At a glance
601 South LaSalle is a 80,000-square-foot office building at 601 South Lasalle Street in Chicago, Illinois, built in 1917. In its 2023 Chicago benchmarking disclosure it reported a site energy-use intensity of 41.9 kBtu/ft² and 462 tCO₂e of greenhouse-gas emissions.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 41.9 kBtu/ft² |
| Source EUI | 115.5 kBtu/ft² |
| GHG emissions | 462 tCO₂e |
| GHG intensity | 5.8 kgCO₂e/ft² |
| Electricity | 957,805 kWh |
| Natural gas | 875 therms |
| Gross floor area | 80,000 sq ft |
| Source record | chicago:156549:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 41.9 kBtu/ft² | 462 tCO₂e | |
| 2022 | — | 59.6 kBtu/ft² | 462 tCO₂e | |
| 2021 | — | 57.9 kBtu/ft² | 469 tCO₂e | |
| 2020 | — | 55.3 kBtu/ft² | 653 tCO₂e | |
| 2019 | 42 | +20 | 77.4 kBtu/ft² | 998 tCO₂e |
| 2018 | 22 | -17 | 98.6 kBtu/ft² | 1,270 tCO₂e |
| 2017 | 39 | +6 | 97.7 kBtu/ft² | 1,411 tCO₂e |
| 2016 | 33 | -33 | 98.5 kBtu/ft² | 1,421 tCO₂e |
| 2015 | 66 | 66.8 kBtu/ft² | 1,074 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 601 South Lasalle Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60605
- Coordinates
- 41.88356, -87.63964
Within ~1 km
Nearby benchmarked buildings
- theMART, Chicagoscore —
Office · 4,131,093 sq ft
- 10/30 South Wackerscore 72
Office · 3,014,304 sq ft
- 320 South Canalscore —
Office · 1,797,756 sq ft
- RICHARD J. DALEY CENTERscore 68
Courthouse · 1,541,766 sq ft
- Harris Bank Buildingscore —
Building · 1,526,102 sq ft
- 540 West Madisonscore 73
Financial Office · 1,222,281 sq ft
See also: most efficient in Chicago · biggest emitters
How does 601 South LaSalle 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 41.9 kBtu/ft² is about 40% 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 5.8 kgCO₂e/ft² is about 23% below the group average of 7.5 kgCO₂e/ft².
At 80,000 sq ft, it is about 84% below the average floor area of 488,124 sq ft for those buildings. It was built in 1917, 39 years earlier 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 601 South LaSalle's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for 601 South LaSalle, covering report years 2015–2023. Its ENERGY STAR score went from 66 in 2015 to 42 in 2019 (-24 points); its best year on file was 2015, at 66. Site EUI moved from 66.8 kBtu/ft² (2015) to 41.9 kBtu/ft² (2023), a 37% decrease. Reported emissions went from 1,074 tCO₂e to 462 tCO₂e over the same span (down 57%).
What does a site EUI of 41.9 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. 601 South LaSalle's 41.9 kBtu/ft² across 80,000 sq ft works out to about 3.4 billion Btu (982 MWh-equivalent) in 2023. Its source EUI of 115.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 957,805 kWh of electricity and 875 therms of natural gas for the year.
Which law requires 601 South LaSalle to report its energy use?
601 South LaSalle 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:156549:2023). 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
- 57 63 W Grand Ave· 78,868 sq ft · score 49 (D)
- 750 N Orleans Street· 78,800 sq ft · score 55 (C)
- 130 S Jefferson· 78,794 sq ft · EUI 79.7 kBtu/ft²
- 118 S Clinton· 78,751 sq ft · score 29 (D)
- Salvation Army - Divisional HeadOuarters (DHO)· 75,852 sq ft · EUI 95.8 kBtu/ft²
- 833 West Jackson· 74,272 sq ft · EUI 47.0 kBtu/ft²
- 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 601 South LaSalle's energy grade?
601 South LaSalle did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 41.9 kBtu/ft².
How much energy does 601 South LaSalle use?
Its 2023 site energy-use intensity was 41.9 kBtu/ft² (115.5 kBtu/ft² source) across 80,000 sq ft, including 957,805 kWh of electricity and 875 therms of natural gas.
What are 601 South LaSalle's carbon emissions?
601 South LaSalle reported 462 tCO₂e of greenhouse-gas emissions (5.8 kgCO₂e/ft²) for 2023.
Where is 601 South LaSalle?
601 South LaSalle is at 601 South Lasalle Street, in Chicago, Illinois 60605. Its coordinates are 41.88356, -87.63964 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 601 South LaSalle and when was it built?
601 South LaSalle has 80,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1917 as its year built. It is classed as office.
Is 601 South LaSalle 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.
Working with Chicago building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “601 South LaSalle, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/601-south-lasalle-6d60e847 (data as of October 2, 2026).