At a glance
343 W Erie St is a 85,700-square-foot office building at 343 W Erie Street in Chicago, Illinois, built in 1910. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 19.5 kBtu/ft² and 232 tCO₂e of greenhouse-gas emissions. That score is higher than 97% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 19.5 kBtu/ft² |
| Source EUI | 54.1 kBtu/ft² |
| GHG emissions | 232 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 482,152 kWh |
| Natural gas | 266 therms |
| Gross floor area | 85,700 sq ft |
| Source record | chicago:252218:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 96 | -1 | 19.5 kBtu/ft² | 232 tCO₂e |
| 2022 | 97 | +3 | 17.1 kBtu/ft² | 277 tCO₂e |
| 2021 | 94 | -1 | 22.7 kBtu/ft² | 275 tCO₂e |
| 2020 | 95 | +14 | 22.2 kBtu/ft² | 294 tCO₂e |
| 2019 | 81 | +5 | 56.5 kBtu/ft² | 625 tCO₂e |
| 2018 | 76 | +15 | 57.7 kBtu/ft² | 622 tCO₂e |
| 2016 | 61 | 78.1 kBtu/ft² | 988 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
- 343 W Erie Street
- City
- Chicago
- State
- Illinois
- ZIP
- 60654
- Coordinates
- 41.95552, -87.67368
Within ~1 km
Nearby benchmarked buildings
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- Pendry Chicagoscore 31
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- Edith Spurlock Sampson Aptsscore 56
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- Hotel Monaco Chicagoscore 25
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See also: most efficient in Chicago · biggest emitters
How does 343 W Erie St compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 343 W Erie St's ENERGY STAR score of 96 compares with an average of 69 across the 320 that report a score; it scores higher than 97% of them and lower than 2%. Its site EUI of 19.5 kBtu/ft² is about 72% 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 2.7 kgCO₂e/ft² is about 64% below the group average of 7.5 kgCO₂e/ft².
At 85,700 sq ft, it is about 82% below the average floor area of 488,124 sq ft for those buildings. It was built in 1910, 46 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 343 W Erie St's energy performance changed over time?
BuildingCensus holds 7 Chicago disclosures for 343 W Erie St, covering report years 2016, 2018, 2019, 2020, 2021, 2022, 2023. Its ENERGY STAR score went from 61 in 2016 to 96 in 2023 (+35 points); its best year on file was 2022, at 97. Site EUI moved from 78.1 kBtu/ft² (2016) to 19.5 kBtu/ft² (2023), a 75% decrease. Reported emissions went from 988 tCO₂e to 232 tCO₂e over the same span (down 77%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 falls in band A — high performer (85–100). 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. 343 W Erie St's 19.5 kBtu/ft² across 85,700 sq ft works out to about 1.7 billion Btu (490 MWh-equivalent) in 2023. Its source EUI of 54.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 482,152 kWh of electricity and 266 therms of natural gas for the year.
Which law requires 343 W Erie St to report its energy use?
343 W Erie St 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:252218:2023). 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
- 2229 South Halsted· 85,007 sq ft · score 59 (C)
- Parish_OuigleyCenter· 84,100 sq ft · score 46 (D)
- 133 N Jefferson· 83,000 sq ft · score 73 (B)
- Lurie Children's Faculty Office Building· 82,717 sq ft · score 53 (D)
- Adlake Limited Partnership· 81,000 sq ft · score 72 (B)
- Rice Building· 80,610 sq ft · score 58 (C)
- 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 343 W Erie St's energy grade?
343 W Erie St scores 96 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 343 W Erie St use?
Its 2023 site energy-use intensity was 19.5 kBtu/ft² (54.1 kBtu/ft² source) across 85,700 sq ft, including 482,152 kWh of electricity and 266 therms of natural gas.
What are 343 W Erie St's carbon emissions?
343 W Erie St reported 232 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2023.
Where is 343 W Erie St?
343 W Erie St is at 343 W Erie Street, in Chicago, Illinois 60654. Its coordinates are 41.95552, -87.67368 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 343 W Erie St and when was it built?
343 W Erie St has 85,700 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1910 as its year built. It is classed as office.
Is 343 W Erie St 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, “343 W Erie St, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/343-w-erie-st-99cbb69e (data as of October 2, 2026).