At a glance
10 South LaSalle Street is a 871,962-square-foot office building at 10 South Lasalle Street in Chicago, Illinois, built in 1986. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 44.7 kBtu/ft² and 5,407 tCO₂e of greenhouse-gas emissions. That score is higher than 51% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 75 (band B) |
| Site EUI | 44.7 kBtu/ft² |
| Source EUI | 124.1 kBtu/ft² |
| GHG emissions | 5,407 tCO₂e |
| GHG intensity | 6.2 kgCO₂e/ft² |
| Electricity | 11,259,597 kWh |
| Natural gas | 5,909 therms |
| Gross floor area | 871,962 sq ft |
| Source record | chicago:103600:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 75 | +5 | 44.7 kBtu/ft² | 5,407 tCO₂e |
| 2022 | 70 | ±0 | 50.1 kBtu/ft² | 5,709 tCO₂e |
| 2021 | 70 | ±0 | 49.0 kBtu/ft² | 6,064 tCO₂e |
| 2020 | 70 | +9 | 50.8 kBtu/ft² | 6,859 tCO₂e |
| 2019 | 61 | +11 | 58.1 kBtu/ft² | 8,362 tCO₂e |
| 2018 | 50 | -24 | 62.3 kBtu/ft² | 8,936 tCO₂e |
| 2017 | 74 | +2 | 60.9 kBtu/ft² | 9,680 tCO₂e |
| 2016 | 72 | +1 | 63.0 kBtu/ft² | 10,035 tCO₂e |
| 2015 | 71 | +4 | 63.2 kBtu/ft² | 10,970 tCO₂e |
| 2014 | 67 | 69.0 kBtu/ft² | 11,915 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
- 10 South Lasalle Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60603
- Coordinates
- 41.86940, -87.62484
Within ~1 km
Nearby benchmarked buildings
Convention Center · 9,245,333 sq ft
- Roosevelt Collectionscore 91
Mixed Use Property · 1,686,996 sq ft
- 55 East Monroe Officescore 67
Office · 1,609,901 sq ft
Multifamily Housing · 1,558,561 sq ft
- 222 South Riversidescore 85
Office · 1,237,455 sq ft
- Roosevelt Collection (rs314)score 90
Mixed Use Property · 1,095,338 sq ft
See also: most efficient in Chicago · biggest emitters
How does 10 South LaSalle Street compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 10 South LaSalle Street's ENERGY STAR score of 75 compares with an average of 69 across the 320 that report a score; it scores higher than 51% of them and lower than 47%. Its site EUI of 44.7 kBtu/ft² is about 37% below the average of 70.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.2 kgCO₂e/ft² is about 17% below the group average of 7.5 kgCO₂e/ft².
At 871,962 sq ft, it is about 79% above the average floor area of 488,124 sq ft for those buildings. It was built in 1986, 30 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 10 South LaSalle Street's energy performance changed over time?
BuildingCensus holds 10 Chicago disclosures for 10 South LaSalle Street, covering report years 2014–2023. Its ENERGY STAR score went from 67 in 2014 to 75 in 2023 (+8 points). Site EUI moved from 69.0 kBtu/ft² (2014) to 44.7 kBtu/ft² (2023), a 35% decrease. Reported emissions went from 11,915 tCO₂e to 5,407 tCO₂e over the same span (down 55%).
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 10 South LaSalle Street's 44.7 kBtu/ft² across 871,962 sq ft works out to about 39 billion Btu (11,423 MWh-equivalent) in 2023. Its source EUI of 124.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 11,259,597 kWh of electricity and 5,909 therms of natural gas for the year.
Which law requires 10 South LaSalle Street to report its energy use?
10 South LaSalle Street 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:103600:2023). 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
- Sullivan Center· 870,368 sq ft · score 80 (B)
- 180 North LaSalle· 859,786 sq ft · score 81 (B)
- 200 South Wacker Property LLC· 843,070 sq ft · score 67 (C)
- George W Dunne Cook County Office Building· 821,861 sq ft · score 91 (A)
- One East Wacker· 804,247 sq ft · score 92 (A)
- IL0303ZZ-METCALFE FED BLDG· 799,454 sq ft · score 88 (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 10 South LaSalle Street's energy grade?
10 South LaSalle Street scores 75 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 10 South LaSalle Street use?
Its 2023 site energy-use intensity was 44.7 kBtu/ft² (124.1 kBtu/ft² source) across 871,962 sq ft, including 11,259,597 kWh of electricity and 5,909 therms of natural gas.
What are 10 South LaSalle Street's carbon emissions?
10 South LaSalle Street reported 5,407 tCO₂e of greenhouse-gas emissions (6.2 kgCO₂e/ft²) for 2023.
Where is 10 South LaSalle Street?
10 South LaSalle Street is at 10 South Lasalle Street, in Chicago, Illinois 60603. Its coordinates are 41.86940, -87.62484 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 10 South LaSalle Street and when was it built?
10 South LaSalle Street has 871,962 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is 10 South LaSalle Street 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, “10 South LaSalle Street, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/10-south-lasalle-street-88fe1cf7 (data as of October 2, 2026).