1100 N. Dearborn
Multifamily Housing in Chicago, IL · 1100 N. Dearborn St. · 60610
At a glance
1100 N. Dearborn is a 179,090-square-foot multifamily housing building at 1100 N. Dearborn St. in Chicago, Illinois, built in 1930. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 96.6 kBtu/ft² and 1,187 tCO₂e of greenhouse-gas emissions. That score is higher than 33% of the 1,472 scored multifamily housing buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 51 (band D) |
| Site EUI | 96.6 kBtu/ft² |
| Source EUI | 131.6 kBtu/ft² |
| GHG emissions | 1,187 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 905,276 kWh |
| Natural gas | 142,072 therms |
| Water use | 6,394 kgal |
| Gross floor area | 179,090 sq ft |
| Source record | chicago:251282:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 51 | +10 | 96.6 kBtu/ft² | 1,187 tCO₂e |
| 2022 | 41 | -3 | 116.1 kBtu/ft² | 1,357 tCO₂e |
| 2021 | 44 | -5 | 109.7 kBtu/ft² | 1,324 tCO₂e |
| 2020 | 49 | +9 | 107.9 kBtu/ft² | 1,313 tCO₂e |
| 2019 | 40 | +5 | 117.0 kBtu/ft² | 1,455 tCO₂e |
| 2018 | 35 | -1 | 124.4 kBtu/ft² | 1,540 tCO₂e |
| 2017 | 36 | +27 | 118.2 kBtu/ft² | 1,526 tCO₂e |
| 2016 | 9 | 196.1 kBtu/ft² | 1,570 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
- 1100 N. Dearborn St.
- City
- Chicago
- State
- Illinois
- ZIP
- 60610
- Coordinates
- 41.74106, -87.63183
Within ~1 km
Nearby benchmarked buildings
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- 3000 N Halsted Streetscore 88
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- Cranston Condoscore 35
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- Park Manorscore 31
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See also: most efficient in Chicago · biggest emitters
How does 1100 N. Dearborn compare with other multifamily housing buildings in Chicago?
The latest disclosures cover 1,515 multifamily housing buildings in Chicago, out of 3,852 buildings citywide. 1100 N. Dearborn's ENERGY STAR score of 51 compares with an average of 62 across the 1,472 that report a score; it scores higher than 33% of them and lower than 66%. Its site EUI of 96.6 kBtu/ft² is about 34% above the average of 72.0 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.6 kgCO₂e/ft² is about 14% above the group average of 5.8 kgCO₂e/ft².
At 179,090 sq ft, it is about 13% below the average floor area of 206,097 sq ft for those buildings. It was built in 1930, 41 years earlier than the group's average year built (1971). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 1100 N. Dearborn's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for 1100 N. Dearborn, covering report years 2016–2023. Its ENERGY STAR score went from 9 in 2016 to 51 in 2023 (+42 points). Site EUI moved from 196.1 kBtu/ft² (2016) to 96.6 kBtu/ft² (2023), a 51% decrease. Reported emissions went from 1,570 tCO₂e to 1,187 tCO₂e over the same span (down 24%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. 1100 N. Dearborn's 96.6 kBtu/ft² across 179,090 sq ft works out to about 17.3 billion Btu (5,070 MWh-equivalent) in 2023. Its source EUI of 131.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 905,276 kWh of electricity, 142,072 therms of natural gas and 6,394 thousand gallons of water for the year.
Which law requires 1100 N. Dearborn to report its energy use?
1100 N. Dearborn 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:251282:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More multifamily housing buildings in Chicago
- Lincoln Lofts Condominium Association· 179,072 sq ft · score 100 (A)
- CA Washington· 178,875 sq ft · score 68 (C)
- Sangamon Lofts Condominium Association· 178,600 sq ft · score 97 (A)
- (IL219) - 333 S Des Plaines (333 S. Des Plaines)· 178,336 sq ft · score 40 (D)
- 30 E. Adams· 177,697 sq ft · EUI 22.4 kBtu/ft²
- River West Lofts· 177,000 sq ft · score 68 (C)
- Multifamily Housing buildings in Chicago· 1,515 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 1100 N. Dearborn's energy grade?
1100 N. Dearborn scores 51 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 1100 N. Dearborn use?
Its 2023 site energy-use intensity was 96.6 kBtu/ft² (131.6 kBtu/ft² source) across 179,090 sq ft, including 905,276 kWh of electricity and 142,072 therms of natural gas.
What are 1100 N. Dearborn's carbon emissions?
1100 N. Dearborn reported 1,187 tCO₂e of greenhouse-gas emissions (6.6 kgCO₂e/ft²) for 2023.
Where is 1100 N. Dearborn?
1100 N. Dearborn is at 1100 N. Dearborn St., in Chicago, Illinois 60610. Its coordinates are 41.74106, -87.63183 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 1100 N. Dearborn and when was it built?
1100 N. Dearborn has 179,090 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 1100 N. Dearborn 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, “1100 N. Dearborn, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/1100-n-dearborn-2dfc35fe (data as of October 2, 2026).