Google has leased the majority of 500 North Capitol St. NW, a 231,000-square-foot, nine-story office building near Union Station in Washington, D.C. The block backfills departing law firm McDermott Will & Schulte. Interior construction is expected to begin within the next few months.
The lease is a consolidation. Google plans to combine multiple existing Washington offices into the building over several years, and is expected to release roughly 100,000 square feet at 25 Massachusetts Ave. NW. That single give-back equals 43% of the new building's total size, before accounting for whatever other leases roll into the consolidation.
In May 2026, the same tenant was reported to be reducing Washington office space as it redirected spending toward artificial intelligence and data center capital. The August lease does not reverse that decision. It implements it.
Consolidation leases produce the cleanest-looking absorption statistics in commercial real estate and the least reliable ones. The signed block is counted immediately, in one building, with press coverage. The space coming back is counted later, quietly, across three or four other buildings, usually at expiration rather than by early termination. A submarket can post strong absorption in a quarter where its largest tenant reduced occupancy.
The proximity logic is real and worth separating from the footprint logic. Union Station puts the tenant minutes from the Capitol, and Nvidia separately took downtown Washington office space this year. AI companies are buying adjacency to regulators. They are not buying desks.
Implications. Underwrite consolidation leases on net portfolio square footage, not on the signed block. For the owner of 500 North Capitol this is close to a best case: investment-grade credit, long term, heavy tenant investment in interiors. For every other Washington landlord with a Google lease expiring inside the consolidation window, this is a vacancy notice with a multi-year fuse.
Key Takeaways
- When one tenant signs one big lease and vacates three small ones, that is not absorption — it is a haircut with good press.
- The give-back schedule, not the signed block, is the number that changes your rent roll.
- AI-sector tenants near the Capitol are buying location, not growth in total occupancy.
The Real Deal — Google gobbles more office space, consolidating in DC, Aug 24 2026 · CoStar News — Google to consolidate DC operations near US Capitol, Aug 24 2026 · Commercial Real Estate Direct — Google Inks Large Lease at D.C. Office Building, Aug 25 2026
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