WASHINGTON, D.C. — Property Group Partners has acquired the fee interest in three blocks of a recessed portion of I-395 in downtown Washington, D.C. The commercial real estate owner and developer will begin preliminary work on the 2.2 million-square-foot Capitol Crossing, a mixed-use project. Capitol Crossing will be built on an undeveloped site extending from Massachusetts Avenue to E Street. It will reconnect the Capitol Hill and East End districts that were cut off by the construction of I-395 in the 1960s. The mixed-use project is designed to achieve LEED Platinum certification. Development of the first office building on the site will begin in 2013. Plans call for five buildings on the site, including a 150-unit residential building and four office buildings spanning between 300,000 and 685,000 square feet. Each building will feature ground-floor retail space designed for restaurants and boutiques. Skidmore, Owings & Merrill designed the project’s master plan and Cassidy Turley is the project’s leasing agency.