Harbor Group International LLC

Exterior shot of 500 North Gulph Road, a five-story office building in King of Prussia, Pa.

Harbor Group Buys Philly Office Asset

The property is entirely leased to one tenant, serving as its headquarters.

CPE_Premium_PropertyMgtGuide_2026_Feature_Post

Commercial Property Operators’ Monthly Action Plan

A month-by-month guide to keeping your commercial properties running smoothly, covering maintenance, tenant relations and seasonal priorities.

A photo of 51 West 52nd St.

Law Firm Inks 170 KSF Lease at Manhattan Trophy Tower

Harbor Group International landed the 15-year agreement at this iconic property.

Exterior shot of 55 Broadway, a 32-story 358,000-square foot office tower in Manhattan's Financial District.

Harbor Group Inks 2 Leases in Lower Manhattan

The two tenants will occupy the 14th and 29th floor at the tower.

The Restoration of 51W52, featured image

How Harbor Group Revived Black Rock, Saarinen’s Manhattan Landmark

A new chapter has begun following a $128 million renovation. President Richard Litton reveals behind-the-scenes details.

1520 First Avenue Rendering

Lendlease, Extell Top Out Manhattan MOB Tower

The 30-story development is scheduled for completion in 2025.

51 W 52nd. St.

Harbor Group Completes $128M Renovation of Manhattan Landmark

Black Rock is the only skyscraper designed by renowned architect Eero Saarinen.

1520 First Ave.

Extell Development Lands $425M for Manhattan MOB

Scheduled for completion in 2025, the project will rise on the Upper East Side.

World Trade Center, 101 W. Main St., Norfolk, Va.

Harbor Group International Sells Landmark Asset

This property in a major Virginia market traded for the first time since 2008.

CBS Building Sells for $760M

The Manhattan landmark traded for the first time since its 1960s completion.