Jonathan Serko

425 Park Avenue
Leases  ·  Office
New York City

Private Equity Firm Hellman & Friedman Takes 28K SF at 425 Park Avenue

By Nicholas Rizzi
Premium
Rockefeller Center.
Leases  ·  Office
New York City

Rockefeller Capital Management Leases 64K SF at 45 Rock

By Liam La Guerre
Premium
1501 Broadway, also known as the Paramount Building.
Leases  ·  Office
New York City

Social Service Workers Union Moving to 22K SF in Times Square

By Liam La Guerre
Premium
498 Seventh Avenue.
Leases  ·  Office
New York City

Health Care Union Consolidating Offices in 580K-SF Move

By Liam La Guerre
Premium
1 Pierrepont Street (Photo: CoStar Group).
Leases  ·  Office

C&W Leaving Last Vestiges of Massey Knakal Behind in Brooklyn

By Liam La Guerre
Premium
Leases

Diligent Joins the ‘Family’ at 1385 Broadway

By Al Barbarino
Premium
Leases

Xerox Takes Additional 14,000 SF at 485 Lexington

By Al Barbarino
Premium
Leases

Mount Sinai and WESTMED Join Forces for 75,060 Square Feet at One Pierrepont Plaza

By Daniel Edward Rosen
Premium
Leases

First Spring Corporation Stay at 499 Park Avenue

By Daniel Edward Rosen
Premium
Leases

Mount Sinai Takes Downtown Brooklyn Space for New Outpost

By Daniel Edward Rosen
Premium