The Building at 1505–1509 Oak Avenue is a historic apartment building in Evanston, Illinois. The three-story brick building was built in 1925. The building is L-shaped with a half courtyard, a relatively common apartment layout in Evanston. Samuel N. Crowen, who also designed 1450-56 Oak Avenue and the Abbey Garth Building at 400 Lee Street, was the architect of the building. The building's design features limestonepilasters separating its windows, limestone quoins, pilasters and a pediment around the entrance, and a brick parapet.[2][3]