Warrenton, MO - 2026 Building Permit Guide

Permit Authority

City permit authority applies inside Warrenton city limits. The city also enforces zoning and building codes and provides separate fire-district coordination

Department

City of Warrenton Building Department

Address

200 West Booneslick Road, Warrenton, MO 63383

Phone

636-456-3535

Email

Public staff email links are shown on the site , but no generic permit email was clearly listed in the public text

Website

https://www.warrenton-mo.org/building-department/

Online Permit Portal

Application Process

1. Open the Building Permit Applications page and choose the relevant form
2. Complete the permit application and supporting documents
3. Return completed forms and documents to Jon Struckhoff by email, by mail, or via the City Hall lobby drop box
4. Pay the required fee based on the fee schedule
5. Schedule inspections with the Building Department as work progresses
6. Close out the permit after final inspection

Typical processing time: Not stated publicly

Source: City of Warrenton Building Department

General Requirements

The city says a permit is required for most projects. The public guides specifically say decks need a permit before construction and require inspections

Required Documents

• When a permit is required: The city says a permit is required for most projects. The public guides specifically say decks need a permit before construction and require inspections
• Required documents: The public permit page points to forms and documents by project type; the deck guide indicates city code compliance and inspections, but a complete citywide checklist was not located in the extracted text
• Permit validity/expiration: Not located in public text here
• Owner-builder rules if available: Not located in public text here
• Contractor license requirements: Not clearly stated in the public text captured here
• Building code adopted: Building and construction codes are posted in eCode360; the city code is the governing source. The extracted text does not show a single code edition statement

Permit validity

Not located in public text here

Building code

Building and construction codes are posted in eCode360; the city code is the governing source. The extracted text does not show a single code edition statement

Owner-builder

Not located in public text here

Contractor requirements

Not clearly stated in the public text captured here

Fees

Minimum permit fee

All other permits start at $25.00

Plan check fee

0.0015 of construction cost

Permit fee formula

Mixed. Basic permit fee is 0.0040 based on construction costs, plan review fee is 0.0015 based on construction costs, and some permit types use flat fees

Reinspection fee

Residential re-inspection is $25 for each subsequent inspection; building permits also show a $50 residential inspection permit fee that includes initial inspection and one re-inspection

Payment note

City Hall accepts online forms and a lobby drop box; the page does not state a payment processor in the captured text

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

Contact the City of Warrenton Building Department to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

• Call the Building Department / City Hall ()

Inspection hours

City Hall hours are Monday through Friday, 8am to 5pm

Typical inspection sequence: The public deck guide says a permit is required before construction and at least three inspections are required during the build; final closeout occurs after inspection

Additional Resources

• Building code: Building and construction codes are posted in eCode360; the city code is the governing source. The extracted text does not show a single code edition statement
• Zoning information: View zoning info
• warrenton-mo.org
• warrenton-mo.org
• License lookup guide: Missouri Contractor License Requirements
• Contract template: Missouri Homeowner-Contractor Agreement
• Missouri hub: Missouri Contractor License & Permit Hub

Frequently Asked Questions

Warrenton Building Permit FAQ

Do I need a building permit in Warrenton, MO?

The city says a permit is required for most projects. The public guides specifically say decks need a permit before construction and require inspections

How much does a building permit cost in Warrenton, MO?

The minimum permit fee is All other permits start at $25.00. Fees are calculated as: Mixed. Basic permit fee is 0.0040 based on construction costs, plan review fee is 0.0015 based on construction costs, and some permit types use flat fees. Plan check fee: 0.0015 of construction cost.

How do I apply for a building permit in Warrenton, MO?

1. Open the Building Permit Applications page and choose the relevant form 2. Complete the permit application and supporting documents 3. Return completed forms and documents to Jon Struckhoff by email, by mail, or via the City Hall lobby drop box 4. Pay the required fee based on the fee schedule 5. Schedule inspections with the Building Department as work progresses 6. Close out the permit after final inspection

How long does it take to get a building permit in Warrenton, MO?

Typical processing time is Not stated publicly.

What work is exempt from building permits in Warrenton, MO?

The following work is generally exempt: No public citywide exempt-work list was located in the captured sources; The fee page does show separate treatment for signs, pools, fences, decks, and other permit categories.

How do I schedule a building inspection in Warrenton, MO?

Inspections can be scheduled via: Call the Building Department / City Hall.