Midtown East

660 Lexington Avenue. Rendering courtesy of S20M.

660 Lexington Avenue Nears Completion in Midtown East, Manhattan

8:00 am on October 4, 2025 By Michael Young and Matt Pruznick

Construction is nearing completion on 660 Lexington Avenue, a 20-story residential building in Midtown East, Manhattan. S20M is the design architect, Zproekt Architecture is the project architect, and Rybak Development is the developer of the 233-foot-tall structure will span 52,558 square feet and yield 31 condominium units with an average scope of 2,123 square feet. The project will also contain 2,551 square feet of commercial space, 1,174 square feet of community facility space, and a cellar level. The property is alternately addressed as 133 East 55th Street and located at the corner of Lexington Avenue and East 55th Street.

City Council Approves 1,600-Foot Supertall for 350 Park Avenue in Midtown East, Manhattan

8:00 am on September 29, 2025 By Michael Young

On September 25, the New York City Council unanimously approved the construction of 350 Park Avenue, a nearly 1,600-foot supertall office skyscraper in Midtown East, Manhattan. Designed by Foster + Partners and developed by Vornado Realty Trust, Rudin, and Ken Griffin, the massive 62-story structure will yield 1.8 million square feet of Class A office space with a capacity of 6,000 employees. Griffin’s companies Citadel and Citadel Securities will serve as the anchor tenants, occupying at least 850,000 square feet. The 53,000-square-foot property is located between East 51st and 52nd Streets.

JPMorgan Chase Holds Gathering to Honor Construction Workforce at 270 Park Avenue in Midtown East, Manhattan

8:00 am on September 10, 2025 By Michael Young

Yesterday, YIMBY attended a special block party at the JPMorgan Tower, the company’s recently opened 1,389-foot-tall headquarters at 270 Park Avenue in Midtown East. Designed by Norman Foster of Foster + Partners and developed by Tishman Speyer, the 60-story supertall skyscraper yields 2.5 million square feet of office space with a capacity of 14,000 employees, and is the tallest structure in New York completely powered by hydroelectric energy. Adamson Associates was the architect of record , AECOM Tishman is the general contractor, and Gensler is the workplace designer for the $3 billion project, which occupies a full city block bounded by East 48th Street to the north, East 47th Street to the south, Park Avenue to the east, and Madison Avenue to the west.

346 Madison Avenue. Developed by Delv Holdings.

Rendering Reveals Proposed Skyscraper at 346 Madison Avenue, aka 44+Madison, in Midtown East, Manhattan

8:00 am on September 1, 2025 By Michael Young and Matt Pruznick

A conceptual rendering has been released for 346 Madison Avenue, aka 44+Madison, a proposed 41-story office skyscraper in Midtown East, Manhattan. Developed by Delv Holdings, the 643-foot-tall structure has the potential to become an 800,000-square foot tower with a Floor to Area Ratio (FAR) of 26.0, resulting in floor plates spanning between 19,000 to 22,000 square feet. The property is located at the corner of Madison Avenue and East 44th Street within the Greater Midtown East Rezoning District, and also includes the adjacent property at 11 East 44th Street.

219-229 East 42nd Street’s Office-To-Residential Conversion, Expansion Progresses in Midtown East, Manhattan

8:00 am on August 30, 2025 By Michael Young and Matt Pruznick

Work is progressing on the office-to-residential conversion and expansion of the former Pfizer headquarters at 229 East 42nd Street in Midtown East, Manhattan. Designed by Gensler and developed by Metro Loft Development and David Werner Real Estate Investments, the project involves the gut renovation and full re-cladding of the 33-story tower, along with the construction of a 19-story vertical expansion of the adjacent building at 219 East 42nd Street. The conversion will yield 1,600 rental apartments, with 25 percent reserved for affordable housing, as well as ground-floor retail space and 100,000 square feet of amenities. The abutting properties are located at the northwestern corner of East 42nd Street and Second Avenue.

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