Denver’s tallest building is in financial trouble, speaks volumes for downtown

If you’ve ever looked at the Denver skyline and thought, “That big one in the middle looks like it’s doing just fine” — well, not so much. Republic Plaza, the 56-story tower at 370 17th St. that has been Colorado’s tallest building since 1984, is now in receivership after its owner defaulted on more than $230 million in loans.

The building’s owner, an entity tied to Brookfield Properties, failed to pay off the loan when it matured back in March. A judge signed off on appointing a receiver at the end of August, meaning a third party is now handling rent collection and expenses while the lender figures out next steps. And Republic Plaza isn’t just tall — it’s been considered Denver’s premier office building for the last 40 years. As one commercial real estate expert put it: “When your premier building goes into foreclosure or receivership in anticipation of foreclosure, it says a lot.”

The bigger picture? Downtown Denver’s office vacancy rate sat at 38.6 percent in the second quarter of 2026 — near historic highs. It’s a trend that’s been building (no pun intended) for a while, and it’s hitting older buildings the hardest. The silver lining, if you’re looking for one: if you’re a tenant shopping for office space downtown, there’s arguably never been a better time to cut a deal.