birddog

135 West 50th Street

Office-to-residential conversion project.

More office projects in New York

4 projects, last updated 4 days ago.

Planning
$41M office development in New York, New York, developed by Extell Development.
  • New York, New York
  • $41M
  • Office · New construction
  • Extell Development · developer + 2 more
Updated May 31, 2026 · 6:38 AM
Completed
30K SF, $5M office development at 629 Parsippany Road in Parsippany, New Jersey.
  • 629 Parsippany Road, Parsippany, New Jersey
  • $5M · 29,500 SF
  • Office · New construction
  • Newmark Associates CRE · broker
Updated May 30, 2026 · 6:50 AM
Completed
8K SF office development at 1261 Broadway in New York, New York, owned by Rosen Equities.
  • 1261 Broadway, New York, New York
  • 7,772 SF
  • Office · New construction
  • Rosen Equities · owner + 8 more
Updated May 28, 2026 · 8:02 AM
Planning
850K SF, $175M office development at 346 Madison Avenue in New York, New York, developed by SL Green Realty.
  • 346 Madison Avenue, New York, New York
  • $175M · 850,000 SF
  • Office · New construction
  • SL Green Realty · developer + 3 more
Updated May 28, 2026 · 8:01 AM

More news from New York

May 28, 2026

$40.6M Pre-Foreclosure Filing Hits Midtown Manhattan Site Targeted by Extell

DynamicDuo 55th LLC has filed a $40.6 million pre-foreclosure action against a building in Manhattan that Extell Development is reportedly seeking to acquire.

New York–Newark, NY
May 27, 2026

Abell Eskew Landau Leases 8K SF Office Space at Rosen Equities’ 1261 Broadway

Law firm Abell Eskew Landau has signed a 7,772-square-foot lease relocation at the 1261 Broadway office building in Midtown South.

New York–Newark, NY
May 27, 2026

SL Green and Mori Building Launch 850K SF Office Tower at 346 Madison Avenue

SL Green and Mori Building Co. form a joint venture to develop a 850,000-square-foot office tower at 346 Madison Avenue in Midtown Manhattan.

New York–Newark, NY
May 27, 2026

Sovereign Partners Closes $380M Acquisition of 534K SF 575 Fifth Ave Office Tower

New York City's top office transactions in April 2026 saw five major deals, including the $380 million sale of 575 Fifth Ave. in Manhattan.

New York–Newark, NY
May 26, 2026

Extell Development Closes $39M Acquisition of Midtown Manhattan Office Site for Redevelopment

Extell Development acquired the eight-story office building at 165 East 56th Street in Manhattan for $39 million, signaling potential future redevelopment.

New York–Newark, NY
May 26, 2026

Extell Development Purchases Manhattan Office Property Near Park Avenue Project

Gary Barnett’s Extell Development acquires the office building at 165 East 56th Street in Manhattan for an undisclosed sum.

New York–Newark, NY

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