The Tower at OPOP-Somerset
Multifamily Housing in St. Louis, MO · 411 N 8TH ST
At a glance
The Tower at OPOP-Somerset is a 180,000-square-foot multifamily housing building at 411 N 8TH ST in St. Louis, Missouri. In its 2021 St. Louis benchmarking disclosure it reported a site energy-use intensity of 69.1 kBtu/ft².
Building Energy Awareness Ordinance 70474 / BEPS 71132 · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 69.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 180,000 sq ft |
| Source record | st_louis:P-000295:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | — | 69.1 kBtu/ft² | — | |
| 2020 | — | 47.7 kBtu/ft² | — | |
| 2019 | — | 46.1 kBtu/ft² | — | |
| 2018 | — | 35.5 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
STRATEGIC STL TOWER LLC
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Location
- Address
- 411 N 8TH ST
- 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 The Tower at OPOP-Somerset compare with other multifamily housing buildings in St. Louis?
The latest disclosures cover 181 multifamily housing buildings in St. Louis, out of 639 buildings citywide. Its site EUI of 69.1 kBtu/ft² is about 26% above the average of 54.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 180,000 sq ft, it is about 37% above the average floor area of 131,363 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has The Tower at OPOP-Somerset's energy performance changed over time?
BuildingCensus holds 4 St. Louis disclosures for The Tower at OPOP-Somerset, covering report years 2018–2021. Site EUI moved from 35.5 kBtu/ft² (2018) to 69.1 kBtu/ft² (2021), an 95% increase.
What does a site EUI of 69.1 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. The Tower at OPOP-Somerset's 69.1 kBtu/ft² across 180,000 sq ft works out to about 12.4 billion Btu (3,645 MWh-equivalent) in 2021.
Which law requires The Tower at OPOP-Somerset to report its energy use?
The Tower at OPOP-Somerset 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-000295:2021). 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 multifamily housing buildings in St. Louis
- The Standard St. Louis· 179,122 sq ft · EUI 26.4 kBtu/ft²
- Marquette Building Master Condominium Association· 177,757 sq ft · EUI 41.1 kBtu/ft²
- Arlington (rl12)· 174,461 sq ft · EUI 31.2 kBtu/ft²
- Gallery 1014 Luxury Apartments· 173,504 sq ft · EUI 21.4 kBtu/ft²
- The Residences at Forest Park Hotel· 172,766 sq ft · EUI 16.9 kBtu/ft²
- Park Val Apartments· 167,739 sq ft · EUI 31.9 kBtu/ft²
- Multifamily Housing buildings in St. Louis· 181 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 The Tower at OPOP-Somerset's energy grade?
The Tower at OPOP-Somerset did not report an ENERGY STAR score in its 2021 disclosure, but its site energy-use intensity was 69.1 kBtu/ft².
How much energy does The Tower at OPOP-Somerset use?
Its 2021 site energy-use intensity was 69.1 kBtu/ft² across 180,000 sq ft.
What are The Tower at OPOP-Somerset's carbon emissions?
No greenhouse-gas emissions figure was reported for 2021.
Where is The Tower at OPOP-Somerset?
The Tower at OPOP-Somerset is at 411 N 8TH ST, in St. Louis, Missouri.
How big is The Tower at OPOP-Somerset and when was it built?
The Tower at OPOP-Somerset has 180,000 sq ft of gross floor area, as reported in its 2021 disclosure. It is classed as multifamily housing.
Is The Tower at OPOP-Somerset 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, “The Tower at OPOP-Somerset, St. Louis, Missouri — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/st-louis/the-tower-at-opop-somerset-f01fca4f (data as of July 9, 2026).