At a glance
6 West Hubbard is a 66,030-square-foot office building in Chicago, Illinois, built in 1988. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 103.2 kBtu/ft² and 767 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 14 (band D) |
| Site EUI | 103.2 kBtu/ft² |
| Source EUI | 232.1 kBtu/ft² |
| GHG emissions | 767 tCO₂e |
| GHG intensity | 11.6 kgCO₂e/ft² |
| Electricity | 1,368,096 kWh |
| Natural gas | 21,448 therms |
| Gross floor area | 66,030 sq ft |
| Source record | chicago:135103:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 14 | -20 | 103.2 kBtu/ft² | 767 tCO₂e |
| 2022 | 34 | +23 | 63.4 kBtu/ft² | 547 tCO₂e |
| 2021 | 11 | -7 | 89.7 kBtu/ft² | 844 tCO₂e |
| 2020 | 18 | +3 | 96.0 kBtu/ft² | 851 tCO₂e |
| 2019 | 15 | +9 | 128.1 kBtu/ft² | — |
| 2018 | 6 | -10 | 141.3 kBtu/ft² | 1,237 tCO₂e |
| 2017 | 16 | -1 | 131.1 kBtu/ft² | 1,290 tCO₂e |
| 2016 | 17 | 125.3 kBtu/ft² | 1,286 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.
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Location
- Address
- 6 West Hubbard
- City
- Chicago
- State
- Illinois
- ZIP
- 60654
- Coordinates
- 41.87972, -87.66795
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 6 West Hubbard compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 6 West Hubbard's ENERGY STAR score of 14 compares with an average of 69 across the 320 that report a score; it scores higher than 2% of them and lower than 98%. Its site EUI of 103.2 kBtu/ft² is about 47% above the average of 70.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 11.6 kgCO₂e/ft² is about 55% above the group average of 7.5 kgCO₂e/ft².
At 66,030 sq ft, it is about 86% below the average floor area of 488,124 sq ft for those buildings. It was built in 1988, 32 years later 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 6 West Hubbard's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for 6 West Hubbard, covering report years 2016–2023. Its ENERGY STAR score went from 17 in 2016 to 14 in 2023 (-3 points); its best year on file was 2022, at 34. Site EUI moved from 125.3 kBtu/ft² (2016) to 103.2 kBtu/ft² (2023), a 18% decrease. Reported emissions went from 1,286 tCO₂e to 767 tCO₂e over the same span (down 40%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 points below 75, the threshold for ENERGY STAR certification. 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. 6 West Hubbard's 103.2 kBtu/ft² across 66,030 sq ft works out to about 6.8 billion Btu (1,997 MWh-equivalent) in 2023. Its source EUI of 232.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,368,096 kWh of electricity and 21,448 therms of natural gas for the year.
Which law requires 6 West Hubbard to report its energy use?
6 West Hubbard 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:135103:2023). 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
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- Sunshine Enterprise, LLC Series V (228 S Wabash)· 64,630 sq ft · score 69 (C)
- Rosenwald Hall· 64,380 sq ft · score 77 (B)
- A&M 303 WEST ERIE, LLC· 62,849 sq ft · EUI 61.9 kBtu/ft²
- 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 6 West Hubbard's energy grade?
6 West Hubbard scores 14 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 6 West Hubbard use?
Its 2023 site energy-use intensity was 103.2 kBtu/ft² (232.1 kBtu/ft² source) across 66,030 sq ft, including 1,368,096 kWh of electricity and 21,448 therms of natural gas.
What are 6 West Hubbard's carbon emissions?
6 West Hubbard reported 767 tCO₂e of greenhouse-gas emissions (11.6 kgCO₂e/ft²) for 2023.
Where is 6 West Hubbard?
6 West Hubbard is in Chicago, Illinois 60654. Its coordinates are 41.87972, -87.66795 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 6 West Hubbard and when was it built?
6 West Hubbard has 66,030 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1988 as its year built. It is classed as office.
Is 6 West Hubbard 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, “6 West Hubbard, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/6-west-hubbard-07488e05 (data as of October 2, 2026).