City Building Permits
Washington, MO - 2026 Building Permit Guide
How to apply for a building permit in Washington, Missouri. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Applies within the City of Washington.
- Department
- City of Washington Planning and Zoning / Building Code Administration
- Address
- 405 Jefferson St, Washington, MO 63090
- Phone
- (636) 390-1000
Application Process
- Start with the city Planning and Zoning Applications and Permits page to determine the required city filing.
- Review the Building Codes page to confirm applicable code adoption.
- Contact City Hall or the responsible department to obtain the current application path, submittal list, and fee schedule, since the reviewed public pages were thin.
- Submit the required permit materials and respond to review comments.
- Obtain permit approval before starting work and coordinate inspections with the city.
Source: City of Washington Planning and Zoning / Building Code Administration
General Requirements
Washington maintains official planning permit and building code pages; the reviewed public page text did not expose a detailed trigger list.
- Building code
- Washington has an official Building Codes page; the reviewed page text did not expose the underlying adopted-code list because the public page content was not fully rendered in accessible text.
Fees
- Payment note
- Confirm directly with Washington.
Work That Does NOT Require a Permit
Contact the City of Washington Planning and Zoning / Building Code Administration to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- (636) 390-1000 (phone)
- Inspection hours
- City Hall: 8:00 AM to 4:30 PM
Additional Resources
- Building code: Washington has an official Building Codes page; the reviewed page text did not expose the underlying adopted-code list because the public page content was not fully rendered in accessible text.
- Verify contractor license: Missouri Contractor License Lookup
- Zoning information: View zoning info
- Building Codes
- Contact Us
- License lookup guide: Missouri Contractor License Requirements
- Contract template: Missouri Homeowner-Contractor Agreement
- Missouri hub: Missouri Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Washington Planning and Zoning / Building Code Administration before applying.
Frequently Asked Questions
Washington Building Permit FAQ
- Do I need a building permit in Washington, MO?
- Washington maintains official planning permit and building code pages; the reviewed public page text did not expose a detailed trigger list.
- How do I apply for a building permit in Washington, MO?
- 1. Start with the city Planning and Zoning Applications and Permits page to determine the required city filing. 2. Review the Building Codes page to confirm applicable code adoption. 3. Contact City Hall or the responsible department to obtain the current application path, submittal list, and fee schedule, since the reviewed public pages were thin. 4. Submit the required permit materials and respond to review comments. 5. Obtain permit approval before starting work and coordinate inspections with the city.
- How do I schedule a building inspection in Washington, MO?
- Inspections can be scheduled via: (636) 390-1000.
Need help with your project?
Navigating permits in Washington can be complicated.
Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.
Learn how Jaspector worksOther cities in Franklin County