The McCormick Apartments consists of four stories, a mansard, and a raised basement. The entrance bow faces the intersection of Massachusetts Avenue and 18th Street, and the building measures about 80 feet, including the bow, along the five-bay…

Completed in 1819, Decatur House is significant as the first private residence constructed on Lafayette Square and the last of Benjamin Henry Latrobe's city houses in America to be preserved. Latrobe is also known for his architectural work on the…