Standard coverage · Seattle
Seattle, WA permit history & home risk data
Seattle is covered by a live query against the city's public Building Permits dataset, matched by address as you search.
Year built is optional, but it's what unlocks the code-era risk exam for Seattle addresses.
What Tarn covers in Seattle
Source: City of Seattle Building Permits (Socrata dataset 76t5-zqzr), queried live
| System | Records since |
|---|---|
| Building permits | 20+ years of history |
- Pulled live from the City of Seattle's public permit system on every search, not a static extract — coverage reflects whatever the city has published as of your search.
- Matched by address prefix against the city's combined address field.
Seattle frequently asked questions
How deep is Seattle, WA permit data on Tarn?
Seattle is covered by a live query against the city's public Building Permits dataset, matched by address as you search.
Where does Tarn's Seattle permit data come from?
Tarn's Seattle permit data comes from City of Seattle Building Permits (Socrata dataset 76t5-zqzr), queried live.
How far back does Tarn's Seattle coverage go?
Coverage varies by system in Seattle: Building permits (since 20+ years of history).
Does Tarn check code-era risks like lead paint or old wiring in Seattle?
Yes. When you search a Seattle address and enter the year it was built, Tarn checks it against national code-era risk factors — lead paint, electrical panel age and wiring type, plumbing material, and more.
Is Tarn free to use in Seattle?
Yes — Tarn is free while we're building it. In exchange, we ask what wasn't useful.
Look up a specific Seattle address
Free while we're building. Tell us what's missing and you keep full access.