Capitol Center, an Uptown Denver office complex that has been floated as a candidate for apartments, is headed to the auction block this summer. The two-building property, anchored by the 12-story Capitol Life Tower, is scheduled for an online sale from Aug. 17 to 19, with bids starting at $1.5 million. The low opening number underscores just how rough the market has become for older downtown office buildings and why lenders are increasingly opting for quick exits instead of long, expensive repositioning efforts.
According to BusinessDen, the complex at 1600 Sherman St. and 225 E. 16th Ave. totals about 155,000 square feet. Capitol Life Tower accounts for roughly 135,000 square feet, while the two-story Colorado Trust building adds about 22,000 square feet. The LoopNet listing reviewed by BusinessDen shows the tower is only about 18% occupied, and an attached two-story parking garage generates roughly $350,000 in net revenue each year. That same listing notes the Aug. 17 to 19 auction window and the $1.5 million opening bid, BusinessDen reports.
Market backdrop
CBRE's Q1 2026 data puts downtown Denver office vacancy at about 38.9%, according to CBRE. Local reporting has chronicled a wave of office-to-apartment dreams colliding with reality. The Denver Gazette notes that many proposed conversions run into tough layout constraints and steep construction costs. That mix of weak leasing demand and punishing conversion math has turned auctions and lender takeovers into a more common outcome for aging upper-downtown properties.
Property history and lender issues
BusinessDen reports that Harbor Associates bought Capitol Center in 2018 for roughly $29 million, and that ownership shifted to LOTW Capitol Center LLC in October 2024. Harbor principal Joon Choi told BusinessDen that "there was a note sale involved," suggesting that loan trouble played a role in the transfer. BusinessDen also cites Harbor's experience with the Symes building, a planned conversion that secured a $17 million DDA loan but later faced foreclosure and an ongoing lawsuit, as an example of how conversion plans can stall once financing gets rocky.
What buyers will weigh
Prospective buyers will be doing a careful balancing act, weighing conversion or renovation costs against limited current income and the site’s location near government and legal tenants. The listed parking revenue could provide some short-term cash flow while a new owner figures out a long-term strategy. Still, retrofitting deep office floorplates, threading in new plumbing, and meeting modern code requirements can push conversion budgets far beyond what that eye-catching starting bid might suggest.
The auction is set to run from Aug. 17 to 19, with details available in the online listing ahead of the sale. Whoever wins will be making a years-long repositioning decision in a market where upper-downtown office reuse remains a difficult and very expensive puzzle to solve.
