Home / Roofing by City / Chesterfield, Missouri

No — Chesterfield, MO does not require a permit for like-for-like roof replacement (St. Louis County, Missouri Department of Transportation and Public Works - Building Permit Section (permitting authority for the City of Chesterfield, Missouri, by contract)). Confirmed from Chesterfield's own Municipal Code, Chapter 500 ("Buildings and Building Regulations"), Article I -- itself titled "Code Adoptions And County Enforcement Services" -- Section 500.020: "The City of Chesterfield, Missouri, is hereby authorized and directed to execute and enter into a contract on behalf of the City with St. Louis County, Missouri, for technical code enforcement services, which contract shall be on file in the City offices." Corroborated by St. Louis County's own Municipal Contract Agreements matrix confirming Chesterfield contracts out its Residential Code (see description). St. Louis County's own Re-Roofing Checklist (2015 IRC as amended by St. Louis County ordinances) states its submittal path applies "to re-roof with asphalt shingles a residence in Unincorporated St. Louis County, and in those municipalities that contract with St. Louis County for Residential Code Enforcement Services" -- Chesterfield is one such municipality, and the checklist further requires: "For properties in a municipality, submit each site plan stamped, signed and dated by the Municipal Zoning officer, and submit the Zoning application receipt dated and signed-approved by the Zoning Officer" -- i.e., Chesterfield zoning sign-off is a prerequisite the County requires before issuing the permit itself. Applicants apply for the actual roofing permit through St. Louis County, not Chesterfield City Hall, but must first obtain Chesterfield zoning approval. Permit trigger, from St. Louis County's Re-Roofing Checklist (the County enforces Chesterfield's building code under contract): from St. Louis County's Re-Roofing Checklist (2015 IRC as amended, explicitly applicable to contracting municipalities including Chesterfield): "A building permit is required to re-roof with asphalt shingles a 1-or 2-family attached dwelling or townhouse, where any of the following conditions are present: [The Roof Slope is less than 4:12, or more than 25% of Roof Sheathing requires replacement.] [The Roof Cover proposed is a different material from the existing roof cover, such as replacing wood shingles with asphalt shingles. This is required regardless of the roof slope.] [The wood structural panel sheathing is required to replace existing board sheathing, because the gaps between the boards exceed space limits of the Code.]" And: "A building permit is not required to provide a like-for-like replacement of asphalt shingles on roofs having a 4:12 or greater slope." Even permit-exempt reroofing must still comply with IRC Reroofing Section R907 (referencing IBC Section 105.2 via the IRC adopting ordinance). Chesterfield, Missouri sits in one of the country's most hail-prone regions. This hub aggregates Chesterfield's roofing permit and contractor-registration requirements and impact-resistant material options — every fact linked to its sourced directory record.