Chicago's $19M conversion sale prices a basis, not a market

An investor paid about $19 million this month for a Chicago building that had been switched from loft offices to apartments, and CoStar News reports the figure as an early price on a completed office-to-apartment conversion just as such projects gain traction nationally. The coverage names two firms, CIO Acquisitions & Development and Blatteis & Schnur, Inc., without saying which one bought, which one sold, how many apartments the building holds, or what the buyer paid per unit.

Absent that arithmetic, the $19 million is a single transaction with no denominator, and in this trade the omission matters more than usual. Conversions resist comping because the cost to deliver apartments sits in each building's own bones — floor plates, window lines, and structural condition determine how much work the switch requires, so two projects a few blocks apart can carry all-in bases that share almost nothing. The buyer at $19 million underwrote one set of those conditions, and nothing in the reported price describes where converted apartments actually clear in that submarket.

The more useful read runs through the capital stack: maturing commercial real estate debt is being rolled up rather than repriced down, and a conversion is one of the instruments of that roll — a sponsor writes new equity against a written-down office basis instead of accepting what selling the loan would produce. At roughly $19 million, the buyer is likely paying for a cost position — land and structure marked off the office market, plus the hard cost of the build-out — with the stabilized yield left to arrive later. That is why the pipeline keeps filling while apartment rent growth stalls and cap rates reset upward.

That cost position is meant to bridge a gap that belongs to the back half of the decade. Multifamily capital is being underwritten today against the 2028-29 supply shortfall, and conversions are one of the few levers that add units without waiting on ground-up construction to pencil. A building bought at a discount to replacement cost is a defensible way to hold that thesis, but a poor way to argue the thesis is already being paid for.

A second completed conversion trading with its unit count and rents attached would settle the pricing question, turning a cost basis into a yield and a yield into a market. Until one arrives, Chicago's $19 million gets quoted at cost, and the next conversion brought to market should expect the same treatment.