411 W Ontario
Multifamily Housing in Chicago, IL · 411 W. Ontario Street · 60654
At a glance
411 W Ontario is a 261,854-square-foot multifamily housing building at 411 W. Ontario Street in Chicago, Illinois, built in 1994. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 50.6 kBtu/ft² and 1,064 tCO₂e of greenhouse-gas emissions. That score is higher than 81% of the 1,472 scored multifamily housing buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 50.6 kBtu/ft² |
| Source EUI | 80.8 kBtu/ft² |
| GHG emissions | 1,064 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 1,214,745 kWh |
| Natural gas | 91,082 therms |
| Gross floor area | 261,854 sq ft |
| Source record | chicago:242638:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 90 | -3 | 50.6 kBtu/ft² | 1,064 tCO₂e |
| 2022 | 93 | -2 | 55.6 kBtu/ft² | 1,114 tCO₂e |
| 2021 | 95 | -2 | 53.8 kBtu/ft² | 1,058 tCO₂e |
| 2020 | 97 | ±0 | 50.0 kBtu/ft² | 1,023 tCO₂e |
| 2019 | 97 | -1 | 53.1 kBtu/ft² | — |
| 2018 | 98 | +1 | 53.1 kBtu/ft² | 1,104 tCO₂e |
| 2017 | 97 | -3 | 52.2 kBtu/ft² | 1,142 tCO₂e |
| 2016 | 100 | ±0 | 34.8 kBtu/ft² | 629 tCO₂e |
| 2015 | 100 | 35.7 kBtu/ft² | 660 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
- 411 W. Ontario Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60654
- Coordinates
- 41.94678, -87.64254
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 411 W Ontario compare with other multifamily housing buildings in Chicago?
The latest disclosures cover 1,515 multifamily housing buildings in Chicago, out of 3,852 buildings citywide. 411 W Ontario's ENERGY STAR score of 90 compares with an average of 62 across the 1,472 that report a score; it scores higher than 81% of them and lower than 18%. Its site EUI of 50.6 kBtu/ft² is about 30% below the average of 72.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.1 kgCO₂e/ft² is about 29% below the group average of 5.8 kgCO₂e/ft².
At 261,854 sq ft, it is about 27% above the average floor area of 206,097 sq ft for those buildings. It was built in 1994, 23 years later than the group's average year built (1971). 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 411 W Ontario's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for 411 W Ontario, covering report years 2015–2023. Its ENERGY STAR score went from 100 in 2015 to 90 in 2023 (-10 points); its best year on file was 2015, at 100. Site EUI moved from 35.7 kBtu/ft² (2015) to 50.6 kBtu/ft² (2023), an 42% increase. Reported emissions went from 660 tCO₂e to 1,064 tCO₂e over the same span (up 61%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 falls in band A — high performer (85–100). 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. 411 W Ontario's 50.6 kBtu/ft² across 261,854 sq ft works out to about 13.2 billion Btu (3,883 MWh-equivalent) in 2023. Its source EUI of 80.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,214,745 kWh of electricity and 91,082 therms of natural gas for the year.
Which law requires 411 W Ontario to report its energy use?
411 W Ontario 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:242638:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More multifamily housing buildings in Chicago
- Vista Homes Building Corporation· 261,354 sq ft · score 97 (A)
- 3900 Lake Shore Drive Condominium Association· 261,137 sq ft · score 72 (B)
- (IL323)- Two River Place (720 N Larrabee)· 260,857 sq ft · score 44 (D)
- Addison & Clark (dd020)· 260,793 sq ft · score 12 (D)
- Winston Towers No. 2 Association· 260,609 sq ft · score 31 (D)
- Park Newberry· 260,055 sq ft · score 33 (D)
- Multifamily Housing buildings in Chicago· 1,515 benchmarked
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Frequently asked questions
What is 411 W Ontario's energy grade?
411 W Ontario scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 411 W Ontario use?
Its 2023 site energy-use intensity was 50.6 kBtu/ft² (80.8 kBtu/ft² source) across 261,854 sq ft, including 1,214,745 kWh of electricity and 91,082 therms of natural gas.
What are 411 W Ontario's carbon emissions?
411 W Ontario reported 1,064 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2023.
Where is 411 W Ontario?
411 W Ontario is at 411 W. Ontario Street, in Chicago, Illinois 60654. Its coordinates are 41.94678, -87.64254 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 411 W Ontario and when was it built?
411 W Ontario has 261,854 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1994 as its year built. It is classed as multifamily housing.
Is 411 W Ontario 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, “411 W Ontario, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/411-w-ontario-6f57570b (data as of October 2, 2026).