Upper East Side

The Metropolitan Museum of Art Breaks Ground on The Oscar L. Tang and H.M. Agnes Hsu-Tang Wing

8:00 am on September 16, 2026 By Michael Young and Matt Pruznick

Work has officially broken ground on the Oscar L. Tang and H.M. Agnes Hsu-Tang Wing, a multistory expansion of the Metropolitan Museum of Art on Manhattan’s Upper East Side. Designed by Frida Escobedo with Beyer Blinder Belle as the executive architect, the addition will span 126,000 square feet, including 71,000 square feet for The Met’s 20th- and 21st-century art collection. The annex will also contain 18,500 square feet of outdoor space, and improved circulation and sustainability. The new structure will rise from within the museum’s existing footprint, replacing the aging 120,000-square-foot wing that currently sits at the southwest corner of the site.

1655 First Avenue. Designed by S. Weider Architect PC.

1655 First Avenue Nears Completion on Manhattan’s Upper East Side

7:30 am on September 9, 2026 By Michael Young and Matt Pruznick

Construction is nearing completion on 1655 First Avenue, a 23-story mixed-use residential development on Manhattan’s Upper East Side. Designed by S. Wieder Architect for Cheskel Schwimmer of Chess Builders, the project consists of two conjoined structures standing 235 feet tall. The buildings will span a combined 193,000 square feet and yield 198 rental units with an average scope of 725 square feet, as well as ground-floor commercial space, a cellar level, and a 30-foot-long rear yard. The 12,000-square-foot property is alternately addressed as 355 East 86th Street and located at the northwest corner of First Avenue and East 86th Street.

The Langdon Nears Completion At 288 East 88th Street on Manhattan’s Upper East Side

7:30 am on September 4, 2026 By Max Gillespie

Construction is nearing completion on The Langdon, a 24-story residential building at 288 East 88th Street on Manhattan’s Upper East Side. Designed by Hill West Architects and developed by Alchemy-ABR Investment Partners in collaboration with Azur Holdings Management LLC and in partnership with The Carlyle Group, the 350-foot-tall structure will span 96,543 square feet and yield 45 rental units. Beyond residential space, the building will also feature 2,507 square feet of ground-floor commercial space and a cellar level. The property is located at the southwest corner of East 88th Street and Second Avenue.

171 East 86th Street. Designed by Skidmore, Owings & Merrill.

Maison171’s Exterior Progresses at 171 East 86th Street on Manhattan’s Upper East Side

8:00 am on August 25, 2026 By Michael Young and Matt Pruznick

Exterior work is progressing on Maison171, a 17-story residential building at 171 East 86th Street on Manhattan’s Upper East Side. Designed by Skidmore, Owings & Merrill and developed by ZD Jasper, the 210-foot-tall structure will yield 24 condominium units in three- to four-unit layouts with an average scope of 2,280 square feet. The mixed-use project will also include 2,300 square feet of ground-floor retail space and two cellar levels. Archimeara is the architect of record and Elie Saab is the designer of the residential interiors and amenities for the property, which is located at the northwest corner of East 86th Street and Third Avenue.

655 Madison Avenue. Photo by Michael Young.

Excavation Begins for 1,162-Foot Mixed-Use Supertall at 655 Madison Avenue on Manhattan’s Upper East Side

8:00 am on July 30, 2026 By Michael Young and Matt Pruznick

Excavation is underway at 655 Madison Avenue, the site of a 74-story mixed-use supertall skyscraper on Manhattan’s Upper East Side. Designed by Beyer Blinder Belle and developed by Extell, the 1,162-foot-tall structure will span 764,698 square feet and yield 154 condominium units with an average scope of 3,091 square feet. The project will also include approximately 233,000 square feet of office and retail space on the lower levels. The property is located at the northeast corner of Madison Avenue and East 60th Street.

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