Canal Window adaptively converts a previously neglected single-family rowhouse built in 1883 into a new office building. Located near Lock 3 of the Chesapeake and Ohio Canal towpath in Georgetown, a new rear façade and addition to the 2‐story brick structure provide expansive views to the C&O Canal and National Historic Park (Mule Yard). Rotating the central stair allows visitors to flow through the reception area into the center co‐working lounge space. A new rear conference room overlooks a green roof at the addition below. Private offices along the second floor provide a variety of spaces united by a trio of skylights above the stair. The basement is lowered up to 7 feet from the original elevation to create a light-filled subterranean office space with open workstations and a kitchenette. A new basement-level addition transforms the site, adding a second conference room with a skylight that opens the building to the east toward the C&O National Historic Park. New landscaping welcomes outdoor meetings and gatherings under the large magnolia tree. The front on Thomas Jefferson Street received a comprehensive preservation plan, including structural repairs, new windows, and brick repointing.