Newmark Arranges 53,000-SF Office Renewal with National Trade Association NCTA at 25 Mass in D.C.

October 8, 2025 9:00 AM

Newmark announces that the Company has arranged a 53,000-square-foot office lease renewal with NCTA, a trade association representing the broadband and cable industries in the United States, at 25 Massachusetts Avenue NW in Washington, D.C. NCTA signed a long-term renewal to continue occupying the building’s first and second floors, reaffirming its nearly two-decade presence at the property.

“NCTA’s long-term renewal at 25 Mass reflects the enduring appeal of the property and our shared commitment to maintaining premier office environments within one of Washington’s most connected corridors,” said Skylar Huth, Director of Workplace, Retail & Mixed-Use at Nuveen, a TIAA Company. “We remain focused on delivering spaces that meet the evolving needs of today’s leading organizations while upholding the long-term value and quality that define our portfolio.”

Newmark Vice Chairman Doug Mueller, Executive Managing Director Edwin Clark and Associate Blaire McGavin serve as the exclusive leasing agents for the property on behalf of ownership Norges Bank Investment Management (NBIM). Nuveen, a TIAA Company is the asset manager.

“NCTA has been an original tenant at 25 Mass, and their long-term renewal speaks to the strength of the property and the broader D.C. office market,” said Mueller. “They’re a national trade association maintaining their full footprint—a strong signal of confidence in both the building and the workplace.”

Ownership recently completed a series of enhancements at the 350,000-square-foot landmark property, including a reimagined glass entry, new lobby, tenant lounge and a state-of-the-art conference center that can accommodate up to 127 people. Strategically located one block from Union Station, 25 Mass offers premier connectivity and a robust tenant roster anchored by Google’s 100,000-square-foot offices. Additional tenants include General Motors, American Iron & Steel Institute and NCTA.

Remaining availability at the property totals 35,000 square feet on the sixth floor, offering a range of configurations—from boutique suites to a 24,750-square-foot concourse-level space—providing tailored flexibility within a Class A framework.

About Newmark
Newmark Group, Inc. (Nasdaq: NMRK), together with its subsidiaries (“Newmark”), is a world leader in commercial real estate, seamlessly powering every phase of the property life cycle. Newmark’s comprehensive suite of services and products is uniquely tailored to each client, from owners to occupiers, investors to founders, and startups to blue-chip companies. Combining the platform’s global reach with market intelligence in both established and emerging property markets, Newmark provides superior service to clients across the industry spectrum. For the twelve months ended June 30, 2025, Newmark generated revenues of over $2.9 billion. As of June 30, 2025, Newmark and its business partners together operated from 165 offices with over 8,400 professionals across four continents. To learn more, visit nmrk.com or follow @newmark.

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