At a glance
U.S. Cellular Plaza - 8410 _ Goby LLC is a 212,428-square-foot office building at 8410 West Bryn Mawr Avenue in Chicago, Illinois, built in 1981. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 4 out of 100 (grade D), a site energy-use intensity of 119.3 kBtu/ft² and 3,546 tCO₂e of greenhouse-gas emissions. That score is higher than 1% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 4 (band D) |
| Site EUI | 119.3 kBtu/ft² |
| Source EUI | 334.0 kBtu/ft² |
| GHG emissions | 3,546 tCO₂e |
| GHG intensity | 16.7 kgCO₂e/ft² |
| Electricity | 7,425,600 kWh |
| Natural gas | 147 therms |
| Gross floor area | 212,428 sq ft |
| Source record | chicago:251769:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 4 | +1 | 119.3 kBtu/ft² | 3,546 tCO₂e |
| 2022 | 3 | -35 | 129.2 kBtu/ft² | 3,619 tCO₂e |
| 2021 | 38 | +33 | 61.0 kBtu/ft² | 1,851 tCO₂e |
| 2020 | 5 | -33 | 132.9 kBtu/ft² | 4,410 tCO₂e |
| 2019 | 38 | +37 | 100.6 kBtu/ft² | 3,555 tCO₂e |
| 2018 | 1 | -75 | 227.1 kBtu/ft² | 8,032 tCO₂e |
| 2017 | 76 | +2 | 67.9 kBtu/ft² | 2,511 tCO₂e |
| 2016 | 74 | ±0 | 71.7 kBtu/ft² | 2,644 tCO₂e |
| 2015 | 74 | 70.8 kBtu/ft² | 2,841 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
- 8410 West Bryn Mawr Avenue
- City
- Chicago
- State
- Illinois
- ZIP
- 60631
- Coordinates
- 41.84547, -87.62745
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does U.S. Cellular Plaza - 8410 _ Goby LLC compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. U.S. Cellular Plaza - 8410 _ Goby LLC's ENERGY STAR score of 4 compares with an average of 69 across the 320 that report a score; it scores higher than 1% of them and lower than 99%. Its site EUI of 119.3 kBtu/ft² is about 69% 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 16.7 kgCO₂e/ft² is about 123% above the group average of 7.5 kgCO₂e/ft².
At 212,428 sq ft, it is about 56% below the average floor area of 488,124 sq ft for those buildings. It was built in 1981, 25 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 U.S. Cellular Plaza - 8410 _ Goby LLC's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for U.S. Cellular Plaza - 8410 _ Goby LLC, covering report years 2015–2023. Its ENERGY STAR score went from 74 in 2015 to 4 in 2023 (-70 points); its best year on file was 2017, at 76. Site EUI moved from 70.8 kBtu/ft² (2015) to 119.3 kBtu/ft² (2023), an 69% increase. Reported emissions went from 2,841 tCO₂e to 3,546 tCO₂e over the same span (up 25%).
What does an ENERGY STAR score of 4 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 4 means the building performs better than about 4% of its national peers. BuildingCensus bands the score into report-card grades; 4 falls in band D — lowest band (1–54). It sits 71 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. U.S. Cellular Plaza - 8410 _ Goby LLC's 119.3 kBtu/ft² across 212,428 sq ft works out to about 25.3 billion Btu (7,427 MWh-equivalent) in 2023. Its source EUI of 334.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 7,425,600 kWh of electricity and 147 therms of natural gas for the year.
Which law requires U.S. Cellular Plaza - 8410 _ Goby LLC to report its energy use?
U.S. Cellular Plaza - 8410 _ Goby LLC 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:251769:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
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Frequently asked questions
What is U.S. Cellular Plaza - 8410 _ Goby LLC's energy grade?
U.S. Cellular Plaza - 8410 _ Goby LLC scores 4 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 U.S. Cellular Plaza - 8410 _ Goby LLC use?
Its 2023 site energy-use intensity was 119.3 kBtu/ft² (334.0 kBtu/ft² source) across 212,428 sq ft, including 7,425,600 kWh of electricity and 147 therms of natural gas.
What are U.S. Cellular Plaza - 8410 _ Goby LLC's carbon emissions?
U.S. Cellular Plaza - 8410 _ Goby LLC reported 3,546 tCO₂e of greenhouse-gas emissions (16.7 kgCO₂e/ft²) for 2023.
Where is U.S. Cellular Plaza - 8410 _ Goby LLC?
U.S. Cellular Plaza - 8410 _ Goby LLC is at 8410 West Bryn Mawr Avenue, in Chicago, Illinois 60631. Its coordinates are 41.84547, -87.62745 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is U.S. Cellular Plaza - 8410 _ Goby LLC and when was it built?
U.S. Cellular Plaza - 8410 _ Goby LLC has 212,428 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1981 as its year built. It is classed as office.
Is U.S. Cellular Plaza - 8410 _ Goby LLC 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, “U.S. Cellular Plaza - 8410 _ Goby LLC, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/u-s-cellular-plaza-8410-goby-llc-09457ee4 (data as of October 2, 2026).