Equity Commonwealth (NYSE: EQC) today announced it is calling its 5.75% Senior Notes due November 1, 2015 (the “Notes”) for redemption on May 1, 2015. The Notes will be redeemed in cash at a price of 100% of the principal amount of the Notes plus accrued and unpaid interest up to, but excluding, the redemption date. The aggregate principal outstanding of the Notes is $138,773,000.

From the redemption date forward, the Notes will no longer be deemed outstanding, interest will no longer accrue and holders will have no rights other than the right to receive the redemption price, without interest, upon surrender of the Notes. Payment of the redemption price will be made only upon presentation and surrender of the Notes to U.S. Bank, the trustee and paying agent, during its business hours at the address specified in the Notice of Redemption. The Notice of Redemption will be mailed to holders of the Notes on Wednesday, April 1, 2015. Questions regarding the Notice of Redemption should be directed to U.S. Bank, Bondholder Services at 800-934-6802.

About Equity Commonwealth

Equity Commonwealth (NYSE: EQC) is an internally managed and self-advised real estate investment trust (REIT). EQC is one of the largest commercial office REITs in the United States, with a portfolio of over 40 million square feet located in 30 states, DC and Australia.

Forward-Looking Statements

This press release may contain forward-looking statements and information within the meaning of the federal securities laws. These statements are based on current expectations, estimates, projections and assumptions made by management. While Equity Commonwealth management believes the assumptions underlying its forward-looking statements are reasonable, such information is inherently subject to uncertainties and may involve certain risks. Other risks and uncertainties are described under the heading “Risk Factors” in our Annual Report on Form 10-K and subsequent periodic reports filed with the Securities and Exchange Commission (SEC) and available on our website, www.eqcre.com. Many of these uncertainties and risks are difficult to predict and beyond management’s control. Forward-looking statements are not guarantees of future performance, results or events. Equity Commonwealth assume no obligation to update or supplement forward-looking statements that become untrue because of subsequent events.