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

City of Union, Missouri

city

10 E. Locust Street, Union, MO 63084

The City's permits page says the department is "responsible for the review of plans and issuance of building permits for all residential and commercial construction and remodeling projects within the City." It asks for a Building Permit Application with two sets of plans, a site plan, and "truss plans if there is roofing involved." The page does not say whether a roof replacement alone requires a permit.

The Engineering / Building Department states that "The City of Union has adopted the following codes:" and lists the "ICC International Residential Code - 2021 Edition" with the 2021 editions of the International Building, Existing Building, Plumbing, Mechanical, Fuel Gas, Property Maintenance and Energy Conservation Codes and the 2020 National Electrical Code. It refers readers to Chapter 500 of the Municipal Code for more detail. The text of Chapter 500, including any local amendments to the residential code, was not read.

9.4750% SALES TAX AND 6.4750% USE TAX FOR UNION, FRANKLIN COUNTY (Missouri Department of Revenue jurisdiction code 74626-071-000, listed as "UNION FRANKLIN COUNTY UNION FIRE PROTECTION DISTRICT UNION AMBULANCE DISTRICT"), per the Department's Sales and Use Tax Rate Tables for October, November, December 2026 (updated 8/25/2026). The same table lists 2 other rows for parts of Union inside a community improvement, transportation development or other district, in a separately coded part of the city, or in another county, with sales tax rates of 10.3500% to 10.4750%. 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."