455 Massachusetts Avenue

455 Massachusetts Avenue is a modern high-rise office building situated in the vibrant Mount Vernon Triangle neighborhood of Washington, D.C. Completed in 2007, this 12-floor structure reaches a height of 151 feet and was designed by the renowned architectural firm Gensler. It houses notable tenants including Citizens for Responsibility and Ethics in Washington and the National Democratic Institute, making it a significant location for political and civic engagement in the capital.