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Permitting Authorities / Missouri / City of Olivette - Department of Planning and Community Development

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

Adopted code

City of Olivette - Department of Planning and Community Development

Yes, a permit is required to replace a roof in Olivette, MO, issued by City of Olivette - Department of Planning and Community Development.

Roof code checklist: Olivette, MO

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesolivettemo.com2026-10-17
Repair permit thresholdNot published
Layer limit / roof-overPublishedR908.3.1.1olivettemo.com2026-10-17
Deck & sheathingNot published
Drip edgeNot published
Ice & water shieldYesolivettemo.com2026-10-17
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaPublishedolivettemo.com2026-10-17
Adopted codePublishedolivettemo.com2026-10-17
Contractor license / registrationNot published
Sales & use taxPublisheddor.mo.gov2026-10-17

Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.

Jurisdiction
City of Olivette, Missouri
Jurisdiction type
city
Address
1140 Dielman Road, Olivette, MO 63132
Contact
  • url: https://www.olivettemo.com/193/Planning-Community-Development
  • phone: 314-993-0252
Roofing permit required
Required
Adopted code
The department's page states: "On June 25, 2025, the City Council of Olivette adopted a revised fee schedule and adopted the 2021 ICC (International Code Council) codes", and lists the 2021 International Residential Code among the codes in force "Beginning July 1, 2025", by Ordinance 2816. The city's amendments are Chapter 504, Amendments to the 2021 International Residential Code, which was read in full. In Chapter 9, Roof Assemblies, the only change replaces section R903.4, Roof drainage, so that roof water may discharge onto flat areas of the site "provided the discharge is located at least ten (10) feet from the any lot line". Nothing else in Chapter 9 is amended, including the reroofing section R908 and the roof covering section R905. The city's replacement section R105.2, Work exempt from permit, lists no roofing work among the exempt items, and the city's Table R301.2 sets the local climatic and geographic design criteria.
Ice & water shield
Required — Olivette's amended Table R301.2, Climatic and Geographic Design Criteria, marks Ice Barrier Underlayment Required as YES. About ice & water barrier
Wind design criteria
Olivette's amended Table R301.2, Climatic and Geographic Design Criteria, gives a design wind speed of 105 mph, with no topographic effects, no special wind region and no windborne debris zone. The same table lists a ground snow load of 20, Seismic Design Category C, severe weathering, a frost depth of 30 inches, moderate to heavy termite damage, an air freezing index of 1500 and a mean annual temperature of 54 degrees.
Roof layer limit / recover
Olivette's local amendments to the 2021 International Residential Code (Chapter 504) were read in full and do not touch the reroofing section, R908, so the base 2021 rule applies. Section R908.3.1.1 bars a roof recover "Where the existing roof has two or more applications of any type of roof covering." One existing layer may be recovered; a second existing layer means a full tear-off.
Sales & use tax
9.2380% SALES TAX AND 5.7250% USE TAX FOR OLIVETTE, ST. LOUIS COUNTY (Missouri Department of Revenue jurisdiction code 54650-189-000, listed as "OLIVETTE ST LOUIS COUNTY"), per the Department's Sales and Use Tax Rate Tables for October, November, December 2026 (updated 8/25/2026). The same table lists 1 other rows for parts of Olivette inside a community improvement, transportation development or other district, in a separately coded part of the city, or in another county, with a sales tax rate of 10.2380%. For a roofer, the Department's Contractors Tax Matrix (effective 10-24-2022) defines a contractor as "Any person entering into an agreement to improve, repair, replace, erect or alter real property," and lists "Purchases of parts, materials, supplies, and chemicals purchased by contractors" as taxable. It says the "Missouri sales or Missouri consumer's use tax must be paid to the vendor or accrued and remitted directly to the Missouri Department of Revenue."

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The City of Olivette's Department of Planning and Community Development issues building permits, including roofing and re-roofing permits, and performs building inspections from the City Center at 1140 Dielman Road; plumbing, mechanical and electrical permits are handled by St. Louis County under contract. The city adopted the 2021 International Residential Code, with local amendments, beginning July 1, 2025. This listing covers residential building permits in the City of Olivette.

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Sources

Roofing questions: Olivette, MO

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

Yes, a permit is required to replace a roof in Olivette, MO.

Is ice & water shield required in Olivette, MO?

Yes. Olivette's amended Table R301.2, Climatic and Geographic Design Criteria, marks Ice Barrier Underlayment Required as YES.

Can you roof over an existing roof in Olivette, MO?

Olivette's local amendments to the 2021 International Residential Code (Chapter 504) were read in full and do not touch the reroofing section, R908, so the base 2021 rule applies. Section R908.3.1.1 bars a roof recover "Where the existing roof has two or more applications of any type of roof covering." One existing layer may be recovered; a second existing layer means a full tear-off.

What building code does Olivette, MO use?

The department's page states: "On June 25, 2025, the City Council of Olivette adopted a revised fee schedule and adopted the 2021 ICC (International Code Council) codes", and lists the 2021 International Residential Code among the codes in force "Beginning July 1, 2025", by Ordinance 2816. The city's amendments are Chapter 504, Amendments to the 2021 International Residential Code, which was read in full. In Chapter 9, Roof Assemblies, the only change replaces section R903.4, Roof drainage, so that roof water may discharge onto flat areas of the site "provided the discharge is located at least ten (10) feet from the any lot line". Nothing else in Chapter 9 is amended, including the reroofing section R908 and the roof covering section R905. The city's replacement section R105.2, Work exempt from permit, lists no roofing work among the exempt items, and the city's Table R301.2 sets the local climatic and geographic design criteria.