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Seattle building permits

Seattle permits residential alteration more than anything else, ahead of commercial alteration and single-family new build. Recent movement is concentrated in residential alteration, running 23% above its own prior quarter. What sets it apart is residential demolition — 4.2× as common here as in the average covered metro. Parcel-joined, with field-level data-quality flags throughout; older history via free signup or the API.
158,728 permits classified · field-DQ-cleared · refreshed nightly

165,723 permits in Seattle. Use Explore the data below for the filterable view.

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Where the value concentratesSeattle
Permit mix by segment
Reliable value by segment
Filing momentum
Prior 90d2,126
Last 90d2,303

+8% vs prior 90d

Based on filings in the source's current publication window — not the all-time indexed total.

LiveLast 10 days of permits · Parcel-joined · 23 IBC segments · field-level DQ flags
23 IBC segments tracked9 active in Seattle8 refreshed in the last 14 dayssee per-segment freshness →
index rebuilt yesterday

Top contractors in Seattle

Ranked by permits indexed · Each links to that contractor in Seattle
U Of W Building PermitCommercial Alteration595Seattle School District (a&s)Commercial Alteration519Seattle Parks DeptCommercial Alteration437Seattle Housing Auth GeneralResidential Alteration427City Of Sea F&fdCommercial Alteration322Amazon.comCommercial Alteration287Port Of Seattle EngineeringCommercial Alteration268Blanket: Bank Of America TowerCommercial Alteration219
Why this data is real

We classify permits into real segments — and label what we don't know.

Classified, not scraped

We read each permit's work-type, scope, and occupancy fields to place it in a real segment — so “commercial HVAC in Seattle” means real HVAC work, not a keyword match.

Parcel-joined + enriched

Every permit is joined to its tax lot and geocoded, with roof & HVAC sized — you see the building, not just the address.

— and we flag what we don't know

Coverage is labeled, missing fields show —, and where there are too few reliable filings to stand behind a value we publish —, never a fabricated number.

Seattle by segment

Sourced from the segment-distribution artifact · Each links to that segment in Seattle
Residential Alteration74,551Commercial Alteration41,672Residential New (Single-Family)20,031Residential Demolition13,316Commercial New Construction3,380Multifamily New Construction2,796Commercial Demolition2,595Industrial New Construction257Multifamily Alteration130

14 segments: no permits in window.

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Coverage: Live · refreshed nightly · Parcel-joinedDevelopers — query the permit API →Get Seattle permits via API or bulk export (Parquet / CSV) →