At a glance
633 N St. Clair is a 632,163-square-foot office building in Chicago, Illinois, built in 1991. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 89 out of 100 (grade A), a site energy-use intensity of 34.8 kBtu/ft² and 3,080 tCO₂e of greenhouse-gas emissions. That score is higher than 88% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 89 (band A) |
| Site EUI | 34.8 kBtu/ft² |
| Source EUI | 97.5 kBtu/ft² |
| GHG emissions | 3,080 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 6,448,985 kWh |
| Natural gas | 144 therms |
| Gross floor area | 632,163 sq ft |
| Source record | chicago:160211:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 89 | +1 | 34.8 kBtu/ft² | 3,080 tCO₂e |
| 2022 | 88 | -6 | 37.0 kBtu/ft² | 3,077 tCO₂e |
| 2021 | 94 | -3 | 29.2 kBtu/ft² | 2,623 tCO₂e |
| 2020 | 97 | +15 | 22.9 kBtu/ft² | 2,252 tCO₂e |
| 2019 | 82 | +7 | 42.9 kBtu/ft² | — |
| 2018 | 75 | +16 | 44.2 kBtu/ft² | 4,649 tCO₂e |
| 2017 | 59 | +6 | 73.0 kBtu/ft² | 8,537 tCO₂e |
| 2016 | 53 | +9 | 78.7 kBtu/ft² | 9,176 tCO₂e |
| 2015 | 44 | 85.0 kBtu/ft² | 10,798 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
- 633 N St. Clair
- City
- Chicago
- State
- Illinois
- ZIP
- 60611
- Coordinates
- 41.74715, -87.62800
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does 633 N St. Clair compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 633 N St. Clair's ENERGY STAR score of 89 compares with an average of 69 across the 320 that report a score; it scores higher than 88% of them and lower than 11%. Its site EUI of 34.8 kBtu/ft² is about half of 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 4.9 kgCO₂e/ft² is about 35% below the group average of 7.5 kgCO₂e/ft².
At 632,163 sq ft, it is about 30% above the average floor area of 488,124 sq ft for those buildings. It was built in 1991, 35 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 633 N St. Clair's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for 633 N St. Clair, covering report years 2015–2023. Its ENERGY STAR score went from 44 in 2015 to 89 in 2023 (+45 points); its best year on file was 2020, at 97. Site EUI moved from 85.0 kBtu/ft² (2015) to 34.8 kBtu/ft² (2023), a 59% decrease. Reported emissions went from 10,798 tCO₂e to 3,080 tCO₂e over the same span (down 71%).
What does an ENERGY STAR score of 89 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 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 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. 633 N St. Clair's 34.8 kBtu/ft² across 632,163 sq ft works out to about 22 billion Btu (6,447 MWh-equivalent) in 2023. Its source EUI of 97.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 6,448,985 kWh of electricity and 144 therms of natural gas for the year.
Which law requires 633 N St. Clair to report its energy use?
633 N St. Clair 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:160211:2023). 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
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- 333 N. Green· 622,736 sq ft · score 77 (B)
- The Jewelers Building· 621,390 sq ft · score 72 (B)
- AG 300 South Wacker Owner LLC· 598,410 sq ft · score 83 (B)
- Burnham Center· 597,773 sq ft · score 78 (B)
- The National· 580,000 sq ft · score 79 (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 633 N St. Clair's energy grade?
633 N St. Clair scores 89 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 633 N St. Clair use?
Its 2023 site energy-use intensity was 34.8 kBtu/ft² (97.5 kBtu/ft² source) across 632,163 sq ft, including 6,448,985 kWh of electricity and 144 therms of natural gas.
What are 633 N St. Clair's carbon emissions?
633 N St. Clair reported 3,080 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2023.
Where is 633 N St. Clair?
633 N St. Clair is in Chicago, Illinois 60611. Its coordinates are 41.74715, -87.62800 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 633 N St. Clair and when was it built?
633 N St. Clair has 632,163 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1991 as its year built. It is classed as office.
Is 633 N St. Clair 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, “633 N St. Clair, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/633-n-st-clair-3259b6f6 (data as of October 2, 2026).