Iron Horse Middle
K-12 School in California, CA · 12601 Alcosta Blvd., San Ramon · 94583
At a glance
Iron Horse Middle is a 90,895-square-foot K-12 school at 12601 Alcosta Blvd., San Ramon in San Ramon, California, built in 1996. In its 2021 California benchmarking disclosure it reported an ENERGY STAR score of 44 out of 100 (grade D), a site energy-use intensity of 45.0 kBtu/ft² and 231 tCO₂e of greenhouse-gas emissions. That score is higher than 12% of the 2,016 scored K-12 school buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 44 (band D) |
| Site EUI | 45.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 231 tCO₂e |
| GHG intensity | 2.5 kgCO₂e/ft² |
| Electricity | 630,911 kWh |
| Natural gas | 19,026 therms |
| Gross floor area | 90,895 sq ft |
| Source record | california:19917254:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | 44 | -35 | 45.0 kBtu/ft² | 231 tCO₂e |
| 2020 | 79 | 29.9 kBtu/ft² | 154 tCO₂e |
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
- 12601 Alcosta Blvd., San Ramon
- City
- California
- State
- California
- ZIP
- 94583
- Coordinates
- 37.77078, -121.95762
Within ~1 km
Nearby benchmarked buildings
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- San Ramon Marriottscore 84
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- Bishop Ranch 7score 100
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- 337M2-San Ramon Marriottscore 72
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- Bishop Ranch 3 Hhscore 95
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See also: most efficient in California · biggest emitters
How does Iron Horse Middle compare with other K-12 school buildings in California?
The latest disclosures cover 2,128 K-12 school buildings in California, out of 40,029 buildings citywide. Iron Horse Middle's ENERGY STAR score of 44 compares with an average of 74 across the 2,016 that report a score; it scores higher than 12% of them and lower than 87%. Its site EUI of 45.0 kBtu/ft² is about 30% above the average of 34.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.5 kgCO₂e/ft² is about 25% above the group average of 2.0 kgCO₂e/ft².
At 90,895 sq ft, it is about 30% below the average floor area of 129,123 sq ft for those buildings. It was built in 1996, 20 years later than the group's average year built (1976). 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 Iron Horse Middle's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Iron Horse Middle, covering report years 2020–2021. Its ENERGY STAR score went from 79 in 2020 to 44 in 2021 (-35 points); its best year on file was 2020, at 79. Site EUI moved from 29.9 kBtu/ft² (2020) to 45.0 kBtu/ft² (2021), an 51% increase. Reported emissions went from 154 tCO₂e to 231 tCO₂e over the same span (up 50%).
What does an ENERGY STAR score of 44 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 44 means the building performs better than about 44% of its national peers. BuildingCensus bands the score into report-card grades; 44 falls in band D — lowest band (1–54). It sits 31 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. Iron Horse Middle's 45.0 kBtu/ft² across 90,895 sq ft works out to about 4.1 billion Btu (1,199 MWh-equivalent) in 2021. The disclosure also reports 630,911 kWh of electricity and 19,026 therms of natural gas for the year.
Which law requires Iron Horse Middle to report its energy use?
Iron Horse Middle 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 2021 disclosure (source record california:19917254:2021). 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.
More K-12 school buildings in California
- Home Gardens Academy· 90,894 sq ft · score 75 (B)
- Mira Loma Middle School· 90,774 sq ft · score 96 (A)
- Mills Middle School· 90,733 sq ft · score 28 (D)
- Cathedral City Elementary· 90,675 sq ft · score 99 (A)
- 540 East Main Street - Ab802· 90,633 sq ft · EUI 40.8 kBtu/ft²
- Hamilton K-8 School· 90,606 sq ft · score 50 (D)
- K-12 School buildings in California· 2,128 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 Iron Horse Middle's energy grade?
Iron Horse Middle scores 44 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2021 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Iron Horse Middle use?
Its 2021 site energy-use intensity was 45.0 kBtu/ft² across 90,895 sq ft, including 630,911 kWh of electricity and 19,026 therms of natural gas.
What are Iron Horse Middle's carbon emissions?
Iron Horse Middle reported 231 tCO₂e of greenhouse-gas emissions (2.5 kgCO₂e/ft²) for 2021.
Where is Iron Horse Middle?
Iron Horse Middle is at 12601 Alcosta Blvd., San Ramon, in San Ramon, California 94583. Its coordinates are 37.77078, -121.95762 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Iron Horse Middle and when was it built?
Iron Horse Middle has 90,895 sq ft of gross floor area, as reported in its 2021 disclosure. The disclosure lists 1996 as its year built. It is classed as K-12 school.
Is Iron Horse Middle covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2021 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, “Iron Horse Middle, San Ramon, California — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/california/iron-horse-middle-a5418226 (data as of July 9, 2026).