Short answer: St. Louis operates the Midwest’s earliest active municipal Building Energy Performance Standard. Administered by the Office of Building Performance and the Building Energy Improvement Board (BEIB), Ordinance 71132 (BEPS) and Ordinance 70474 (Building Energy Awareness) govern commercial, institutional, municipal, and multifamily properties >=50,000 sq ft through annual May 1 ENERGY STAR Portfolio Manager filings and repeating 4-year Site EUI reduction cycles.
Because St. Louis benchmarks property compliance directly on Site EUI (kBtu/sq ft) rather than off-site renewable energy certificates, HVAC optimization, chiller/boiler controls, and heat-pump upgrades generate direct Site EUI improvements — creating an entirely different capital playbook than Missouri peer Kansas City’s disclosure-only Energy Empowerment Ordinance.
- Covered Scope (>=50,000 sq ft): Commercial offices, retail, institutional/university properties, city facilities, and multifamily apartments >=50k gross sq ft.
- Annual May 1 Benchmarking (Ord. 70474): Ameren Missouri electricity, Spire natural gas, and municipal steam feeds reported annually via Portfolio Manager.
- 4-Year Site EUI Standards (Ord. 71132): Cycle 1 targets hit May 4, 2025 across standard commercial cohorts, with qualifying affordable residential, non-profit/worship, and BEIB-approved extension plans running through May 2027.
- Alternate Compliance Options: Custom baseline targets, multi-building portfolio pathways, and BEIB-approved multi-year Building Improvement Plans for assets facing capital constraints.
Download the St. Louis BEPS & Awareness Reference
BEIB Extension Paths, Alternative Compliance & Mixed-Use Verification
For >=50,000 sq ft buildings that missed initial Cycle 1 Site EUI goals or carry qualifying affordable/nonprofit extensions running into 2027, early engagement with the Building Energy Improvement Board is decisive. Owners applying for Custom Baselines (e.g., data centers, labs, or 24/7 clinical healthcare) or phased multi-year improvement plans must preserve uninterrupted May 1 benchmarking records so verified Site EUI drops count cleanly.
Confirm Ameren Missouri and Spire whole-building meter coverage before May 1 each spring — missing tenant sub-meters skew Portfolio Manager Site EUI downward on paper or trigger false noncompliance notices.
- Verify Cycle 1 vs. 2027 Cohort Status: Confirm on the BEIB portal whether your tax parcel operates under standard Cycle 1 review or a May 2027 extension.
- No Offset Escape Hatch: Purchasing off-site RECs does not reduce Weather-Normalized Site EUI under St. Louis Ord. 71132.
| Ordinance & Cycle | Covered Scope | Deadline / Cadence | Compliance Metric |
|---|---|---|---|
| Building Energy Awareness (Ord. 70474) | Commercial, inst & multifamily >=50k sf | Annual May 1 | ENERGY STAR Portfolio Manager disclosure |
| St. Louis BEPS Cycle 1 (Ord. 71132) | Commercial, inst & multifamily >=50k sf | May 2025 / May 2027 ext | Property-type Site EUI targets (65% baseline) |
Compliance Execution Checklist
| Step | Owner / Team | Auditable Deliverable |
|---|---|---|
| 1. Parcel Target Lookup | Compliance / Ops | Verify building property-type Site EUI goal & 2025/2027 status on BEIB portal. |
| 2. Annual May 1 Filing | Property Manager | Submit Ameren/Spire whole-building PM uploads before May 1 cutoff. |
| 3. BEIB Path Documentation | Engineering / Legal | File ASHRAE/RCx proof or Alternative Compliance Plan where Site EUI lags. |
Keep This St. Louis, MO Compliance Checklist Handy
Frequently Asked Questions
How does St. Louis BEPS differ from Kansas City's building energy ordinance?
St. Louis enforces mandatory 4-year Site EUI performance targets (Ord. 71132) alongside annual May 1 benchmarking (Ord. 70474), whereas Kansas City's EEO mandates annual May 1 energy/water benchmarking only without numeric performance limits.
Can renewable energy certificates satisfy St. Louis BEPS targets?
No. St. Louis Ord. 71132 measures Weather-Normalized Site EUI (kBtu/sq ft), requiring actual building energy efficiency improvements or qualifying BEIB alternative compliance pathways.
Primary Authorities & Official Resources
- City of St. Louis Office of Building Performance — BEPS Targets (Ords. 71132 & 70474)
- Kansas City EEO Comparison Guide
Informational notice: This guide summarizes enacted statutes, regulations, or pending legislative records from the primary authorities linked above as of November 14, 2026. It is not legal, accounting, or licensed engineering advice.