Westlake 125 - Gerson
Multifamily Housing in California, CA · 125 Coronado, Daly City · 94015
At a glance
Westlake 125 - Gerson is a 60,000-square-foot multifamily housing building at 125 Coronado, Daly City in Daly City, California, built in 1961. In its 2020 California benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 43.2 kBtu/ft² and 144 tCO₂e of greenhouse-gas emissions. That score is higher than 40% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2020
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 86 (band A) |
| Site EUI | 43.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 144 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 182,148 kWh |
| Natural gas | 19,304 therms |
| Gross floor area | 60,000 sq ft |
| Source record | california:6878857:2020 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2020latest | 86 | -1 | 43.2 kBtu/ft² | 144 tCO₂e |
| 2019 | 87 | 43.1 kBtu/ft² | 145 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
- 125 Coronado, Daly City
- City
- California
- State
- California
- ZIP
- 94015
- Coordinates
- 37.69627, -122.48324
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Westlake 125 - Gerson 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. Westlake 125 - Gerson's ENERGY STAR score of 86 compares with an average of 82 across the 9,612 that report a score; it scores higher than 40% of them and lower than 58%. Its site EUI of 43.2 kBtu/ft² is about 26% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.4 kgCO₂e/ft² is about 14% above the group average of 2.1 kgCO₂e/ft².
At 60,000 sq ft, it is about 60% below the average floor area of 150,919 sq ft for those buildings. It was built in 1961, 27 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 Westlake 125 - Gerson's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Westlake 125 - Gerson, covering report years 2019–2020. Its ENERGY STAR score went from 87 in 2019 to 86 in 2020 (-1 points); its best year on file was 2019, at 87. Site EUI moved from 43.1 kBtu/ft² (2019) to 43.2 kBtu/ft² (2020), an 0% increase. Reported emissions went from 145 tCO₂e to 144 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. Westlake 125 - Gerson's 43.2 kBtu/ft² across 60,000 sq ft works out to about 2.6 billion Btu (760 MWh-equivalent) in 2020. The disclosure also reports 182,148 kWh of electricity and 19,304 therms of natural gas for the year.
Which law requires Westlake 125 - Gerson to report its energy use?
Westlake 125 - Gerson 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 2020 disclosure (source record california:6878857:2020). 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
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- 26123 Bouquet Cyn Rd (Las Flores)· 59,922 sq ft · score 87 (A)
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- 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 Westlake 125 - Gerson's energy grade?
Westlake 125 - Gerson scores 86 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2020 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Westlake 125 - Gerson use?
Its 2020 site energy-use intensity was 43.2 kBtu/ft² across 60,000 sq ft, including 182,148 kWh of electricity and 19,304 therms of natural gas.
What are Westlake 125 - Gerson's carbon emissions?
Westlake 125 - Gerson reported 144 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2020.
Where is Westlake 125 - Gerson?
Westlake 125 - Gerson is at 125 Coronado, Daly City, in Daly City, California 94015. Its coordinates are 37.69627, -122.48324 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Westlake 125 - Gerson and when was it built?
Westlake 125 - Gerson has 60,000 sq ft of gross floor area, as reported in its 2020 disclosure. The disclosure lists 1961 as its year built. It is classed as multifamily housing.
Is Westlake 125 - Gerson covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2020 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, “Westlake 125 - Gerson, Daly City, California — 2020 benchmarking disclosure”, https://buildingcensus.com/buildings/california/westlake-125-gerson-13863acf (data as of July 9, 2026).