535 Park Avenue
535 Park Avenue is a pre-war cooperative apartment building located at the north-east corner of 61st Street and Park Avenue, in the Lenox Hill neighborhood of the Upper East Side in Manhattan. It was constructed in 1910 and was designed by architect Herbert Lucas.

Architecture 
Its architectural design and decoration was described as both Georgian and Colonial style at the time of its completion. Herbert Lucas used similar architectural features from 24 Gramercy Park South, a building he designed, including the splayed lintels, simple brick and half-oval balconies.

A characteristic feature of this particular building is the white glazed terra-cotta of the two lower floors that contrasts with the red brick from the upper floors. Some critics were offended by this contrast, denouncing the terra-cotta as “cheap finery” and qualifying the building as “Palazzo Spotti.”

History 

The project started when the site at the corner of 61st Street and Park Avenue was acquired in early 1909 by a corporation known as Number 535 Park Avenue. The project was viewed as a step to reimprove the north section of Park Avenue.

The construction project was unusual at the time in the sense that it was led by a corporation of its future owners instead of being led by a real estate developer. The future owners were organized as a housing cooperative, which was uncommon at the time. Unlike contemporary co-op buildings where most of their units are owned, in early co-op buildings half of its units were being rented by the owners.

Residents 
Notable residents include American painter Lydia Field Emmet.

References 

Residential buildings completed in 1910
Condominiums and housing cooperatives in Manhattan
Upper East Side
Park Avenue
Residential buildings in Manhattan