Hmc Group Ontario
Office in California, CA · 3546 Concours Street, Ontario · 91764
At a glance
Hmc Group Ontario is a 56,668-square-foot office building at 3546 Concours Street, Ontario in Ontario, California, built in 2007. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 37 out of 100 (grade D), a site energy-use intensity of 97.9 kBtu/ft² and 344 tCO₂e of greenhouse-gas emissions. That score is higher than 11% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 37 (band D) |
| Site EUI | 97.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 344 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 817,647 kWh |
| Natural gas | 27,526 therms |
| Gross floor area | 56,668 sq ft |
| Source record | california:34656572:2023 |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 3546 Concours Street, Ontario
- City
- California
- State
- California
- ZIP
- 91764
- Coordinates
- 34.07351, -117.57206
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Hmc Group Ontario compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Hmc Group Ontario's ENERGY STAR score of 37 compares with an average of 75 across the 4,912 that report a score; it scores higher than 11% of them and lower than 89%. Its site EUI of 97.9 kBtu/ft² is about 74% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.1 kgCO₂e/ft² is about 69% above the group average of 3.6 kgCO₂e/ft².
At 56,668 sq ft, it is about 63% below the average floor area of 151,937 sq ft for those buildings. It was built in 2007, 22 years later than the group's average year built (1985). 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.
What does an ENERGY STAR score of 37 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 37 means the building performs better than about 37% of its national peers. BuildingCensus bands the score into report-card grades; 37 falls in band D — lowest band (1–54). It sits 38 points below 75, the threshold for ENERGY STAR certification. In California, 65% 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. Hmc Group Ontario's 97.9 kBtu/ft² across 56,668 sq ft works out to about 5.5 billion Btu (1,626 MWh-equivalent) in 2023. The disclosure also reports 817,647 kWh of electricity and 27,526 therms of natural gas for the year.
Which law requires Hmc Group Ontario to report its energy use?
Hmc Group Ontario reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2023 disclosure (source record california:34656572:2023). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
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- Office buildings in California· 6,214 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is Hmc Group Ontario's energy grade?
Hmc Group Ontario scores 37 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Hmc Group Ontario use?
Its 2023 site energy-use intensity was 97.9 kBtu/ft² across 56,668 sq ft, including 817,647 kWh of electricity and 27,526 therms of natural gas.
What are Hmc Group Ontario's carbon emissions?
Hmc Group Ontario reported 344 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2023.
Where is Hmc Group Ontario?
Hmc Group Ontario is at 3546 Concours Street, Ontario, in Ontario, California 91764. Its coordinates are 34.07351, -117.57206 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Hmc Group Ontario and when was it built?
Hmc Group Ontario has 56,668 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2007 as its year built. It is classed as office.
Is Hmc Group Ontario covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Hmc Group Ontario, Ontario, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hmc-group-ontario-bd276822 (data as of July 9, 2026).