State building permits

Washington building permits: new housing

37,987 new housing units permitted in the 12 months to September 2026, +9% on the year before, with $10.1B of construction value.

Plus 2,000 commercial and multifamily projects in the last 90 days in Seattle, Tacoma, where we track every permit.

New housing units permitted per month

Commercial permits

Commercial construction in Washington cities we cover

2,000 commercial and multifamily projects in the last 90 days, from each city’s own permit data.

Rolling 90 days, from each city’s own permit data.

By declared value; contractors named 30 days after the first permit.

Building size	Buildings	Units	Value
Single-family	17,363	17,363	$6.6B
2 units	643	1,286	$323M
3–4 units	166	605	$140M
5+ units	564	18,733	$3.1B

Year	Housing units	In 5+ unit buildings	Value
2025	34,913	15,001	$9.8B
2024	37,778	16,358	$10.4B
2023	37,097	16,832	$9.5B