City Building Permits
Town of Winthrop, WA Building Permit Guide
How to apply for a building permit in Town of Winthrop, Washington. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
All properties within the incorporated Town of Winthrop.
- Department
- Building/Planning Department
- Address
- 206 Riverside Avenue, Winthrop, WA 98862
- Phone
- 509-996-2320
Online Permit Portal
Platform: Manual submission • Account required: No • Submission: In-person only
Application Process
- Obtain the Building Permit Application from townofwinthrop.com/forms.html.
- Ensure the property has a valid assigned address before submitting.
- Obtain a current Business License for any business operating within Winthrop before Design Review Board consideration.
- Submit completed application with required documents to Town Hall.
- Applications are reviewed by the Town Planner.
- Submit Water and Sewer service applications (may be completed before or after building permit issuance).
- Pay required fees.
- Permit issued upon approval; valid for six months from issuance.
- Permit extensions: one six-month extension available in writing if no plan changes are made.
- Schedule required inspections.
Typical processing time: Processing time varies. Contact Town Hall for estimate.
Source: Building/Planning Department
General Requirements
A permit is required for construction, enlargement, alteration, repair, demolition, and system changes.
Required Documents
- Building Permit Application
- Site plan of the project
- Construction plans/drawings
- All other documents per application checklist
- Permit validity
- Permits are valid for six months from date of issuance. One six-month extension is available by written request if no plan changes are involved.
- Building code
- 2021 International Building Code (IBC) with Washington amendments, 2021 International Residential Code (IRC), and related Washington State codes.
- Contractor requirements
- Contractor registration with Washington State L&I required. Electrical permits obtained separately through Washington State L&I. Business license required before Design Review Board review of any business project.
Fees
- Permit fee formula
- Fees established by Town Council. A Land Use Fee Schedule is available from Town Hall.
- Payment note
- Contact Town Hall at 509-996-2320 or planner@townofwinthrop.com for current building permit fee amounts.
Work That Does NOT Require a Permit
Contact the Building/Planning Department to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- Town Hall: 509-996-2320 or Okanogan County: 509-422-7110 (phone)
- pubwks@methow.com (email)
- Scheduling deadline
- For county inspections, call at least 24 hours in advance.
- Inspection hours
- Building/Permit hours: Thursday and Friday, 9:00 AM to 3:30 PM. Methow Valley county inspections: Wednesday and Friday.
Typical inspection sequence: Building inspections may be conducted in coordination with Okanogan County. Typical sequence: Foundation/footings, Framing, Rough-in plumbing, Rough-in mechanical, Electrical rough-in (L&I, separate), Insulation, Final inspection.
Additional Resources
- Building code: 2021 International Building Code (IBC) with Washington amendments, 2021 International Residential Code (IRC), and related Washington State codes.
- Verify contractor license: WA L&I Contractor Lookup
- Zoning information: View zoning info
- Town website
- Building Permit Application
- Building Contractor Requirements
- Winthrop Municipal Code / Zoning
- Okanogan County Building Dept (inspections)
- Washington State L&I (electrical permits and contractor registration)
- License lookup guide: Washington Contractor License Requirements
- Contract template: Washington Homeowner-Contractor Agreement
- Washington hub: Washington Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Building/Planning Department before applying.
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