1228 Madison Avenue #3

1228 Madison Avenue stands on the avenue near 89th Street, in the part of the Upper East Side known as Carnegie Hill. The neighborhood is named for Andrew Carnegie, whose 1901 mansion still holds its corner a few blocks north at Fifth Avenue and 91st Street, and the surrounding streets keep the limestone-and-brick character that name implies. Central Park and the Guggenheim Museum are each one block away.

The address falls inside the Upper East Side Historic District, the protected zone the city designated in 1974 and expanded in 1993. That designation is why the avenue around the building still reads as prewar, and it set the terms a new building here would have to answer to.

1228 Madison Avenue is new construction, completed in 2021 to designs by Robert A.M. Stern Architects, with project partners Michael D. Jones and Paul L. Whalen. The facade pairs shot-sawn limestone with heathered gray brick, detailed with jack arches, Juliet balconies, and arched and oxeye windows that answer the prewar limestone-and-brick buildings around it. RAMSA and Kelly Behun Studio, the firm behind the interiors, are both AD100 practices.

CBSK Ironstate developed the building, a partnership of CB Developers, SK Development, and Ironstate Development. RAMSA conceived the house as a vertical village, a stack of full-floor, duplex, and triplex homes rather than a uniform run of units, so that each residence reads as its own floor of the building.

Residence Three is one of the full-floor homes, 3,136 square feet entered through a private elevator vestibule that serves the apartment alone. It holds four bedrooms and three and a half baths across a single floor, with the rooms drawn to the proportions RAMSA set for the building.

Custom stained white oak runs underfoot, milled and set in a chevron pattern. The interiors are the work of Kelly Behun Studio, the second AD100 firm on the project, carrying the building's prewar reference through the finishes of the home itself.

1228 Madison Avenue is a condop, which pairs the ownership structure with full building service: a full-time doorman, a concierge, a gym, and a roof deck. The position puts Central Park and the Guggenheim each a block from the door, inside one of the most protected residential stretches on the Upper East Side.

Residence Three is listed by Maria Velazquez and Karen Ordonez of Corcoran. It is a full floor by Robert A.M. Stern Architects and Kelly Behun Studio, two AD100 names, delivered new in a neighborhood that rarely turns over new construction at this address.

If you would like to feature your property on The Full Ask, please visit our submissions page. Featured properties are introduced to our community of agents, designers, and buyers who care about well-considered real estate.