Knob Hill Elementary
K-12 School in California, CA · 1825 Knob Hill Rd., San Marcos · 92069
At a glance
Knob Hill Elementary is a 64,099-square-foot K-12 school at 1825 Knob Hill Rd., San Marcos in San Marcos, California, built in 1989. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 20.8 kBtu/ft² and 46 tCO₂e of greenhouse-gas emissions. That score is higher than 75% of the 2,016 scored K-12 school buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 20.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 46 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 128,814 kWh |
| Natural gas | 3,192 therms |
| Gross floor area | 64,099 sq ft |
| Source record | california:34394191:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | -5 | 20.8 kBtu/ft² | 46 tCO₂e |
| 2023 | 99 | 23.3 kBtu/ft² | 20 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
- 1825 Knob Hill Rd., San Marcos
- City
- California
- State
- California
- ZIP
- 92069
- Coordinates
- 33.13927, -117.12084
Within ~1 km
Nearby benchmarked buildings
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- Overture San Marcosscore 90
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- Overture San Marcos - Co (Vr143)score 100
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- Costco #01080 San Marcosscore 77
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- Walmart Store #3494score 82
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See also: most efficient in California · biggest emitters
How does Knob Hill Elementary 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. Knob Hill Elementary's ENERGY STAR score of 94 compares with an average of 74 across the 2,016 that report a score; it scores higher than 75% of them and lower than 22%. Its site EUI of 20.8 kBtu/ft² is about 40% below the average of 34.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is about 64% below the group average of 2.0 kgCO₂e/ft².
At 64,099 sq ft, it is about half of the average floor area of 129,123 sq ft for those buildings. It was built in 1989, 13 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 Knob Hill Elementary's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Knob Hill Elementary, covering report years 2023–2024. Its ENERGY STAR score went from 99 in 2023 to 94 in 2024 (-5 points); its best year on file was 2023, at 99. Site EUI moved from 23.3 kBtu/ft² (2023) to 20.8 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 20 tCO₂e to 46 tCO₂e over the same span (up 134%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 falls in band A — high performer (85–100). 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 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. Knob Hill Elementary's 20.8 kBtu/ft² across 64,099 sq ft works out to about 1.3 billion Btu (391 MWh-equivalent) in 2024. The disclosure also reports 128,814 kWh of electricity and 3,192 therms of natural gas for the year.
Which law requires Knob Hill Elementary to report its energy use?
Knob Hill Elementary 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 2024 disclosure (source record california:34394191:2024). 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
- Lincoln Elementary· 64,086 sq ft · score 78 (B)
- Joli Ann Elementary· 64,049 sq ft · score 93 (A)
- Carroll Elementary· 63,963 sq ft · score 44 (D)
- Chavez Huerta· 63,947 sq ft · score 71 (B)
- Lincoln Elementary School· 63,905 sq ft · score 89 (A)
- Temescal Valley Es· 63,877 sq ft · score 83 (B)
- 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 Knob Hill Elementary's energy grade?
Knob Hill Elementary scores 94 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Knob Hill Elementary use?
Its 2024 site energy-use intensity was 20.8 kBtu/ft² across 64,099 sq ft, including 128,814 kWh of electricity and 3,192 therms of natural gas.
What are Knob Hill Elementary's carbon emissions?
Knob Hill Elementary reported 46 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024.
Where is Knob Hill Elementary?
Knob Hill Elementary is at 1825 Knob Hill Rd., San Marcos, in San Marcos, California 92069. Its coordinates are 33.13927, -117.12084 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Knob Hill Elementary and when was it built?
Knob Hill Elementary has 64,099 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1989 as its year built. It is classed as K-12 school.
Is Knob Hill Elementary covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 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, “Knob Hill Elementary, San Marcos, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/knob-hill-elementary-9b1136f8 (data as of July 9, 2026).