At a glance
Clayton Avenue Building is a 247,150-square-foot office building at 4353 CLAYTON AVE in St. Louis, Missouri. In its 2021 St. Louis benchmarking disclosure it reported a site energy-use intensity of 109.5 kBtu/ft².
Building Energy Awareness Ordinance 70474 / BEPS 71132 · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 109.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 247,150 sq ft |
| Source record | st_louis:P-000631:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | — | 109.5 kBtu/ft² | — | |
| 2018 | — | 136.3 kBtu/ft² | — | |
| 2017 | — | 153.5 kBtu/ft² | — |
Compliance context
Building Energy Awareness Ordinance 70474 / BEPS 71132
St. Louis's Building Energy Performance Standard (Ordinance 71132) requires buildings of 50,000 sq ft or more to meet energy-use targets, with standards set on four-year cycles.
Ownership
BARNES-JEWISH HOSPITAL, C/O Cushman & Wakefield
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Location
- Address
- 4353 CLAYTON AVE
- City
- St. Louis
- State
- Missouri
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in St. Louis · biggest emitters
How does Clayton Avenue Building compare with other office buildings in St. Louis?
The latest disclosures cover 86 office buildings in St. Louis, out of 639 buildings citywide. Its site EUI of 109.5 kBtu/ft² is about 24% above the average of 88.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 247,150 sq ft, it is roughly in line with the average floor area of 229,954 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Clayton Avenue Building's energy performance changed over time?
BuildingCensus holds 3 St. Louis disclosures for Clayton Avenue Building, covering report years 2017, 2018, 2021. Site EUI moved from 153.5 kBtu/ft² (2017) to 109.5 kBtu/ft² (2021), a 29% decrease.
What does a site EUI of 109.5 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Clayton Avenue Building's 109.5 kBtu/ft² across 247,150 sq ft works out to about 27.1 billion Btu (7,931 MWh-equivalent) in 2021.
Which law requires Clayton Avenue Building to report its energy use?
Clayton Avenue Building reports under the Building Energy Awareness Ordinance 70474 / BEPS 71132, the legal basis of St. Louis's Building Energy Awareness Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2021 disclosure (source record st_louis:P-000631:2021). St. Louis's Building Energy Performance Standard (Ordinance 71132) requires buildings of 50,000 sq ft or more to meet energy-use targets, with standards set on four-year cycles.
More office buildings in St. Louis
- NORTH CAMPUS MAIN BLDG· 219,154 sq ft · EUI 83.4 kBtu/ft²
- Gateway Tower· 213,228 sq ft · EUI 97.8 kBtu/ft²
- Villa Manchester LLC· 206,000 sq ft · EUI 28.6 kBtu/ft²
- Heritage at 4240· 202,673 sq ft · EUI 95.9 kBtu/ft²
- @Commons· 202,115 sq ft · EUI 110.6 kBtu/ft²
- 555 Washington· 200,000 sq ft · EUI 61.1 kBtu/ft²
- Office buildings in St. Louis· 86 benchmarked
- All St. Louis benchmarked buildings· Building Energy Awareness Ordinance 70474 / BEPS 71132
- Most efficient large buildings in St. Louis
- Least efficient large buildings in St. Louis
- Biggest emitters in St. Louis
Frequently asked questions
What is Clayton Avenue Building's energy grade?
Clayton Avenue Building did not report an ENERGY STAR score in its 2021 disclosure, but its site energy-use intensity was 109.5 kBtu/ft².
How much energy does Clayton Avenue Building use?
Its 2021 site energy-use intensity was 109.5 kBtu/ft² across 247,150 sq ft.
What are Clayton Avenue Building's carbon emissions?
No greenhouse-gas emissions figure was reported for 2021.
Where is Clayton Avenue Building?
Clayton Avenue Building is at 4353 CLAYTON AVE, in St. Louis, Missouri.
How big is Clayton Avenue Building and when was it built?
Clayton Avenue Building has 247,150 sq ft of gross floor area, as reported in its 2021 disclosure. It is classed as office.
Is Clayton Avenue Building covered by the Building Energy Awareness Ordinance 70474 / BEPS 71132?
Yes — it appears in the 2021 Building Energy Awareness Benchmarking disclosure, which lists the buildings reporting under the Building Energy Awareness Ordinance 70474 / BEPS 71132.
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About this data
Source: Building Energy Awareness Benchmarking (Building Energy Awareness Ordinance 70474 / BEPS 71132), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Clayton Avenue Building, St. Louis, Missouri — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/st-louis/clayton-avenue-building-2bf549c7 (data as of July 9, 2026).