Webster SOuare Condominiums
Multifamily Housing in Chicago, IL · 540 W Webster · 60614
At a glance
Webster SOuare Condominiums is a 206,697-square-foot multifamily housing building at 540 W Webster in Chicago, Illinois, built in 2015. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 45.2 kBtu/ft² and 846 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 96 (band A) |
| Site EUI | 45.2 kBtu/ft² |
| Source EUI | 81.6 kBtu/ft² |
| GHG emissions | 846 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 1,180,527 kWh |
| Natural gas | 53,203 therms |
| Gross floor area | 206,697 sq ft |
| Source record | chicago:257001:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 96 | +1 | 45.2 kBtu/ft² | 846 tCO₂e |
| 2022 | 95 | 52.2 kBtu/ft² | 930 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
- 540 W Webster
- City
- Chicago
- State
- Illinois
- ZIP
- 60614
- Coordinates
- 41.76114, -87.56495
Within ~1 km
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- Haberdasher SOuare Loftsscore 71
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- 1000 Adams CAscore 71
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See also: most efficient in Chicago · biggest emitters
How does Webster SOuare Condominiums 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. Webster SOuare Condominiums's ENERGY STAR score of 96 compares with an average of 62 across the 1,472 that report a score; it scores higher than 90% of them and lower than 8%. Its site EUI of 45.2 kBtu/ft² is about 37% 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 206,697 sq ft, it is roughly in line with the average floor area of 206,097 sq ft for those buildings. It was built in 2015, 44 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 Webster SOuare Condominiums's energy performance changed over time?
BuildingCensus holds 2 Chicago disclosures for Webster SOuare Condominiums, covering report years 2022–2023. Its ENERGY STAR score went from 95 in 2022 to 96 in 2023 (+1 points). Site EUI moved from 52.2 kBtu/ft² (2022) to 45.2 kBtu/ft² (2023), a 13% decrease. Reported emissions went from 930 tCO₂e to 846 tCO₂e over the same span (down 9%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Webster SOuare Condominiums's 45.2 kBtu/ft² across 206,697 sq ft works out to about 9.3 billion Btu (2,738 MWh-equivalent) in 2023. Its source EUI of 81.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,180,527 kWh of electricity and 53,203 therms of natural gas for the year.
Which law requires Webster SOuare Condominiums to report its energy use?
Webster SOuare Condominiums 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:257001:2023). 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
- Astor House· 206,150 sq ft · score 34 (D)
- 00821-Brookdale Lake View· 205,906 sq ft · score 8 (D)
- MiCA· 205,408 sq ft · score 42 (D)
- 55 W. Chestnut Apartments· 205,000 sq ft · score 55 (C)
- 1120 N. LaSalle Apartments· 204,845 sq ft · score 39 (D)
- 2101 S. Michigan Apartments· 204,401 sq ft · score 64 (C)
- Multifamily Housing buildings in Chicago· 1,515 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 Webster SOuare Condominiums's energy grade?
Webster SOuare Condominiums scores 96 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 Webster SOuare Condominiums use?
Its 2023 site energy-use intensity was 45.2 kBtu/ft² (81.6 kBtu/ft² source) across 206,697 sq ft, including 1,180,527 kWh of electricity and 53,203 therms of natural gas.
What are Webster SOuare Condominiums's carbon emissions?
Webster SOuare Condominiums reported 846 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2023.
Where is Webster SOuare Condominiums?
Webster SOuare Condominiums is at 540 W Webster, in Chicago, Illinois 60614. Its coordinates are 41.76114, -87.56495 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is Webster SOuare Condominiums and when was it built?
Webster SOuare Condominiums has 206,697 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2015 as its year built. It is classed as multifamily housing.
Is Webster SOuare Condominiums 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, “Webster SOuare Condominiums, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/webster-souare-condominiums-3f2b660a (data as of October 2, 2026).