PLEASE READ ALL INFO BELOW BEFORE STARTING APPLICATION

• Permit questions: permitting@washmo.gov | 636-390-1010

• Business license questions: licensing@washmo.gov | 636-390-1090

• Building codes and fees: Ordinance #23-13877 PDF / Plans must comply with 2021 International Building Codes and 2020 National Electric Code.

1. Application Process

• Create an account or log in to the Online Permit Center.

• Fill out the application completely and attach required plans.

• Click Submit — if you don’t, it will not be received by staff.

2. Review Timeline

• Plan review: 2–3 weeks (longer if additional info is required, please plan accordingly).

3. Approval & Payment

• Once approved, you’ll get an email from SmartGov with a permit invoice link.

• Pay invoice → permit issued → print and post on-site.

• No inspections can be scheduled until fees are paid and the permit is issued.

4. Occupancy Inspections

• Application and fee must be submitted before inspection can be scheduled.

5. Scheduling Inspections

• Call 636-390-1010 (building) or 636-390-1030 (water/sewer).

• Call by 3 PM the business day before the desired inspection date.

• No online scheduling is available.

6. City Hall Closures

• No processing or inspections on:
  New Year’s Day, Martin Luther King Jr. Day, President’s Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Veterans Day, Thanksgiving Day, Friday after Thanksgiving, Christmas Eve, Christmas Day.