At a glance
55 E. Jackson AcOuisitions LLC is a 434,169-square-foot office building at 55 E. Jackson Blvd in Chicago, Illinois, built in 1961. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 53 out of 100 (grade D), a site energy-use intensity of 102.7 kBtu/ft² and 4,059 tCO₂e of greenhouse-gas emissions. That score is higher than 18% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 53 (band D) |
| Site EUI | 102.7 kBtu/ft² |
| Source EUI | 186.3 kBtu/ft² |
| GHG emissions | 4,059 tCO₂e |
| GHG intensity | 9.3 kgCO₂e/ft² |
| Electricity | 5,703,459 kWh |
| Natural gas | 251,452 therms |
| Gross floor area | 434,169 sq ft |
| Source record | chicago:101876:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 53 | +1 | 102.7 kBtu/ft² | 4,059 tCO₂e |
| 2022 | 52 | +2 | 108.1 kBtu/ft² | 4,039 tCO₂e |
| 2021 | 50 | +25 | 110.7 kBtu/ft² | 4,349 tCO₂e |
| 2020 | 25 | +5 | 180.6 kBtu/ft² | 6,293 tCO₂e |
| 2019 | 20 | -6 | 191.0 kBtu/ft² | 7,501 tCO₂e |
| 2018 | 26 | -16 | 128.9 kBtu/ft² | 6,269 tCO₂e |
| 2017 | 42 | +1 | 129.9 kBtu/ft² | 7,212 tCO₂e |
| 2016 | 41 | +3 | 133.8 kBtu/ft² | 7,512 tCO₂e |
| 2015 | 38 | +2 | 142.8 kBtu/ft² | 8,226 tCO₂e |
| 2014 | 36 | 153.0 kBtu/ft² | 8,560 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
- 55 E. Jackson Blvd
- City
- Chicago
- State
- Illinois
- ZIP
- 60604
- Coordinates
- 41.82898, -87.63252
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 55 E. Jackson AcOuisitions LLC compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 55 E. Jackson AcOuisitions LLC's ENERGY STAR score of 53 compares with an average of 69 across the 320 that report a score; it scores higher than 18% of them and lower than 80%. Its site EUI of 102.7 kBtu/ft² is about 46% 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 9.3 kgCO₂e/ft² is about 24% above the group average of 7.5 kgCO₂e/ft².
At 434,169 sq ft, it is about 11% below the average floor area of 488,124 sq ft for those buildings. It was built in 1961, 5 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 55 E. Jackson AcOuisitions LLC's energy performance changed over time?
BuildingCensus holds 10 Chicago disclosures for 55 E. Jackson AcOuisitions LLC, covering report years 2014–2023. Its ENERGY STAR score went from 36 in 2014 to 53 in 2023 (+17 points). Site EUI moved from 153.0 kBtu/ft² (2014) to 102.7 kBtu/ft² (2023), a 33% decrease. Reported emissions went from 8,560 tCO₂e to 4,059 tCO₂e over the same span (down 53%).
What does an ENERGY STAR score of 53 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 53 means the building performs better than about 53% of its national peers. BuildingCensus bands the score into report-card grades; 53 falls in band D — lowest band (1–54). It sits 22 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. 55 E. Jackson AcOuisitions LLC's 102.7 kBtu/ft² across 434,169 sq ft works out to about 44.6 billion Btu (13,068 MWh-equivalent) in 2023. Its source EUI of 186.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,703,459 kWh of electricity and 251,452 therms of natural gas for the year.
Which law requires 55 E. Jackson AcOuisitions LLC to report its energy use?
55 E. Jackson AcOuisitions 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:101876:2023). 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
- Chicago Transit Authority - 567 W Lake Street· 434,052 sq ft · score 74 (B)
- 311 West Monroe· 425,816 sq ft · score 80 (B)
- 121 West Wacker Drive AKA 221 N La Salle Street· 417,599 sq ft · score 72 (B)
- Presidents Plaza 1· 417,395 sq ft · score 93 (A)
- 224 South Michigan Avenue· 412,504 sq ft · score 87 (A)
- 33 North LaSalle Street· 411,612 sq ft · score 56 (C)
- 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 55 E. Jackson AcOuisitions LLC's energy grade?
55 E. Jackson AcOuisitions LLC scores 53 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 55 E. Jackson AcOuisitions LLC use?
Its 2023 site energy-use intensity was 102.7 kBtu/ft² (186.3 kBtu/ft² source) across 434,169 sq ft, including 5,703,459 kWh of electricity and 251,452 therms of natural gas.
What are 55 E. Jackson AcOuisitions LLC's carbon emissions?
55 E. Jackson AcOuisitions LLC reported 4,059 tCO₂e of greenhouse-gas emissions (9.3 kgCO₂e/ft²) for 2023.
Where is 55 E. Jackson AcOuisitions LLC?
55 E. Jackson AcOuisitions LLC is at 55 E. Jackson Blvd, in Chicago, Illinois 60604. Its coordinates are 41.82898, -87.63252 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 55 E. Jackson AcOuisitions LLC and when was it built?
55 E. Jackson AcOuisitions LLC has 434,169 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1961 as its year built. It is classed as office.
Is 55 E. Jackson AcOuisitions 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, “55 E. Jackson AcOuisitions LLC, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/55-e-jackson-acouisitions-llc-55b98512 (data as of October 2, 2026).