Clifton Park Valve House, also known as the Lake Clifton Gate House or Lake Clifton Valve House, is a historic building located in a northeast area known as Clifton Park of Baltimore, Maryland. It is a massive octagonal stone gatehouse featuring large Romanesque archways that alternate with Gothic style windows that once contained stained glass. It was constructed in 1887 by the Baltimore City Water Department. It also features a turret, atop an intricate tile roof supported by a complicated system of iron trusses.