Though not quite a record low, housing supply is still far from healthy in the Puget Sound region. Year over year, months of supply dropped 42% to 0.57 and 27% to 0.36 in King and Snohomish counties, respectively. The East of Lake Sammamish MLS map area had the lowest months of inventory for King County, at 0.16; Belltown/Downtown had the highest, at 2.41. King County condo supply was higher, at 0.94 months of supply, than single-family housing supply, at 0.47. The Southwest Snohomish County MLS map area had the lowest months of inventory for Snohomish County, at 0.25, and Northeast Snohomish County had the highest, at 0.49. Snohomish County condo supply was lower, at 0.24 months of supply, than single-family housing supply, at 0.39.

Multifamily permits jumped again in King County—a 113% increase over the average for the last 12 months. King County was joined this month by a spike in Pierce County multifamily permits (247% over average) and modest growth in Snohomish County multifamily permits (8% over average). 51% of housing permitted for the month in the three-county region was in buildings in King County with five or more units. Two-unit building permits are also up 87% over average in King County, possibly due to local ADU policy reforms. Single-family permits remain fairly stable, with slight month-over-month increases in Snohomish and Pierce that are nonetheless at or below the 12-month average for those counties.

King County multifamily construction is on the upswing after three months of depressed permits following the implementation of the 2018 Energy Code. 91.7% of those multifamily units—and all of the multifamily growth in King County—are in buildings with five or more units; permits for two- to four-unit housing remain low. King County single-family permits have also hit a high for the year, although it is slightly lower than permit numbers at the same time last year. With less than one month of supply in both King and Snohomish counties, more housing production is desperately needed.