At a glance
233 North Michigan Avenue is a 1,051,591-square-foot office building in Chicago, Illinois, built in 1972. In its 2023 Chicago benchmarking disclosure it reported a site energy-use intensity of 71.1 kBtu/ft² and 6,953 tCO₂e of greenhouse-gas emissions.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 71.1 kBtu/ft² |
| Source EUI | 131.8 kBtu/ft² |
| GHG emissions | 6,953 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 10,073,239 kWh |
| Natural gas | 403,623 therms |
| Gross floor area | 1,051,591 sq ft |
| Source record | chicago:101708:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 71.1 kBtu/ft² | 6,953 tCO₂e | |
| 2022 | 46 | -1 | 85.2 kBtu/ft² | 8,288 tCO₂e |
| 2021 | 47 | -8 | 80.1 kBtu/ft² | 8,430 tCO₂e |
| 2020 | 55 | -6 | 78.2 kBtu/ft² | 8,698 tCO₂e |
| 2019 | 61 | +9 | 88.8 kBtu/ft² | 10,602 tCO₂e |
| 2018 | 52 | -25 | 83.2 kBtu/ft² | 10,679 tCO₂e |
| 2017 | 77 | +2 | 82.4 kBtu/ft² | 11,207 tCO₂e |
| 2016 | 75 | -9 | 84.8 kBtu/ft² | 12,764 tCO₂e |
| 2015 | 84 | +10 | 59.5 kBtu/ft² | 11,914 tCO₂e |
| 2014 | 74 | 89.0 kBtu/ft² | 13,795 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
- 233 North Michigan Avenue
- City
- Chicago
- State
- Illinois
- ZIP
- 60601
- Coordinates
- 41.89000, -87.62144
Within ~1 km
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Multifamily Housing · 1,135,720 sq ft
See also: most efficient in Chicago · biggest emitters
How does 233 North Michigan Avenue compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. Its site EUI of 71.1 kBtu/ft² is roughly in line with the average of 70.4 kBtu/ft². Its emissions intensity of 6.6 kgCO₂e/ft² is about 12% below the group average of 7.5 kgCO₂e/ft².
At 1,051,591 sq ft, it is about twice the average floor area of 488,124 sq ft for those buildings. It was built in 1972, 16 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 233 North Michigan Avenue's energy performance changed over time?
BuildingCensus holds 10 Chicago disclosures for 233 North Michigan Avenue, covering report years 2014–2023. Its ENERGY STAR score went from 74 in 2014 to 46 in 2022 (-28 points); its best year on file was 2015, at 84. Site EUI moved from 89.0 kBtu/ft² (2014) to 71.1 kBtu/ft² (2023), a 20% decrease. Reported emissions went from 13,795 tCO₂e to 6,953 tCO₂e over the same span (down 50%).
What does a site EUI of 71.1 kBtu/ft² mean?
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. 233 North Michigan Avenue's 71.1 kBtu/ft² across 1,051,591 sq ft works out to about 74.8 billion Btu (21,912 MWh-equivalent) in 2023. Its source EUI of 131.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 10,073,239 kWh of electricity and 403,623 therms of natural gas for the year.
Which law requires 233 North Michigan Avenue to report its energy use?
233 North Michigan Avenue 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:101708:2023). 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
- 401 N Michigan Avenue· 1,040,767 sq ft · score 78 (B)
- 525 West Monroe· 1,028,492 sq ft · score 78 (B)
- 303 E. Wacker· 1,017,581 sq ft · score 87 (A)
- 333 West Wacker· 1,012,961 sq ft · score 77 (B)
- 200 West Madison (Brightly)· 1,001,833 sq ft · score 68 (C)
- O'Hare Plaza I· 985,092 sq ft · score 87 (A)
- 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 233 North Michigan Avenue's energy grade?
233 North Michigan Avenue did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 71.1 kBtu/ft².
How much energy does 233 North Michigan Avenue use?
Its 2023 site energy-use intensity was 71.1 kBtu/ft² (131.8 kBtu/ft² source) across 1,051,591 sq ft, including 10,073,239 kWh of electricity and 403,623 therms of natural gas.
What are 233 North Michigan Avenue's carbon emissions?
233 North Michigan Avenue reported 6,953 tCO₂e of greenhouse-gas emissions (6.6 kgCO₂e/ft²) for 2023.
Where is 233 North Michigan Avenue?
233 North Michigan Avenue is in Chicago, Illinois 60601. Its coordinates are 41.89000, -87.62144 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 233 North Michigan Avenue and when was it built?
233 North Michigan Avenue has 1,051,591 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1972 as its year built. It is classed as office.
Is 233 North Michigan Avenue 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, “233 North Michigan Avenue, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/233-north-michigan-avenue-89d1f4d9 (data as of October 2, 2026).