Washington building permits
We index 166,386 building permits across 1 Washington metro — Seattle — classified into real segments, parcel-joined, with field-level data-quality flags.
The largest segments statewide are Residential Alteration (45%), Commercial Alteration (25%), Residential New (Single-Family) (12%).
Metros we cover in Washington
- Seattle166,386
Historical coverage
These Washington sources were discontinued — their permits remain queryable, but they aren't counted in the live total above.
Counts are live from the classified index, refreshed nightly. Each metro links to its full breakdown — segments, permit types, and contractors.