At a glance
10/30 South Wacker is a 3,014,304-square-foot office building at 10 S Wacker Dr in Chicago, Illinois, built in 1983. In its 2022 Chicago benchmarking disclosure it reported an ENERGY STAR score of 72 out of 100 (grade B), a site energy-use intensity of 49.0 kBtu/ft² and 18,395 tCO₂e of greenhouse-gas emissions. That score is higher than 43% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 49.0 kBtu/ft² |
| Source EUI | 135.7 kBtu/ft² |
| GHG emissions | 18,395 tCO₂e |
| GHG intensity | 6.4 kgCO₂e/ft² |
| Electricity | 40,627,327 kWh |
| Natural gas | 24,159 therms |
| Gross floor area | 3,014,304 sq ft |
| Source record | chicago:101770:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 72 | +4 | 49.0 kBtu/ft² | 18,395 tCO₂e |
| 2021 | 68 | -7 | 50.7 kBtu/ft² | 20,681 tCO₂e |
| 2020 | 75 | +2 | 45.7 kBtu/ft² | 20,376 tCO₂e |
| 2019 | 73 | +15 | 54.9 kBtu/ft² | — |
| 2018 | 58 | -13 | 61.0 kBtu/ft² | 26,769 tCO₂e |
| 2017 | 71 | -6 | 69.2 kBtu/ft² | 33,766 tCO₂e |
| 2016 | 77 | -5 | 68.7 kBtu/ft² | 33,428 tCO₂e |
| 2015 | 82 | -3 | 67.4 kBtu/ft² | 35,677 tCO₂e |
| 2014 | 85 | 63.0 kBtu/ft² | 33,531 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
- 10 S Wacker Dr
- City
- Chicago
- State
- Illinois
- ZIP
- 60606
- Coordinates
- 41.88172, -87.63716
Within ~1 km
Nearby benchmarked buildings
- theMART, Chicagoscore —
Office · 4,131,093 sq ft
- Chase Tower Chicagoscore —
Financial Office · 2,521,929 sq ft
- AMA Plazascore 58
Office · 1,870,680 sq ft
- 320 South Canalscore —
Office · 1,797,756 sq ft
Multifamily Housing · 1,558,561 sq ft
- Harris Bank Buildingscore —
Building · 1,526,102 sq ft
See also: most efficient in Chicago · biggest emitters
How does 10/30 South Wacker compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 10/30 South Wacker's ENERGY STAR score of 72 compares with an average of 69 across the 320 that report a score; it scores higher than 43% of them and lower than 54%. Its site EUI of 49.0 kBtu/ft² is about 30% 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 6.4 kgCO₂e/ft² is about 15% below the group average of 7.5 kgCO₂e/ft².
At 3,014,304 sq ft, it is about 518% above the average floor area of 488,124 sq ft for those buildings. It was built in 1983, 27 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 10/30 South Wacker's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for 10/30 South Wacker, covering report years 2014–2022. Its ENERGY STAR score went from 85 in 2014 to 72 in 2022 (-13 points); its best year on file was 2014, at 85. Site EUI moved from 63.0 kBtu/ft² (2014) to 49.0 kBtu/ft² (2022), a 22% decrease. Reported emissions went from 33,531 tCO₂e to 18,395 tCO₂e over the same span (down 45%).
What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 points below 75, the threshold for ENERGY STAR certification. 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. 10/30 South Wacker's 49.0 kBtu/ft² across 3,014,304 sq ft works out to about 147.7 billion Btu (43,287 MWh-equivalent) in 2022. Its source EUI of 135.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 40,627,327 kWh of electricity and 24,159 therms of natural gas for the year.
Which law requires 10/30 South Wacker to report its energy use?
10/30 South Wacker 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 2022 disclosure (source record chicago:101770:2022). 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 Franklin (227 West Monroe; 222 West Adams)· 2,967,721 sq ft · score 88 (A)
- OneTwoPru· 2,751,035 sq ft · score 80 (B)
- Old Post Office· 2,493,160 sq ft · score 88 (A)
- 135 S LaSalle Property LLC· 2,453,127 sq ft · EUI 51.1 kBtu/ft²
- 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)
- 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 10/30 South Wacker's energy grade?
10/30 South Wacker scores 72 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2022 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 10/30 South Wacker use?
Its 2022 site energy-use intensity was 49.0 kBtu/ft² (135.7 kBtu/ft² source) across 3,014,304 sq ft, including 40,627,327 kWh of electricity and 24,159 therms of natural gas.
What are 10/30 South Wacker's carbon emissions?
10/30 South Wacker reported 18,395 tCO₂e of greenhouse-gas emissions (6.4 kgCO₂e/ft²) for 2022.
Where is 10/30 South Wacker?
10/30 South Wacker is at 10 S Wacker Dr, in Chicago, Illinois 60606. Its coordinates are 41.88172, -87.63716 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is 10/30 South Wacker and when was it built?
10/30 South Wacker has 3,014,304 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1983 as its year built. It is classed as office.
Is 10/30 South Wacker covered by the Building Energy Use Benchmarking Ordinance?
Yes — it appears in the 2022 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, “10/30 South Wacker, Chicago, Illinois — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/10-30-south-wacker-0122fa36 (data as of October 2, 2026).