At a glance
Marriott Courtyard Downtown Convention Center is a 168,049-square-foot hotel at 823 WASHINGTON AVE in St. Louis, Missouri. In its 2021 St. Louis benchmarking disclosure it reported a site energy-use intensity of 52.1 kBtu/ft².
Building Energy Awareness Ordinance 70474 / BEPS 71132 · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 52.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 168,049 sq ft |
| Source record | st_louis:P-000265:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | — | 52.1 kBtu/ft² | — | |
| 2020 | — | 51.5 kBtu/ft² | — | |
| 2019 | — | 63.2 kBtu/ft² | — | |
| 2018 | — | 63.3 kBtu/ft² | — | |
| 2017 | — | 62.7 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
LENNOX SUITTES LLC
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Location
- Address
- 823 WASHINGTON 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 Marriott Courtyard Downtown Convention Center compare with other hotel buildings in St. Louis?
The latest disclosures cover 31 hotel buildings in St. Louis, out of 639 buildings citywide. Its site EUI of 52.1 kBtu/ft² is about 36% below the average of 81.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 168,049 sq ft, it is about half of the average floor area of 348,352 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has Marriott Courtyard Downtown Convention Center's energy performance changed over time?
BuildingCensus holds 5 St. Louis disclosures for Marriott Courtyard Downtown Convention Center, covering report years 2017–2021. Site EUI moved from 62.7 kBtu/ft² (2017) to 52.1 kBtu/ft² (2021), a 17% decrease.
What does a site EUI of 52.1 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. Marriott Courtyard Downtown Convention Center's 52.1 kBtu/ft² across 168,049 sq ft works out to about 8.8 billion Btu (2,566 MWh-equivalent) in 2021.
Which law requires Marriott Courtyard Downtown Convention Center to report its energy use?
Marriott Courtyard Downtown Convention Center 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-000265:2021). 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 hotel buildings in St. Louis
- IN0038 - Angad Arts Hotel· 161,000 sq ft · EUI 77.0 kBtu/ft²
- Hotel Saint Louis· 160,120 sq ft · EUI 84.6 kBtu/ft²
- Magnolia Hotel· 150,000 sq ft · EUI 80.2 kBtu/ft²
- Doubletree by Hilton St Louis Forest Park· 132,675 sq ft · EUI 95.0 kBtu/ft²
- Element St. Louis Midtown· 125,027 sq ft · EUI 49.8 kBtu/ft²
- 19389 - Drury Inn & Suites Forest Park· 124,797 sq ft · EUI 70.8 kBtu/ft²
- Hotel buildings in St. Louis· 31 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 Marriott Courtyard Downtown Convention Center's energy grade?
Marriott Courtyard Downtown Convention Center did not report an ENERGY STAR score in its 2021 disclosure, but its site energy-use intensity was 52.1 kBtu/ft².
How much energy does Marriott Courtyard Downtown Convention Center use?
Its 2021 site energy-use intensity was 52.1 kBtu/ft² across 168,049 sq ft.
What are Marriott Courtyard Downtown Convention Center's carbon emissions?
No greenhouse-gas emissions figure was reported for 2021.
Where is Marriott Courtyard Downtown Convention Center?
Marriott Courtyard Downtown Convention Center is at 823 WASHINGTON AVE, in St. Louis, Missouri.
How big is Marriott Courtyard Downtown Convention Center and when was it built?
Marriott Courtyard Downtown Convention Center has 168,049 sq ft of gross floor area, as reported in its 2021 disclosure. It is classed as hotel.
Is Marriott Courtyard Downtown Convention Center 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, “Marriott Courtyard Downtown Convention Center, St. Louis, Missouri — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/st-louis/marriott-courtyard-downtown-convention-center-03f87f0f (data as of July 9, 2026).