Building permits in St. Louis, MO
Permits for St. Louis are issued by City of St. Louis, Building Division — Permits Section. Applications go through the portal below.
Checked against the department's own page on 6 Sep 2026
Where to file
- Department
- City of St. Louis, Building Division — Permits Section
- Phone
- 314-622-3315
- Portal
- www.stlcitypermits.com/RequestBuildingPermit.aspx
STL City Permits portal. 1200 Market St, Room 425. stlcitypermits@stlouis-mo.gov. City Hall Room 426, 1200 Market St.
What each job needs in St. Louis
Typical requirements and fee ranges. Fees scale with project valuation, so treat these as a starting point and confirm the number with City of St. Louis before you quote.
| Project | Permits | Typical fee | Turnaround |
|---|---|---|---|
| Residential Remodel | Building, Electrical, Plumbing, Mechanical (HVAC) | $150–1,000+ (scaled to project valuation) | 10–15 business days |
| Addition | Building, Electrical, Plumbing, Mechanical (HVAC) | $150–1,000+ (scaled to project valuation) | 10–15 business days |
| New Construction | Building, Electrical, Plumbing, Mechanical (HVAC), Site / Grading | $500–3,000+ (scaled to valuation; plan review separate) | 10–15 business days |
| Electrical | Electrical | $50–250 | 3–5 business days |
| Plumbing | Plumbing | $50–200 | 3–5 business days |
| HVAC / Mechanical | Mechanical (HVAC) | $50–250 | 3–5 business days |
| Roofing | Roofing | $100–400 | 1–5 business days |
| Deck / Fence | Building | $150–1,000+ (scaled to project valuation) | 10–15 business days |
| Demolition | Demolition | $50–400 | 5–10 business days |
| Commercial Build-Out | Building, Electrical, Plumbing, Mechanical (HVAC), Fire / Life-Safety Review | $300–2,000+ (scaled to valuation; plan review separate) | 10–15 business days |
Licensing in Missouri
No statewide general-contractor license — GC licensing is handled locally by each city/county (Kansas City, St. Louis, Springfield, etc.); only the electrical contractor license is statewide.
Issued by No statewide GC license (local licensing); Missouri Division of Professional Registration (electrical) · Verify a licence
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Other Missouri jurisdictions
All Missouri jurisdictionsDepartment, portal and phone checked against the official page on 6 Sep 2026. Fee ranges and turnaround times are typical for this kind of work and are not quotes. Requirements change, so confirm with the department before you file. SQM.AI is not a law firm and this page is not legal advice.