Mariposa Gardens: Mariposa Garden Apartments
Multifamily Housing in California, CA · 2445 Mariposa Street, San Francisco · 94110
At a glance
Mariposa Gardens: Mariposa Garden Apartments is a 76,394-square-foot multifamily housing building at 2445 Mariposa Street, San Francisco in San Francisco, California, built in 1983. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 27.0 kBtu/ft² and 119 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 27.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 119 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 158,826 kWh |
| Natural gas | 15,582 therms |
| Gross floor area | 76,394 sq ft |
| Source record | california:12071469:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 27.0 kBtu/ft² | 119 tCO₂e |
| 2023 | 99 | -1 | 29.7 kBtu/ft² | 131 tCO₂e |
| 2022 | 100 | +3 | 26.6 kBtu/ft² | 118 tCO₂e |
| 2021 | 97 | ±0 | 32.5 kBtu/ft² | 136 tCO₂e |
| 2020 | 97 | -2 | 33.1 kBtu/ft² | 141 tCO₂e |
| 2019 | 99 | 31.3 kBtu/ft² | 135 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
- 2445 Mariposa Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94110
- Coordinates
- 37.76302, -122.40786
Within ~1 km
Nearby benchmarked buildings
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- The Portrero Owner Associationscore 89
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- 888 07TH STscore —
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Multifamily Housing · 369,000 sq ft
See also: most efficient in California · biggest emitters
How does Mariposa Gardens: Mariposa Garden Apartments compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. Mariposa Gardens: Mariposa Garden Apartments's ENERGY STAR score of 100 compares with an average of 82 across the 9,612 that report a score; it scores higher than 76% of them. Its site EUI of 27.0 kBtu/ft² is about 22% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.6 kgCO₂e/ft² is about 26% below the group average of 2.1 kgCO₂e/ft².
At 76,394 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 1983, 5 years earlier than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Mariposa Gardens: Mariposa Garden Apartments's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Mariposa Gardens: Mariposa Garden Apartments, covering report years 2019–2024. Its ENERGY STAR score went from 99 in 2019 to 100 in 2024 (+1 points); its best year on file was 2022, at 100. Site EUI moved from 31.3 kBtu/ft² (2019) to 27.0 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 135 tCO₂e to 119 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Mariposa Gardens: Mariposa Garden Apartments's 27.0 kBtu/ft² across 76,394 sq ft works out to about 2.1 billion Btu (604 MWh-equivalent) in 2024. The disclosure also reports 158,826 kWh of electricity and 15,582 therms of natural gas for the year.
Which law requires Mariposa Gardens: Mariposa Garden Apartments to report its energy use?
Mariposa Gardens: Mariposa Garden Apartments 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:12071469:2024). 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 multifamily housing buildings in California
- 5830 Reseda Apartments· 76,385 sq ft · score 39 (D)
- Windsor Gardens (Wn110)· 76,384 sq ft · score 4 (D)
- 18 Lansing Street Owners' Association· 76,374 sq ft · score 98 (A)
- Lincoln Court· 76,348 sq ft · score 78 (B)
- San Clemente - Total· 76,339 sq ft · score 100 (A)
- 27301 Camp Plenty Rd· 76,332 sq ft · score 100 (A)
- Multifamily Housing buildings in California· 10,630 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 Mariposa Gardens: Mariposa Garden Apartments's energy grade?
Mariposa Gardens: Mariposa Garden Apartments scores 100 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 Mariposa Gardens: Mariposa Garden Apartments use?
Its 2024 site energy-use intensity was 27.0 kBtu/ft² across 76,394 sq ft, including 158,826 kWh of electricity and 15,582 therms of natural gas.
What are Mariposa Gardens: Mariposa Garden Apartments's carbon emissions?
Mariposa Gardens: Mariposa Garden Apartments reported 119 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2024.
Where is Mariposa Gardens: Mariposa Garden Apartments?
Mariposa Gardens: Mariposa Garden Apartments is at 2445 Mariposa Street, San Francisco, in San Francisco, California 94110. Its coordinates are 37.76302, -122.40786 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Mariposa Gardens: Mariposa Garden Apartments and when was it built?
Mariposa Gardens: Mariposa Garden Apartments has 76,394 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1983 as its year built. It is classed as multifamily housing.
Is Mariposa Gardens: Mariposa Garden Apartments 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, “Mariposa Gardens: Mariposa Garden Apartments, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/mariposa-gardens-mariposa-garden-apartments-541d18f3 (data as of July 9, 2026).