Data Centers Are Giving Downtown Real Estate a Second Life, If You Know What You’re Looking For

How AI-driven demand for compute is turning underused downtown office stock into a new asset class, and what that means for owners still waiting for offices to come back.

Every downtown office tower I’ve underwritten in the last two years has the same problem on paper: too much vacancy, too much deferred capex, and a rent roll that assumes a return-to-office story nobody actually believes anymore. And every one of them has the same asset hiding in plain sight, risers, floor loads, and power capacity built for a much denser era of computing than most owners remember they’re sitting on.

That’s the trade I think this cycle rewards: not chasing greenfield data-center land in the exurbs, but looking hard at the office stock everyone else has already written off.

“The best compute site in a lot of downtowns is the office tower nobody wants to lease anymore.”

What actually pencils for conversion

Not every tower qualifies. The floor plates that work are the deep, column-light ones built in the 70s and 80s for trading floors and back-office operations, the same bones that make them hard to convert to housing are exactly what make them good for racks. Add existing utility feeds sized for a bigger tenant base than the building has today, and the retrofit math starts to look a lot better than a ground-up build in a market where power interconnection queues now run years long.

We’re underwriting these the same way we underwrite everything else on the platform: what’s the downside if the AI-infrastructure demand curve is wrong, and does the site still have value as office, storage, or light industrial if it is? A tower with real bones answers that question. A speculative shell in a market with no fiber backbone doesn’t.

The second life is the point

Cities need these buildings to do something other than sit half-empty. An occupied compute facility still pays property tax, still employs security and facilities staff, and still anchors foot traffic for the ground-floor retail that’s been struggling since 2020. It’s not the office tower it was built to be, but it’s not a write-off either. That’s the second life, and I think it’s a bigger part of this decade’s real estate story than most of the industry is pricing in yet.