Washington, D.C.

Google Poised to Gobble Up Union Station Office Tower

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Published on May 16, 2026
Google Poised to Gobble Up Union Station Office TowerSource: Google Street View

Google is reportedly closing in on a full-building lease at 500 North Capitol Street NW, a roughly 231,000-square-foot office tower just a block from Union Station. The potential deal would be a significant vote of confidence in the transit adjacent Capitol Hill office market, where large, modern blocks of space are increasingly tough to find. If it lands, the lease could shake up lunchtime foot traffic and retail demand around the busy train hub.

Boston Properties lists 500 North Capitol at about 231,000 square feet and highlights a rooftop terrace along with easy access to Metro and Amtrak service at Union Station. The real estate investment trust bought the building in 2010 and pitches it as a Class A, commuter friendly home for both federal agencies and private sector tenants.

According to the Washington Business Journal, Google is expected to take the entire building at 500 N. Capitol St. NW and would backfill space that a large law firm plans to vacate. The outlet cited people familiar with the talks and noted that, as of its reporting, a lease had not yet been finalized.

Google's broader D.C. shuffle

Alphabet has been rethinking its Washington footprint. In April, CoStar reported that Google is expected to give up roughly 100,000 square feet at 25 Massachusetts Ave NW as it shifts more spending toward artificial intelligence and data center projects. That consolidation could add to sublease supply and create a fresh incentive for Google to concentrate teams in a single, transit oriented building close to the Capitol.

What it means for the D.C. office market

Large, move in ready blocks are increasingly rare in the District. Cushman & Wakefield reported in its Q1 2026 office snapshot that vacancy nudged up to 23.2 percent even as the best quality buildings remained relatively tight. A single tenant stepping in to take an entire Class A tower near Union Station would stand out in that context, further constraining top tier availability and likely lifting demand for nearby retail and commuter oriented services.

For now, there has been no formal lease filing or public announcement. If negotiations move forward, any completed deal is likely to show up first in refreshed leasing materials and future local market reports.