Henry Janeway Hardenbergh (1847–1918) designed two of the most architecturally significant residential trophies in Manhattan: the Dakota (1884) at 1 West 72nd, the earliest luxury apartment building on the Upper West Side and arguably the most culturally iconic apartment building in the city; and the Plaza Hotel (1907) at Fifth Avenue and Central Park South, whose residential conversion in 2007–2008 created the Plaza Condominium. Hardenbergh's interiors set the standard for 13-foot ceilings, formal entry galleries, and multiple wood-burning fireplaces that defined the Gilded Age apartment program — features that, where preserved, continue to drive a measurable premium in the resale market 140+ years after the Dakota's completion.
Buildings designed by Henry Janeway Hardenbergh
The drawings are public. The rest isn't.
How these buildings have actually traded, which lines deliver what the plans promise, and how each board handles financing and approvals.

