progressing well and will be completed in 2007. WRIT announced its 181st consecutive quarterly dividend at equal or increasing rates.

On February 8, 2007, WRIT acquired a portfolio of five single-story flex buildings, consisting of 157,000 square feet, within 270 Technology Park in Frederick, Maryland for $26.5 million. 270 Technology Park presents a solid investment opportunity in high-quality flex buildings ideally located with excellent visibility just south of the City of Frederick along I-270 in one of Frederick’s fast-growing development areas.

On March 1, 2007, WRIT acquired the 100% leased Monument II, a class A, 205,000 square foot, eight-story office building with a detached five-level parking garage located along the Dulles Toll Road in Herndon, Virginia for $78.2 million. Monument II was completed in 2000 as part of the Monument at Worldgate complex, a mixed-use development consisting of class A office, retail, restaurants, hotels, health clubs, and residential buildings.

On March 9, 2007, WRIT acquired 2440 M Street, a Class A medical office building, consisting of 110,000 square feet, with a three-level parking garage in northwest Washington, D.C. for $50.0 million. 2440 M Street is well-positioned in the West End business district, just three blocks from George Washington University Hospital and 1 1/2 miles from Georgetown University Hospital.

In additon to the recent acquisitions, WRIT has several developments in progress. Bennett Park, formerly Rosslyn Towers, is a ground-up development project in Arlington, Virginia 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. Construction is anticipated to be complete on the high-rise building in fourth quarter 2007 and on the mid-rise in third quarter 2007. Total cost of the project is estimated to be $76.6 million.

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The Clayborne Apartments, formerly South Washington Street, is a ground-up development project in Alexandria, Virginia, adjacent to our 800 South Washington retail property. This project is a 75-unit Class A apartment building that will include 2,600 square feet of additional retail space. Construction is anticipated to be completed on the building in third quarter 2007. Total cost of the project is estimated to be $32.7 million.

Dulles Station is a 180,000 square foot development project of office and retail space located in Herndon, Virginia. Phase One of the Dulles Station development is anticipated to be complete in third quarter 2007 with an estimated cost of $52.0 million.

This quarter, WRIT raised more than $150 million in capital. On January 17, 2007, WRIT issued $135 million of 3 ⁷/8% Convertible Senior Notes due 2026. The $15 million over-allotment option was exercised and closed on January 30, 2007. Acquisitions and development were financed with proceeds from the January convertible note offering, borrowings on our line of credit, and cash from operations.

As of March 31, 2007, WRIT owns a diversified portfolio of 85 properties consisting of 14 retail centers, 25 general purpose office properties, 14 medical office properties, 23 industrial/flex properties, 9 multi-family properties and land for development. WRIT’s dividends have increased every year for 36 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 - First 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.

First Quarter 2007 Acquisitons

2440 M Street		Monument II		270 Technology Park
Washington, D.C.		Herndon, VA		Frederick, MD

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

March 31, 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.

6

Funds From Operations and Funds Available for Distribution

(In thousands, except per share data)

(unaudited)

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Earnings Before Interest Taxes Depreciation and Amortization (EBITDA)

(In thousands)

(unaudited)

8

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 $965,477.

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Long-Term Debt Analysis

(In thousands, except per share amounts)

Continued from previous page

Weighted average maturity = 9.1 years

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Capital Analysis

(In thousands, except per share amounts)

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

2007 vs. 2006

Cash Basis

GAAP Basis

2007 acquistions - 270 Technology Park, Monument II and 2440 M Street

2006 acquisitions - Hampton Overlook, Hampton South, Alexandria Professional Center, 9707 Medical Center Dr., 15001 Shady Grove Rd., Plumtree Medical Center, Randolph Shopping Center, Montrose Shopping Center, 9950 Business Parkway, 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)

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Core Portfolio Net Operating Income (NOI) Detail

(In Thousands)