At a glance
135 S LaSalle Property LLC is a 2,453,127-square-foot office building at 135 S. Lasalle Street in Chicago, Illinois, built in 1934. In its 2023 Chicago benchmarking disclosure it reported a site energy-use intensity of 51.1 kBtu/ft² and 9,880 tCO₂e of greenhouse-gas emissions.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 51.1 kBtu/ft² |
| Source EUI | 79.2 kBtu/ft² |
| GHG emissions | 9,880 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 10,919,233 kWh |
| Natural gas | 700,415 therms |
| Gross floor area | 2,453,127 sq ft |
| Source record | chicago:103647:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 51.1 kBtu/ft² | 9,880 tCO₂e | |
| 2022 | 82 | +21 | 55.5 kBtu/ft² | 9,969 tCO₂e |
| 2021 | 61 | +6 | 82.4 kBtu/ft² | 10,108 tCO₂e |
| 2020 | 55 | ±0 | 90.1 kBtu/ft² | 11,970 tCO₂e |
| 2019 | 55 | +6 | 111.8 kBtu/ft² | 15,871 tCO₂e |
| 2018 | 49 | -23 | 113.0 kBtu/ft² | 16,192 tCO₂e |
| 2017 | 72 | +1 | 113.6 kBtu/ft² | 18,076 tCO₂e |
| 2016 | 71 | +1 | 113.1 kBtu/ft² | 18,606 tCO₂e |
| 2015 | 70 | +2 | 112.2 kBtu/ft² | 19,836 tCO₂e |
| 2014 | 68 | 126.0 kBtu/ft² | 21,362 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
- 135 S. Lasalle Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60603
- Coordinates
- 41.91342, -87.67006
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 135 S LaSalle Property LLC 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 51.1 kBtu/ft² is about 27% 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 4.0 kgCO₂e/ft² is about half of the group average of 7.5 kgCO₂e/ft².
At 2,453,127 sq ft, it is about 403% above the average floor area of 488,124 sq ft for those buildings. It was built in 1934, 22 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 135 S LaSalle Property LLC's energy performance changed over time?
BuildingCensus holds 10 Chicago disclosures for 135 S LaSalle Property LLC, covering report years 2014–2023. Its ENERGY STAR score went from 68 in 2014 to 82 in 2022 (+14 points). Site EUI moved from 126.0 kBtu/ft² (2014) to 51.1 kBtu/ft² (2023), a 59% decrease. Reported emissions went from 21,362 tCO₂e to 9,880 tCO₂e over the same span (down 54%).
What does a site EUI of 51.1 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. 135 S LaSalle Property LLC's 51.1 kBtu/ft² across 2,453,127 sq ft works out to about 125.4 billion Btu (36,738 MWh-equivalent) in 2023. Its source EUI of 79.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 10,919,233 kWh of electricity and 700,415 therms of natural gas for the year.
Which law requires 135 S LaSalle Property LLC to report its energy use?
135 S LaSalle Property LLC 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:103647:2023). 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
- 600 West Chicago & 900 N Kingsbury· 2,376,470 sq ft · score 39 (D)
- CH3 - Chicago 300 E Randolph· 2,224,842 sq ft · score 75 (B)
- 350 North Orleans (Rivion LLC)· 1,883,966 sq ft · score 61 (C)
- AMA Plaza· 1,870,680 sq ft · score 58 (C)
- Michigan Plaza· 1,867,610 sq ft · score 43 (D)
- Accenture Tower· 1,855,810 sq ft · score 70 (B)
- 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 135 S LaSalle Property LLC's energy grade?
135 S LaSalle Property LLC did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 51.1 kBtu/ft².
How much energy does 135 S LaSalle Property LLC use?
Its 2023 site energy-use intensity was 51.1 kBtu/ft² (79.2 kBtu/ft² source) across 2,453,127 sq ft, including 10,919,233 kWh of electricity and 700,415 therms of natural gas.
What are 135 S LaSalle Property LLC's carbon emissions?
135 S LaSalle Property LLC reported 9,880 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2023.
Where is 135 S LaSalle Property LLC?
135 S LaSalle Property LLC is at 135 S. Lasalle Street, in Chicago, Illinois 60603. Its coordinates are 41.91342, -87.67006 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 135 S LaSalle Property LLC and when was it built?
135 S LaSalle Property LLC has 2,453,127 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1934 as its year built. It is classed as office.
Is 135 S LaSalle Property LLC 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, “135 S LaSalle Property LLC, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/135-s-lasalle-property-llc-2937e7b5 (data as of October 2, 2026).