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Permitting Authorities / Missouri / City of Warrenton - Building Department

Do you need a permit to replace a roof in Warrenton, MO?

Adopted code

City of Warrenton - Building Department

The Building Department issues building permits in the City of Warrenton, Missouri (Warren County), from 200 West Booneslick Road. The City's residential construction guide says residential construction is governed by the 2015 International Residential Code, citing City Code Section 500.510. This listing covers the office's contact details and the local sales tax rate, the city's contractor licence rule, and the code facts quoted below; it does not cover every local permit rule.

Jurisdiction
City of Warrenton, Missouri
Jurisdiction type
city
Address
200 West Booneslick Road, Warrenton, MO 63383
Contact
  • url: https://www.warrenton-mo.org/building-department/
  • phone: 636-456-3535
Contractor registration required
Required
Registration details
  • city_level: The Building Department's Residential Construction Guidelines state: "A City of Warrenton Occupational License is required for all contractors." They add that a stop work notice may be issued when work is being performed "by contractors or subcontractors that are not registered with the city."
Adopted code
The Building Department's Residential Construction Guidelines state that residential construction in the City "is governed by the code requirements contained in the" International Residential Code, 2015, citing Warrenton City Code Section 500.510, and reproduce "SECTION 500.320: AMENDMENTS TO INTERNATIONAL RESIDENTIAL CODE" as one of the City's amendments.
Sales & use tax
Warrenton's combined sales tax rate is 9.225% (use tax 6.225%), jurisdiction code 77128-219-000, per the Missouri Department of Revenue's Jurisdiction and Total Rate Database for the fourth quarter of 2026. The same table lists 2 smaller rate areas inside the city where special taxing districts (community improvement districts among them) add tax, at a combined sales rate of 10.225%. Missouri's own state rate is 4.225%; the rest is local. For a re-roof, 12 CSR 10-112.010(1) provides that "a contractor is the final user and consumer of the materials and supplies used and consumed in fulfilling a construction contract and which become part of a completed real property improvement," so the roofer pays tax when it buys the materials. Under 12 CSR 10-112.010(2)(A), "In general, title passes after installation is complete," and where title passes after attachment the contractor "does not collect tax on its transfer of ownership or title of the item."

Local roofing hub

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Sources

Roofing questions: Warrenton, MO

Do roofing contractors need a license or registration in Warrenton, MO?

Yes.

What building code does Warrenton, MO use?

The Building Department's Residential Construction Guidelines state that residential construction in the City "is governed by the code requirements contained in the" International Residential Code, 2015, citing Warrenton City Code Section 500.510, and reproduce "SECTION 500.320: AMENDMENTS TO INTERNATIONAL RESIDENTIAL CODE" as one of the City's amendments.