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
Andy Byford.
Industry · Policy
Midtown

Trump Administration Kicks Off Master Developer Search for Penn Station

By Mark Hallum
One Grand Central Place, NY, NY. Owner Empire State Realty Trust, Anthony Malkin.
Office · Capital Markets
New York City

ESRT Closes Q3 2025 With Strong Fundamentals But Muted Leasing Numbers

By Mark Hallum
Mayor Eric Adams and an illustrative vision of Hillside Avenue and 150th Street in Jamaica, Queens.
Residential · Policy
New York City

NYC Council Approves Jamaica, Queens, Plan to Create 12K New Homes

By Mark Hallum
JB&B Managing Partner Walter Mehl, Jr. and an illustration of two people shaking hands over a signed contract.
Industry · More
New York City

Trinity Consultants Acquires Engineering Firm JB&B for Undisclosed Amount

By Mark Hallum
The Long Island City waterfront and Mayor Eric Adams.
Industry · Policy
New York City

City Council Land Use Committee OKs OneLIC Rezoning

By Mark Hallum
A development site at 140 Fulton Street.
Industry · Investments & Sales
New York City

Bank Hapoalim Sells 140 Fulton Street to Rivington Company for $26M

By Mark Hallum
Alexandria Real Estate Equities and founder Joel S. Marcus
Industrial · Capital Markets
New York City

Alexandria Records Another Tough Quarter Despite a Record Lease

By Mark Hallum
Brian Katz of Katz & Associates.
Retail · Leases
New York City

Brian Katz of Katz & Associates: 5 Questions

By Mark Hallum
Davis Companies' Andrew Kurd (top), ATCO Properties' Kate Hemmerdinger Goodman (bottom), and 630 Third Avenue.
Office · Investments & Sales
New York City

Davis Companies, TIG Recap Atco’s 630 Third Avenue With $50M Equity Investment

By Mark Hallum
Sushi presented on a plate and Empire State Realty Trust's Fred Posniak.
Hospitality · Leases
New York City

Omakase Restaurant Sora Signs 14K-SF Lease at ESRT’s One Grand Central Place

By Mark Hallum
NEW YORK, NEW YORK - OCTOBER 22: New York Mayor Eric Adams sits with Independent candidate former New York Gov. Andrew Cuomo after Cuomo participated in the second debate for the upcoming mayoral election on Wednesday evening during the game between the New York Knicks and the Cleveland Cavaliers at Madison Square Garden on October 22, 2025 in New York City.
Industry · Policy
New York City

Adams to Endorse Cuomo for Mayor, Strengthening Odds Against Mamdani

By Mark Hallum
From left: RIPCO Real Estate’s Michelle Abramov, Executive Managing Director and Greg Batista, Vice President. Daycare center.
Retail · Leases
New York City

Day Care Center Ivy Prep Signs 15K-SF Lease in Staten Island

By Mark Hallum
Newmark's Ira Rovitz (top), CBRE's Paul Haskin (bottom), and 55 Water Street.
Office · Leases
New York City

Tech Firm Verra Mobility Signs 57K-SF Sublease at 55 Water Street

By Mark Hallum
Jen Yashar.
Office · Leases
New York City

Jen Yashar of Gibson Dunn: 5 Questions

By Mark Hallum
JPMorgan Chase CEO Jamie Dimon speaks at the opening of 270 Park Avenue.
Office · Development
New York City

JP Morgan Chase’s 270 Park Avenue Opens, Six Years and $4B Later

By Mark Hallum
567 Fulton Street.
Retail · Leases
New York City

Michelin-Starred Dumpling House Din Tai Fung Takes 20K SF for Second NYC Location

By Mark Hallum
ASG Equities CEO Raymond Gindi and 423 88th Street, Brooklyn.
Retail · Investments & Sales
New York City

ASG Equities Sells 423 88th Street in Bay Ridge for $28M

By Mark Hallum