The Astor on the Lake (also Astor Hotel) is a low-rise building located in the Yankee Hill (East Town) neighborhood of downtown Milwaukee, Wisconsin. It is listed on the National Register of Historic Places. Designed by architect Herbert Tullgren in Classical Revival style, the Astor Hotel was built in 1920 by developer Oscar Brachman for hotel tycoon Walter Schroeder. The building was originally U-shaped in plan, but an L-shaped addition in 1925 made the building into the E-shape seen today. The building has eight floors and stands 102 feet (31 m) tall.