Colony Tower Complex

The Colony Tower Complex is a decorative water tower, with a gate and gatehouse, located at 6503 Dyke Rd. in Pearl Beach, Michigan. The tower was listed on the National Register of Historic Places in 1994, and the gatehouse joined it in 1995.
In early 1926, Detroit developer Will St. John platted an exclusive residential subdivision known as "The Colony," marketed to well-off professionals as a secluded neighborhood with ready access the Lake Saint Clair. The subdivision had 147 lots. That same year, St. John had the Chicago Bridge & Iron Company erect a water tower to service the subdivision. As an advertising gimmick, St. John clad the tower with a lighthouse-like outer skin, even adding a beacon on top. He also constructed a gatehouse nearby.

Wikipedia