As borrowing costs rose and rent growth slowed, multifamily developers pulled back the reins in 2023. Nationally, the number of multifamily building permits sank 20.3% last year, according to the latest data from the U.S. Census Bureau. However, there are many metropolitan markets where activity has not slowed. In this deep dive, our research teams show which metros led the nation in multifamily permitting activity in 2023.