At a glance
333 N. Green is a 622,736-square-foot office building in Chicago, Illinois, built in 2019. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 54.8 kBtu/ft² and 4,428 tCO₂e of greenhouse-gas emissions. That score is higher than 57% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 54.8 kBtu/ft² |
| Source EUI | 142.2 kBtu/ft² |
| GHG emissions | 4,428 tCO₂e |
| GHG intensity | 7.1 kgCO₂e/ft² |
| Electricity | 8,832,792 kWh |
| Natural gas | 39,733 therms |
| Water use | 5,485 kgal |
| Gross floor area | 622,736 sq ft |
| Source record | chicago:254616:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 77 | +1 | 54.8 kBtu/ft² | 4,428 tCO₂e |
| 2022 | 76 | +30 | 57.2 kBtu/ft² | 4,281 tCO₂e |
| 2021 | 46 | -3 | 58.9 kBtu/ft² | 4,443 tCO₂e |
| 2020 | 49 | 55.5 kBtu/ft² | 4,581 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 333 N. Green
- City
- Chicago
- State
- Illinois
- ZIP
- 60607
- Coordinates
- 41.93782, -87.64099
Within ~1 km
Nearby benchmarked buildings
- 900 North Michiganscore —
Mixed Use Property · 2,136,748 sq ft
- One North Wackerscore 80
Office · 1,614,398 sq ft
- 300 North LaSallescore 71
Office · 1,506,959 sq ft
- 111 South Wackerscore 72
Office · 1,248,730 sq ft
- Altgeld Gardensscore 12
Multifamily Housing · 1,182,400 sq ft
- 30 North LaSalle Streetscore 82
Office · 1,095,104 sq ft
See also: most efficient in Chicago · biggest emitters
How does 333 N. Green compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 333 N. Green's ENERGY STAR score of 77 compares with an average of 69 across the 320 that report a score; it scores higher than 57% of them and lower than 40%. Its site EUI of 54.8 kBtu/ft² is about 22% 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 7.1 kgCO₂e/ft² is roughly in line with the group average of 7.5 kgCO₂e/ft².
At 622,736 sq ft, it is about 28% above the average floor area of 488,124 sq ft for those buildings. It was built in 2019, 63 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 333 N. Green's energy performance changed over time?
BuildingCensus holds 6 Chicago disclosures for 333 N. Green, covering report years 2018–2023. Its ENERGY STAR score went from 49 in 2020 to 77 in 2023 (+28 points). Site EUI moved from 55.5 kBtu/ft² (2020) to 54.8 kBtu/ft² (2023), a 1% decrease. Reported emissions went from 4,581 tCO₂e to 4,428 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 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. 333 N. Green's 54.8 kBtu/ft² across 622,736 sq ft works out to about 34.1 billion Btu (10,001 MWh-equivalent) in 2023. Its source EUI of 142.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,832,792 kWh of electricity, 39,733 therms of natural gas and 5,485 thousand gallons of water for the year.
Which law requires 333 N. Green to report its energy use?
333 N. Green 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:254616:2023). 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
- 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)
- 701190 - 1000 West Fulton Market - OPI· 563,066 sq ft · score 87 (A)
- 123 N Wacker· 555,996 sq ft · score 73 (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 333 N. Green's energy grade?
333 N. Green scores 77 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 333 N. Green use?
Its 2023 site energy-use intensity was 54.8 kBtu/ft² (142.2 kBtu/ft² source) across 622,736 sq ft, including 8,832,792 kWh of electricity and 39,733 therms of natural gas.
What are 333 N. Green's carbon emissions?
333 N. Green reported 4,428 tCO₂e of greenhouse-gas emissions (7.1 kgCO₂e/ft²) for 2023.
Where is 333 N. Green?
333 N. Green is in Chicago, Illinois 60607. Its coordinates are 41.93782, -87.64099 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 333 N. Green and when was it built?
333 N. Green has 622,736 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2019 as its year built. It is classed as office.
Is 333 N. Green 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, “333 N. Green, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/333-n-green-46a1f1f9 (data as of October 2, 2026).