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.
Trade, Demolition, and Occupancy Permits
St. Louis, Missouri
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
- Building permit number if linked
- Licensed trade contractor account
- Demolition scope if applicable
- Housing Conservation application if occupancy is involved
- Payment information
Inspection planning
- Obtain building and trade permits
- Request required trade inspections
- Complete Housing Conservation inspection before occupancy when required
- Keep certificates of inspection
Official sources
- St. Louis Additional Permits Required
- St. Louis Electrical Permits
- St. Louis Mechanical Permits
- St. Louis Residential Occupancy Permit
This guide is a planning summary. Always verify the current requirements with the local office before starting work.