Mark Hallum

Mark Hallum covers leasing, sales and everything in between for Commercial Observer with a focus on New York City. In the past, he has covered transportation, politics and crime on the local level.

Mark Hallum @markuusan
Global Holdings Chair Eyal Ofer and 25 Kent in Brooklyn.
Office · Leases
New York City

Coworking Firm Mindspace Adds 12K SF at 25 Kent Avenue

By Mark Hallum
Jeffrey Reder of CenterSquare (top), James Bury of ESAS, and an aerial view of industrial warehouse.
Industrial · Finance
National

CenterSquare, Esas Invest $50M to Buy Small Industrial Sites

By Mark Hallum
Catalyst Brands CEO Marc Rosen and an Eddie Bauer store display.
Retail · Finance
National

Eddie Bauer Files for Bankruptcy as Inflation, Tariffs Impact Profits

By Mark Hallum
People board an Amtrak train at Penn Station.
Industry · Policy
New York City

Trump Administration Plans to Appeal Court Order to Provide Gateway Funding

By Mark Hallum
SL Green Chairman and CEO Marc Holliday and 100 Park Avenue.
Office · Leases
New York City

Turner & Townsend Takes 24K SF at SL Green’s 100 Park Avenue

By Mark Hallum
A Falconeri store.
Retail · Leases
New York City

Italian Fashion Brand Falconeri to Open UES Store at 764 Madison Avenue

By Mark Hallum
A 'Now Hiring' sign is displayed in a business's window in Manhattan.
Industry · Capital Markets
New York City

Business Sector Hit Hard in January by Layoffs and Tightening Labor Demand

By Mark Hallum
Gateway Development Commission CEO Tom Prendergast (top), President Donald Trump, and workers constructing the Gateway Tunnel.
Infrastructure · Policy
New York City

Gateway Tunnel Work Stops, 1,000 Workers Sent Home as Federal Funds Withheld

By Mark Hallum
Equity Residential President and CEO Mark Parrell.
Residential · Capital Markets
New York City

Economic Conditions Drive Steady Earnings for Equity Residential in Q4 2025

By Mark Hallum
Newmark's William Cohen (top), Savitt Partners' Elliot Zelinger, and 11 East 26th Street.
Office · Leases
New York City

AI Platform Order.co Signs 12K-SF Sublease at 11 East 26th Street

By Mark Hallum
REBNY's Keith Decoster and pedestrians walking past a store in Soho.
Retail · Leases
New York City

SoHo Retail Rents Hit Decade-Long High, Lead Manhattan: Report

By Mark Hallum
466 Broome Street.
Office · Leases
New York City

Tech Firm WorkOS Signs 6K-SF Deal at 466 Broome Street

By Mark Hallum
Jamie Dimon, CEO of J.P. Morgan Chase, and 5 Manhattan West.
Office · Leases
New York City

JP Morgan Chase Expands by 139K SF at Five Manhattan West

By Mark Hallum
GFP Real Estate's Allen Gurevich (from top), Matthew Colavita and Matthew Mandell, and 247 West 37th Street.
Office · Leases
New York City

Heightened Security Signs 4K-SF Lease at 247 West 37th Street

By Mark Hallum
Michael Colacino.
Office · Players
New York City

JLL’s Michael Colacino Resigns Three Weeks After Promotion to CEO

By Mark Hallum
Industry City's Jeff Fein (top), Miss Circle's Isabel Deng, and Industry City in Brooklyn.
Office · Leases
New York City

Fashion Brand Miss Circle Expands to 16K SF at Industry City

By Mark Hallum
Ray Anderson.
Office · Players
New York City

Cresa Hires Ray Anderson to Succeed Tod Lickerman as CEO

By Mark Hallum