St. Louis, Missouri

St. Louis Trade, Demolition, and Residential Occupancy Permit Guide

St. Louis residential projects may need separate electrical, mechanical, plumbing, demolition, occupancy, or Housing Conservation District inspections in addition to building permits.

Project

Trade, Demolition, and Occupancy Permits

Location

St. Louis, Missouri

Last reviewed

April 26, 2026

Permit takeaway

St. Louis says building permits may also require separate plumbing, mechanical, and electrical permits, and those trade permits must be applied for by the appropriate licensed contractor when required.

Zoning and placement

Encroachments, high hazard uses, special conditional uses, redevelopment areas, historic properties, and flood areas can add approvals before permits are issued.

Building and trade review

A Housing Conservation District inspection is required before occupancy of many residential units, and all St. Louis property is located in a Housing Conservation District.

Call before applying when

Call before applying if the project includes electrical, mechanical, plumbing, demolition, occupancy, sale or rental of a residential unit, encroachment, or redevelopment-area property.

Documents to prepare

Inspection planning

Official sources

This guide is a planning summary. Always verify the current requirements with the local office before starting work.