With housing affordability squeezed, this apartment trend is surging By Holly Duchmann - February 18, 2025 FacebookTwitterLinkedinEmailPrint Entering 2021, there were 12,100 office-to-apartment units in the U.S. conversion pipeline. Fast-forward to 2025, and that figure is now 70,700—an increase of 484% in just four years, Fast Compa… Already an INSIDER? Sign in.