Gilsey House Cooperative , 8-story Second Empire-style cast-iron residential building completed in 1871. Designed by Stephen Decatur Hatch as a hotel for Peter Gilsey, it opened as the Gilsey House Hotel in 1872. The ornate exterior features a facade of white-painted cast-iron, with fluted columns, a variety of fenestration including round-arched windows and both rounded and triangular pediments, and multi-story mansard roof.