The residence is a 1750sf (162sm) apartment building from 1909 in a neoclassical style. The apartment overlooks Central Park. The original apartment, as was typical for apartments in Manhattan from this time, was divided into small rooms with little to no relation to one another. ACHA’s design drastically reconfigured the spatial structure of the apartment by creating an enfilade of rooms along the park edge of the apartment. The design expanded the perception of space into sequences of public and private rooms. Several years later, when a portion of the apartment next door became available, the owner had ACHA continue the design into the adjacent apartment. The detailing and material finishes of the renovation respected the period of the building, while integrating a centralized air-conditioning system. During the renovation, ACHA worked with the Landmarks Preservation Commission to ensure that the building’s façade was uncompromised by the new mechanical equipment.