Buena Vista / Horace Mann
K-12 School in California, CA · 3351 23Rd St, San Francisco · 94110
At a glance
Buena Vista / Horace Mann is a 68,000-square-foot K-12 school at 3351 23Rd St, San Francisco in San Francisco, California, built in 1924. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 34 out of 100 (grade D), a site energy-use intensity of 79.9 kBtu/ft² and 310 tCO₂e of greenhouse-gas emissions. That score is higher than 8% of the 2,016 scored K-12 school buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 34 (band D) |
| Site EUI | 79.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 310 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 222,041 kWh |
| Natural gas | 48,171 therms |
| Gross floor area | 68,000 sq ft |
| Source record | california:3594350:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 34 | +13 | 79.9 kBtu/ft² | 310 tCO₂e |
| 2021 | 21 | -27 | 99.2 kBtu/ft² | 368 tCO₂e |
| 2020 | 48 | +23 | 76.6 kBtu/ft² | 267 tCO₂e |
| 2019 | 25 | 89.1 kBtu/ft² | 331 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
- 3351 23Rd St, San Francisco
- City
- California
- State
- California
- ZIP
- 94110
- Coordinates
- 37.75374, -122.41915
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Buena Vista / Horace Mann 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. Buena Vista / Horace Mann's ENERGY STAR score of 34 compares with an average of 74 across the 2,016 that report a score; it scores higher than 8% of them and lower than 92%. Its site EUI of 79.9 kBtu/ft² is about 131% 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 4.6 kgCO₂e/ft² is about 130% above the group average of 2.0 kgCO₂e/ft².
At 68,000 sq ft, it is about half of the average floor area of 129,123 sq ft for those buildings. It was built in 1924, 52 years earlier 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 Buena Vista / Horace Mann's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Buena Vista / Horace Mann, covering report years 2019–2022. Its ENERGY STAR score went from 25 in 2019 to 34 in 2022 (+9 points); its best year on file was 2020, at 48. Site EUI moved from 89.1 kBtu/ft² (2019) to 79.9 kBtu/ft² (2022), a 10% decrease. Reported emissions went from 331 tCO₂e to 310 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 34 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 34 means the building performs better than about 34% of its national peers. BuildingCensus bands the score into report-card grades; 34 falls in band D — lowest band (1–54). It sits 41 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. Buena Vista / Horace Mann's 79.9 kBtu/ft² across 68,000 sq ft works out to about 5.4 billion Btu (1,592 MWh-equivalent) in 2022. The disclosure also reports 222,041 kWh of electricity and 48,171 therms of natural gas for the year.
Which law requires Buena Vista / Horace Mann to report its energy use?
Buena Vista / Horace Mann 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 2022 disclosure (source record california:3594350:2022). 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
- George Washington Charter· 67,920 sq ft · score 98 (A)
- Emerson Elementary· 67,882 sq ft · score 67 (C)
- Standard Elementary School· 67,757 sq ft
- Rio Hondo School· 67,584 sq ft · score 84 (B)
- Bostonia Global High School· 67,568 sq ft · score 68 (C)
- Agua Caliente Elementary· 67,500 sq ft · score 80 (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 Buena Vista / Horace Mann's energy grade?
Buena Vista / Horace Mann scores 34 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Buena Vista / Horace Mann use?
Its 2022 site energy-use intensity was 79.9 kBtu/ft² across 68,000 sq ft, including 222,041 kWh of electricity and 48,171 therms of natural gas.
What are Buena Vista / Horace Mann's carbon emissions?
Buena Vista / Horace Mann reported 310 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2022.
Where is Buena Vista / Horace Mann?
Buena Vista / Horace Mann is at 3351 23Rd St, San Francisco, in San Francisco, California 94110. Its coordinates are 37.75374, -122.41915 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Buena Vista / Horace Mann and when was it built?
Buena Vista / Horace Mann has 68,000 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1924 as its year built. It is classed as K-12 school.
Is Buena Vista / Horace Mann covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “Buena Vista / Horace Mann, San Francisco, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/buena-vista-horace-mann-8379d4ca (data as of July 9, 2026).