St. Louis County Plan Review Turnaround SLA
Official plan check review speed benchmarks enforced by St. Louis County Department of Transportation & Public Works in Missouri under St. Louis County Building Code Ordinance.
St. Louis County Trade Review Turnaround Matrix
| Trade Discipline | Standard SLA | Fast-Track / Expedited SLA | Review Prerequisite |
|---|---|---|---|
| 🏗️ Commercial Building & Structural | 10 - 16 Business Days | 3 - 5 Business Days | State PE/RA Sealed Drawings + Foundation Engineering |
| ❄️ Mechanical & HVAC Tonnage | 5 - 8 Business Days | 1 - 3 Business Days | COMcheck Load Calculations + Rooftop Curb Details |
| ⚡ Commercial Electrical Systems | 5 - 8 Business Days | 1 - 2 Business Days | Single-Line Riser Diagram + Fault Current Calculations |
| 🚿 Commercial Plumbing Systems | 5 - 8 Business Days | 1 - 2 Business Days | Fixture Unit Count Schematic + Backflow Prevention Detail |
| 🍳 Restaurant Kitchen & Grease Interceptor | 10 - 15 Business Days | 5 - 7 Business Days | County Health Dept Approval + FOG Sizing Spreadsheet |
| 🔥 Fire Suppression & Alarms | 12 - 18 Business Days | 5 - 8 Business Days | Fire Marshal Plan Review + NFPA 13 Hydraulic Calculations |
🚀 How to Fast-Track Plan Review in St. Louis County
Submitting plans to St. Louis County Department of Transportation & Public Works requires strict adherence to local submittal standards. To reduce your review turnaround time by up to 60%, follow these 3 municipal expediting protocols:
- 1. File Concurrent Submittals: Submit MEP (Mechanical, Electrical, Plumbing) drawings simultaneously with structural building plans rather than sequentially.
- 2. Retain a Licensed Local Expediter: Authorized local expediters interface directly with plan examiners in St. Louis County to address corrections within 24 hours.
- 3. Pre-Screen for Over-the-Counter (OTC): Interior cosmetic alterations under $50,000 with no structural or load changes often qualify for same-day OTC approval.
⚠️ Top Causes of Plan Review Rejections
Over 40% of first-round plan submittals in Missouri experience delays due to common administrative and engineering omissions:
Official AHJ Contact & Enforcement Details Verified 2026
❓ Frequently Asked Questions about St. Louis County Plan Review
How long does a commercial building permit take in St. Louis County?
Standard commercial building plan review in St. Louis County takes an average of 10 - 16 Business Days under St. Louis County Building Code Ordinance. Turnaround times vary depending on structural complexity, building square footage, and submittal accuracy.
Can I expedite plan review in St. Louis County?
Yes. St. Louis County allows expedited plan review for qualified commercial projects through municipal fast-track surcharges or accredited third-party peer review engineers, which can reduce processing times to 3–5 business days.
What happens if my plan review exceeds the SLA turnaround window?
If plan check exceeds the stated SLA turnaround timeframe in St. Louis County, applicants can request a formal supervisor review meeting or file for a third-party expedited review audit through St. Louis County Department of Transportation & Public Works.