Building Permit Records in Seattle, WA

Characterized by early 20th-century Craftsman homes and modern infill, Seattle's dynamic housing market and seismic considerations make permit review critical. Understanding the history of basement conversions or structural improvements helps buyers and remodelers ensure safety and compliance in this ever-evolving city.

Permit searches in Seattle frequently uncover details on foundation work, accessory dwelling unit (ADU) conversions, and significant structural changes.

192K+
permit records in the official Seattle-area datasets we search
Addition/Alteration · Environmentally Critical Area Exemption
most common permit types on file
2026
records current through 2026-07-14
Looking up a specific Seattle address? Get the full permit & property report free.
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Common Seattle permit types & fees

Typical Washington fee ranges by work type. Actual fees depend on project valuation.

Permit typeTypical fee
Kitchen / bath remodel
Required once plumbing, gas, or electrical is moved.
$310–$730
Electrical
New circuits, panel upgrades, rewiring.
$70–$430
Plumbing
Repipes, water heaters, fixture relocations.
$70–$370
Room addition / structural
Framing, foundation, and square-footage changes.
$610–$2,680
Roofing
Tear-off and re-roof; some cities exempt minor repairs.
$180–$610
HVAC
New systems, ductwork, and condenser swaps.
$100–$390

What's on the record

Pulled permits
Every permit on file for the address — additions, electrical, plumbing, roofing — with dates and status.
Unpermitted-work signals
Gaps between the home's history and its permits flag work that may never have been inspected.
Ownership & sales
Owner of record and transfer history, so you know who pulled what and when.
Inspections
Whether permitted work in Seattle actually passed final inspection.

FAQ

How do I look up building permits in Seattle?

Enter the property address on Reno HomeIQ — we pull Seattle, Washington public permit records, inspections, ownership, and sale history into one report, so you don't have to search the Washington portal by hand.

Can I tell if work on a Seattle home was permitted?

Yes. The report lists the permits on file for the address, which is how you spot potential unpermitted additions, electrical, or plumbing work before you buy or remodel.

How much are permits in Seattle?

Seattle permit fees vary by scope — a remodel permit typically runs $310–$730, with electrical, plumbing, and structural permits priced separately. Local fees track Seattle's 122% cost level.

Is the permit lookup free?

The address lookup is free. A lifetime Home Passport PDF with the full permit and property record is $99.

Permit records in other Washington cities

Spokane, WATacoma, WABellevue, WAVancouver, WAKent, WAEverett, WARenton, WAYakima, WABellingham, WAKennewick, WAAuburn, WANew York, NYBrooklyn, NYBuffalo, NY

Fee ranges are Washington market estimates adjusted by Seattle's local cost level; confirm exact fees with the local building department. Reno HomeIQ aggregates public permit and property records — enter an address for the specific report.