125 & 135 Gardenside Drive
Multifamily Housing in California, CA · 135 Gardenside Drive, San Francisco · 94131
At a glance
125 & 135 Gardenside Drive is a 54,048-square-foot multifamily housing building at 135 Gardenside Drive, San Francisco in San Francisco, California, built in 1982. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 13.5 kBtu/ft² and 51 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 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 13.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 51 tCO₂e |
| GHG intensity | 0.9 kgCO₂e/ft² |
| Electricity | 211,367 kWh |
| Gross floor area | 54,048 sq ft |
| Source record | california:12449011:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 100 | +1 | 13.5 kBtu/ft² | 51 tCO₂e |
| 2022 | 99 | -1 | 14.7 kBtu/ft² | 55 tCO₂e |
| 2021 | 100 | +1 | 13.4 kBtu/ft² | 44 tCO₂e |
| 2020 | 99 | ±0 | 14.4 kBtu/ft² | 51 tCO₂e |
| 2019 | 99 | 14.0 kBtu/ft² | 50 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
- 135 Gardenside Drive, San Francisco
- City
- California
- State
- California
- ZIP
- 94131
- Coordinates
- 37.75361, -122.44532
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 125 & 135 Gardenside Drive 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. 125 & 135 Gardenside Drive'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 13.5 kBtu/ft² is about 61% 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 0.9 kgCO₂e/ft² is about 57% below the group average of 2.1 kgCO₂e/ft².
At 54,048 sq ft, it is about 64% below the average floor area of 150,919 sq ft for those buildings. It was built in 1982, 6 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 125 & 135 Gardenside Drive's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 125 & 135 Gardenside Drive, covering report years 2019–2023. Its ENERGY STAR score went from 99 in 2019 to 100 in 2023 (+1 points); its best year on file was 2021, at 100. Site EUI moved from 14.0 kBtu/ft² (2019) to 13.5 kBtu/ft² (2023), a 4% decrease. Reported emissions went from 50 tCO₂e to 51 tCO₂e over the same span (up 3%).
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. 125 & 135 Gardenside Drive's 13.5 kBtu/ft² across 54,048 sq ft works out to about 0.7 billion Btu (214 MWh-equivalent) in 2023. The disclosure also reports 211,367 kWh of electricity for the year.
Which law requires 125 & 135 Gardenside Drive to report its energy use?
125 & 135 Gardenside Drive 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:12449011:2023). 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.
More multifamily housing buildings in California
- The Loop (Tx34)· 54,040 sq ft · score 70 (B)
- Coleman Court: Coleman Court· 54,033 sq ft · score 90 (A)
- 1631 West Pampas Lane· 54,016 sq ft · score 99 (A)
- Montecito Terrace· 54,014 sq ft · score 85 (A)
- Amber Crest Apartments· 54,002 sq ft · score 100 (A)
- Alicia Park-Gk Mgt· 54,002 sq ft · score 98 (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 125 & 135 Gardenside Drive's energy grade?
125 & 135 Gardenside Drive scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 125 & 135 Gardenside Drive use?
Its 2023 site energy-use intensity was 13.5 kBtu/ft² across 54,048 sq ft, including 211,367 kWh of electricity.
What are 125 & 135 Gardenside Drive's carbon emissions?
125 & 135 Gardenside Drive reported 51 tCO₂e of greenhouse-gas emissions (0.9 kgCO₂e/ft²) for 2023.
Where is 125 & 135 Gardenside Drive?
125 & 135 Gardenside Drive is at 135 Gardenside Drive, San Francisco, in San Francisco, California 94131. Its coordinates are 37.75361, -122.44532 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 125 & 135 Gardenside Drive and when was it built?
125 & 135 Gardenside Drive has 54,048 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1982 as its year built. It is classed as multifamily housing.
Is 125 & 135 Gardenside Drive 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, “125 & 135 Gardenside Drive, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/125-135-gardenside-drive-7ef0dbb1 (data as of July 9, 2026).