The Potomac Boat Club located at 3530 Water Street, NW (also known as 3530 K Street, NW) in the Georgetown neighborhood of Washington, D.C. The American Craftsman building was designed by Alfred B. Mullett and Charles J. Cassidy in 1908. It's listed on the National Register of Historic Places and is a contributing property to the Chesapeake and Ohio Canal National Historical Park and the Georgetown Historic District.