The Gage Commericial Condominium Building
College/University in Chicago, IL · 18-28 S. Michigan Avenue · 60603
At a glance
The Gage Commericial Condominium Building is a 209,399-square-foot college/university building at 18-28 S. Michigan Avenue in Chicago, Illinois, built in 1899. In its 2023 Chicago benchmarking disclosure it reported a site energy-use intensity of 49.1 kBtu/ft² and 1,141 tCO₂e of greenhouse-gas emissions.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 49.1 kBtu/ft² |
| Source EUI | 108.8 kBtu/ft² |
| GHG emissions | 1,141 tCO₂e |
| GHG intensity | 5.4 kgCO₂e/ft² |
| Electricity | 2,008,864 kWh |
| Natural gas | 34,289 therms |
| Gross floor area | 209,399 sq ft |
| Source record | chicago:260127:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 49.1 kBtu/ft² | 1,141 tCO₂e | |
| 2022 | — | 55.6 kBtu/ft² | 1,241 tCO₂e | |
| 2021 | — | 49.0 kBtu/ft² | 1,152 tCO₂e | |
| 2020 | — | 41.7 kBtu/ft² | 1,007 tCO₂e | |
| 2018 | — | 83.4 kBtu/ft² | 1,850 tCO₂e | |
| 2017 | — | 88.8 kBtu/ft² | 2,255 tCO₂e | |
| 2016 | — | 94.0 kBtu/ft² | 2,340 tCO₂e | |
| 2015 | — | 93.0 kBtu/ft² | 2,462 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
- 18-28 S. Michigan Avenue
- City
- Chicago
- State
- Illinois
- ZIP
- 60603
- Coordinates
- 41.86404, -87.61930
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does The Gage Commericial Condominium Building compare with other college/university buildings in Chicago?
The latest disclosures cover 92 college/university buildings in Chicago, out of 3,852 buildings citywide. Its site EUI of 49.1 kBtu/ft² is about half of the average of 96.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.4 kgCO₂e/ft² is about 39% below the group average of 8.9 kgCO₂e/ft².
At 209,399 sq ft, it is about 25% below the average floor area of 280,683 sq ft for those buildings. It was built in 1899, 71 years earlier than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 2,113 college/university buildings average an ENERGY STAR score of 68 and a site EUI of 98.7 kBtu/ft².
How has The Gage Commericial Condominium Building's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for The Gage Commericial Condominium Building, covering report years 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023. Site EUI moved from 93.0 kBtu/ft² (2015) to 49.1 kBtu/ft² (2023), a 47% decrease. Reported emissions went from 2,462 tCO₂e to 1,141 tCO₂e over the same span (down 54%).
What does a site EUI of 49.1 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. The Gage Commericial Condominium Building's 49.1 kBtu/ft² across 209,399 sq ft works out to about 10.3 billion Btu (3,013 MWh-equivalent) in 2023. Its source EUI of 108.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,008,864 kWh of electricity and 34,289 therms of natural gas for the year.
Which law requires The Gage Commericial Condominium Building to report its energy use?
The Gage Commericial Condominium Building 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:260127:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More college/university buildings in Chicago
- Mundelein Center- ID#102408· 206,160 sq ft · EUI 97.4 kBtu/ft²
- 623 S Wabash· 206,130 sq ft · EUI 54.3 kBtu/ft²
- 8795, 340 E Superior St· 187,974 sq ft · EUI 143.0 kBtu/ft²
- John T. Richardson Library· 187,000 sq ft · EUI 60.0 kBtu/ft²
- 1155 E 60th Street· 185,815 sq ft · EUI 64.0 kBtu/ft²
- CDM Center· 184,461 sq ft · EUI 91.0 kBtu/ft²
- College/University buildings in Chicago· 92 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 The Gage Commericial Condominium Building's energy grade?
The Gage Commericial Condominium Building did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 49.1 kBtu/ft².
How much energy does The Gage Commericial Condominium Building use?
Its 2023 site energy-use intensity was 49.1 kBtu/ft² (108.8 kBtu/ft² source) across 209,399 sq ft, including 2,008,864 kWh of electricity and 34,289 therms of natural gas.
What are The Gage Commericial Condominium Building's carbon emissions?
The Gage Commericial Condominium Building reported 1,141 tCO₂e of greenhouse-gas emissions (5.4 kgCO₂e/ft²) for 2023.
Where is The Gage Commericial Condominium Building?
The Gage Commericial Condominium Building is at 18-28 S. Michigan Avenue, in Chicago, Illinois 60603. Its coordinates are 41.86404, -87.61930 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is The Gage Commericial Condominium Building and when was it built?
The Gage Commericial Condominium Building has 209,399 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1899 as its year built. It is classed as college/university.
Is The Gage Commericial Condominium Building 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, “The Gage Commericial Condominium Building, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/the-gage-commericial-condominium-building-593a968f (data as of October 2, 2026).