How Long Is a Building Permit Valid?
Learn when building permits expire, what inspections reset the clock, how extensions work, and what happens after expiration.
Direct answer
A building permit remains valid only for the periods established by the issuing jurisdiction. The project may have separate clocks for application expiration, starting work, inspection activity, final completion, and extensions.
A permit can expire before work begins, after construction starts but becomes inactive, or at an outer completion deadline. Requirements vary by jurisdiction, permit type, and project.
The five clocks
Application clock
An unissued application can expire when the applicant does not respond, submit corrections, pay fees, or obtain issuance within the local period.
Commencement clock
The issued permit may become void if meaningful work does not begin by the deadline.
Inspection or inactivity clock
Many jurisdictions require qualifying inspection activity at regular intervals.
Completion clock
An outer deadline may apply even when inspections continue.
Extension or reactivation clock
Extensions often must be requested before expiration. Recently expired permits may qualify for reactivation or renewal within a limited period.
What counts as progress?
The local rule may require a completed or approved inspection, substantial work documented by an inspector, an accepted revision, or a formal extension. Purchasing materials or simply requesting an inspection may not count.
What happens after expiration?
Possible consequences include stopped work, unavailable inspections, new fees, updated code requirements, revised plans, expired trade permits, and a new application or reinstatement process.
Do not continue permit-required work until the authority confirms the permit is active.
Keep the permit active
- Record all controlling dates.
- Schedule qualifying inspections early.
- Verify the inspection result and updated expiration.
- Keep trade permits aligned.
- Request extensions before the deadline.
- Complete final inspections and closeout.
Due diligence
Open and expired permits can affect purchases, sales, refinancing, and future projects. Review the permit card, approved plans, corrections, inspection history, extensions, and final approval.
Checklist
- Confirm application or issued status
- Record issuance and start-work deadlines
- Confirm what counts as commencement
- Record the last qualifying inspection
- Find the inactivity period
- Find the outer completion deadline
- Check associated trade permits
- Confirm extension and reactivation options
- Schedule final inspections
- Close the permit
How GovCodex helps
GovCodex can extract deadlines from permit cards and official guidance, organize inspection and extension reminders, and surface the next compliance action.
Frequently asked questions
Does a permit expire after work starts?
Yes, it can when work stops or qualifying inspections do not occur.
Does an inspection reset the clock?
In some jurisdictions, a qualifying approved inspection resets a rolling inactivity period.
Can an expired permit be renewed?
Sometimes. Options may include extension, reactivation, renewal, reinstatement, or a new application.
Can I keep working?
Not unless the issuing authority confirms the permit is active.
Sources
- Building permit renewals — Seattle Department of Construction and Inspections.
Related GovCodex guides
Visual guides
Last reviewed: July 29, 2026. Requirements vary by jurisdiction and property.
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