At a glance
372 West Ontario Street is a 50,078-square-foot office building in Chicago, Illinois, built in 1910. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 46.9 kBtu/ft² and 233 tCO₂e of greenhouse-gas emissions. That score is higher than 75% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 83 (band B) |
| Site EUI | 46.9 kBtu/ft² |
| Source EUI | 92.7 kBtu/ft² |
| GHG emissions | 233 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 365,065 kWh |
| Natural gas | 11,008 therms |
| Gross floor area | 50,078 sq ft |
| Source record | chicago:251227:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 83 | +7 | 46.9 kBtu/ft² | 233 tCO₂e |
| 2022 | 76 | -7 | 55.9 kBtu/ft² | 245 tCO₂e |
| 2021 | 83 | -6 | 47.6 kBtu/ft² | 222 tCO₂e |
| 2020 | 89 | -2 | 42.2 kBtu/ft² | 218 tCO₂e |
| 2019 | 91 | +10 | 51.2 kBtu/ft² | 278 tCO₂e |
| 2018 | 81 | -4 | 61.1 kBtu/ft² | 337 tCO₂e |
| 2017 | 85 | +6 | 66.2 kBtu/ft² | 422 tCO₂e |
| 2016 | 79 | +1 | 76.7 kBtu/ft² | 476 tCO₂e |
| 2015 | 78 | 72.5 kBtu/ft² | 491 tCO₂e |
Compliance context
Building Energy Use Benchmarking Ordinance
Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 372 West Ontario Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60654
- Coordinates
- 41.83478, -87.62707
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 372 West Ontario Street compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 372 West Ontario Street's ENERGY STAR score of 83 compares with an average of 69 across the 320 that report a score; it scores higher than 75% of them and lower than 22%. Its site EUI of 46.9 kBtu/ft² is about 33% below the average of 70.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.6 kgCO₂e/ft² is about 39% below the group average of 7.5 kgCO₂e/ft².
At 50,078 sq ft, it is about 90% below the average floor area of 488,124 sq ft for those buildings. It was built in 1910, 46 years earlier than the group's average year built (1957). 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 372 West Ontario Street's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for 372 West Ontario Street, covering report years 2015–2023. Its ENERGY STAR score went from 78 in 2015 to 83 in 2023 (+5 points); its best year on file was 2019, at 91. Site EUI moved from 72.5 kBtu/ft² (2015) to 46.9 kBtu/ft² (2023), a 35% decrease. Reported emissions went from 491 tCO₂e to 233 tCO₂e over the same span (down 53%).
What does an ENERGY STAR score of 83 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Chicago, 35% of scored buildings are at 75 or above.
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. 372 West Ontario Street's 46.9 kBtu/ft² across 50,078 sq ft works out to about 2.3 billion Btu (688 MWh-equivalent) in 2023. Its source EUI of 92.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 365,065 kWh of electricity and 11,008 therms of natural gas for the year.
Which law requires 372 West Ontario Street to report its energy use?
372 West Ontario Street reports under the Building Energy Use Benchmarking Ordinance, the legal basis of the Chicago Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2023 disclosure (source record chicago:251227:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More office buildings in Chicago
- 747 N LASALLE DR· 45,000 sq ft · EUI 37.6 kBtu/ft²
- Evangelical Covenant Church· 44,575 sq ft · score 22 (D)
- Foster Hall· 28,067 sq ft · score 52 (D)
- Office buildings in Chicago· 387 benchmarked
- All Chicago benchmarked buildings· Building Energy Use Benchmarking Ordinance
- Most efficient large buildings in Chicago
- Least efficient large buildings in Chicago
- Biggest emitters in Chicago
Frequently asked questions
What is 372 West Ontario Street's energy grade?
372 West Ontario Street scores 83 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 372 West Ontario Street use?
Its 2023 site energy-use intensity was 46.9 kBtu/ft² (92.7 kBtu/ft² source) across 50,078 sq ft, including 365,065 kWh of electricity and 11,008 therms of natural gas.
What are 372 West Ontario Street's carbon emissions?
372 West Ontario Street reported 233 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2023.
Where is 372 West Ontario Street?
372 West Ontario Street is in Chicago, Illinois 60654. Its coordinates are 41.83478, -87.62707 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 372 West Ontario Street and when was it built?
372 West Ontario Street has 50,078 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1910 as its year built. It is classed as office.
Is 372 West Ontario Street covered by the Building Energy Use Benchmarking Ordinance?
Yes — it appears in the 2023 Chicago Energy Benchmarking disclosure, which lists the buildings reporting under the Building Energy Use Benchmarking Ordinance.
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About this data
Source: Chicago Energy Benchmarking (Building Energy Use Benchmarking Ordinance), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “372 West Ontario Street, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/372-west-ontario-street-1396ce70 (data as of October 2, 2026).