Washington DC Marriott Marquis

Washington, DC

The largest hotel in downtown, the Washington DC Marriott Marquis Hotel & Convention Center provides 1,024,131 SF and 1,175 guestrooms and suites to area visitors and convention guests. The hotel sits adjacent to Mt. Vernon Square and connects to the Walter Washington Convention Center through a secure tunnel beneath 9th Street NW. The project also integrates the existing historic American Federation of Labor building, providing a separated guestroom tower connected at the lobby and 4th floor. There is 105,000 SF of banquet and meeting room space, including a 31,000 SF ballroom, the largest in the city. Additional amenities include five food and beverage outlets and a full-service health club ‘ultra-lounge’ within the guestroom tower. The Marriott Marquis, Marriott’s 4,000th hotel, opened May 1, 2014. Cooper Carry designed and documented in a collaboration with tvsdesign.

project scope

1,024,131 SF; 1,175 Keys




Quadrangle Development and Capstone Development


  • Washington Building Congress, Craftmanship Award (Cast-in-Place Concrete)— Marriott Marquis, Washington D.C., 2015
  • NAIOP Maryland/DC, Award of Excellence, Best Mixed-Use Project, Washington D.C. Marriott Marquis, Washington D.C., 2014
  • Washington Building Congress, Craftmaship Award (Cast-in-Place), Marriott Marquis, Washington D.C., 2014
  • LEED v2 BD+C: New Construction, Silver
Whether working directly for Marriott or for one of our development partners, Cooper Carry has consistently delivered projects that are efficient to operate, provide memorable experiences to our guests, and are significant and appropriate additions to their communities. — Steve McConnell, Vice President, Marriott International