State Bill 5290 implementation

Effective January 1, 2025, all permit development agencies in Washington—including Unincorporated King County—will implement State Bill 5290. Learn more

Temporary move during election season

Due to expected heavy traffic at the King County Elections Building, King County Permits customer service hours will temporarily move to the Renton Library (100 Mill Avenue S).
When: October 24 – November 7, on Mondays and Thursdays from 10:30 am to 3:30 pm

Codes and complaints

Building and fire codes

Find out what building codes are enforced within King County and see additional resources and information on applicable building and fire codes.

File a complaint with Code Enforcement

The Code Enforcement Section investigates complaints regarding violations of King County codes related to zoning, building, property maintenance, shorelines, and critical areas in unincorporated King County.

Energy codes

Learn about energy-efficient design requirements and green building.

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Codes and complaints

Building and fire codes

File a complaint with Code Enforcement

Energy codes

Related Topics

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Permit forms

Inspections

Permit timelines

Language and region

Building and fire codes

File a complaint with Code Enforcement

Energy codes

Related Topics

Need help?

Permit forms

Inspections

Permit timelines