
St. Louis became the first Midwest city to adopt a Building Energy Performance Standard, setting site Energy Use Intensity thresholds by property type with compliance deadlines beginning in 2025. This guide breaks down requirements, compliance pathways, and steps to boost building performance.
St. Louis has taken a major step toward sustainability by implementing its Building Energy Performance Standard (BEPS), passed in 2020. As the first city in the Midwest to adopt such a policy, St. Louis is setting energy use intensity (EUI) limits for municipal, commercial, institutional, and multifamily buildings 50,000 square feet and larger.
This ordinance is a cornerstone of the city’s efforts to reduce greenhouse gas emissions and cut energy waste. It requires buildings to meet site EUI targets based on the 35th percentile of local benchmarking data, meaning 65% of buildings must improve to reach compliance.
A Building Performance Standard (BPS) is a regulation that establishes legally binding energy efficiency targets for buildings. These targets are typically expressed as energy use intensity (EUI), calculated as the total energy consumed per square foot annually.
St. Louis’s BEPS mandates that each covered building meet a site EUI threshold for its property type, determined from local 2018 benchmarking data. Buildings that fail to meet the target must make physical or operational improvements to reduce energy consumption.

St. Louis’s BEPS includes the following core components:
Any property meeting the 50,000 sq. ft. threshold must comply, with additional flexibility given to affordable housing and religious facilities, which have until 2027 to meet standards.

Benchmarking is the foundation of the BEPS compliance process. Building owners must:
Accurate benchmarking allows owners to understand current performance and identify gaps.
Each building has a specific EUI threshold depending on its property type. Owners should:
Buildings with EUIs above the target must begin planning efficiency upgrades.
St. Louis offers four compliance pathways:
Each path requires different documentation and verification, but all lead to compliance if executed correctly.

To reduce energy consumption and meet BEPS targets, property owners should invest in:
Many upgrades also qualify for rebates or tax incentives, helping offset upfront costs.
By the May 4, 2025 deadline, building owners must:
Failing to report or meet requirements may result in enforcement actions.
Improved efficiency leads to lower utility bills and maintenance costs, offering long-term financial returns.
Non-compliance can lead to significant fines or restrictions on occupancy, which disrupt operations and reduce property value.
Energy-efficient buildings are more attractive to tenants, investors, and buyers, particularly in a market that values ESG performance.
Meeting BEPS targets supports St. Louis’s climate action plan and demonstrates corporate environmental responsibility.

Efficiency upgrades can be capital-intensive. However, owners can:
The BEPS program includes complex reporting and verification steps. To simplify compliance:
Older facilities may need significant retrofits. Owners should:
The clock is ticking for commercial property owners in St. Louis. To stay ahead of the 2025 deadline:
By acting early, property owners can reduce risk, enhance building performance, and support a cleaner energy future for St. Louis.

Discover how St. Louis Missouri Sustainability Plan supports energy efficiency, emissions reduction, and sustainable building practices. Download the report to stay ahead of regulatory requirements.
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