Mount Greenwood
K-12 School in Chicago, IL · 10841 S Homan Ave · 60655
At a glance
Mount Greenwood is a 117,660-square-foot K-12 school at 10841 S Homan Ave in Chicago, Illinois, built in 1936. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 48 out of 100 (grade D), a site energy-use intensity of 59.6 kBtu/ft² and 616 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 365 scored K-12 school buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 48 (band D) |
| Site EUI | 59.6 kBtu/ft² |
| Source EUI | 104.3 kBtu/ft² |
| GHG emissions | 616 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 822,570 kWh |
| Natural gas | 42,035 therms |
| Gross floor area | 117,660 sq ft |
| Source record | chicago:251424:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 48 | -5 | 59.6 kBtu/ft² | 616 tCO₂e |
| 2022 | 53 | +6 | 67.8 kBtu/ft² | 645 tCO₂e |
| 2021 | 47 | -6 | 69.8 kBtu/ft² | 650 tCO₂e |
| 2020 | 53 | 69.6 kBtu/ft² | 637 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 43 | -40 | 79.2 kBtu/ft² | 588 tCO₂e |
| 2017 | 83 | +3 | 61.9 kBtu/ft² | 504 tCO₂e |
| 2016 | 80 | -2 | 67.3 kBtu/ft² | 531 tCO₂e |
| 2015 | 82 | 67.6 kBtu/ft² | 532 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
- 10841 S Homan Ave
- City
- Chicago
- State
- Illinois
- ZIP
- 60655
- Coordinates
- 41.90978, -87.72597
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does Mount Greenwood compare with other K-12 school buildings in Chicago?
The latest disclosures cover 543 K-12 school buildings in Chicago, out of 3,852 buildings citywide. Mount Greenwood's ENERGY STAR score of 48 compares with an average of 45 across the 365 that report a score; it scores higher than 56% of them and lower than 43%. Its site EUI of 59.6 kBtu/ft² is about 18% below the average of 72.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.2 kgCO₂e/ft² is about 16% below the group average of 6.2 kgCO₂e/ft².
At 117,660 sq ft, it is roughly in line with the average floor area of 121,824 sq ft for those buildings. It was built in 1936, 7 years earlier than the group's average year built (1943). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has Mount Greenwood's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for Mount Greenwood, covering report years 2015–2023. Its ENERGY STAR score went from 82 in 2015 to 48 in 2023 (-34 points); its best year on file was 2017, at 83. Site EUI moved from 67.6 kBtu/ft² (2015) to 59.6 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 532 tCO₂e to 616 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 48 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 48 means the building performs better than about 48% of its national peers. BuildingCensus bands the score into report-card grades; 48 falls in band D — lowest band (1–54). It sits 27 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. Mount Greenwood's 59.6 kBtu/ft² across 117,660 sq ft works out to about 7 billion Btu (2,055 MWh-equivalent) in 2023. Its source EUI of 104.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 822,570 kWh of electricity and 42,035 therms of natural gas for the year.
Which law requires Mount Greenwood to report its energy use?
Mount Greenwood 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:251424:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More K-12 school buildings in Chicago
- Lyon· 117,576 sq ft · score 25 (D)
- Beaubien· 117,451 sq ft · score 62 (C)
- Brentano· 117,104 sq ft · score 75 (B)
- Rickover Military HS· 117,000 sq ft · score 76 (B)
- Lincoln· 115,536 sq ft · score 66 (C)
- Prieto· 115,458 sq ft · score 56 (C)
- K-12 School buildings in Chicago· 543 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 Mount Greenwood's energy grade?
Mount Greenwood scores 48 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Mount Greenwood use?
Its 2023 site energy-use intensity was 59.6 kBtu/ft² (104.3 kBtu/ft² source) across 117,660 sq ft, including 822,570 kWh of electricity and 42,035 therms of natural gas.
What are Mount Greenwood's carbon emissions?
Mount Greenwood reported 616 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2023.
Where is Mount Greenwood?
Mount Greenwood is at 10841 S Homan Ave, in Chicago, Illinois 60655. Its coordinates are 41.90978, -87.72597 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is Mount Greenwood and when was it built?
Mount Greenwood has 117,660 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1936 as its year built. It is classed as K-12 school.
Is Mount Greenwood 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, “Mount Greenwood, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/mount-greenwood-d06859cf (data as of October 2, 2026).