101860-Westlake S.C. (Spaces 17-18, 20-29)
Office in California, CA · 585 Southgate Avenue, Daly City · 94015
At a glance
101860-Westlake S.C. (Spaces 17-18, 20-29) is a 62,088-square-foot office building at 585 Southgate Avenue, Daly City in Daly City, California, built in 1979. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 26 out of 100 (grade D), a site energy-use intensity of 81.9 kBtu/ft² and 296 tCO₂e of greenhouse-gas emissions. That score is higher than 8% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 26 (band D) |
| Site EUI | 81.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 296 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 541,203 kWh |
| Natural gas | 32,610 therms |
| Gross floor area | 62,088 sq ft |
| Source record | california:18128567:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 26 | +2 | 81.9 kBtu/ft² | 296 tCO₂e |
| 2023 | 24 | ±0 | 86.5 kBtu/ft² | 318 tCO₂e |
| 2022 | 24 | -6 | 86.6 kBtu/ft² | 315 tCO₂e |
| 2021 | 30 | 75.9 kBtu/ft² | 263 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 585 Southgate Avenue, Daly City
- City
- California
- State
- California
- ZIP
- 94015
- Coordinates
- 37.69622, -122.49096
Within ~1 km
Nearby benchmarked buildings
Retail Store · 109,000 sq ft
Strip Mall · 102,409 sq ft
- 1092-Daly Cityscore 81
Retail Store · 99,980 sq ft
- Westlake 150 - Gersonscore 99
Multifamily Housing · 98,000 sq ft
- Westlake 225 - Gersonscore 94
Multifamily Housing · 74,000 sq ft
Strip Mall · 64,810 sq ft
See also: most efficient in California · biggest emitters
How does 101860-Westlake S.C. (Spaces 17-18, 20-29) compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 101860-Westlake S.C. (Spaces 17-18, 20-29)'s ENERGY STAR score of 26 compares with an average of 75 across the 4,912 that report a score; it scores higher than 8% of them and lower than 92%. Its site EUI of 81.9 kBtu/ft² is about 45% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.8 kgCO₂e/ft² is about 32% above the group average of 3.6 kgCO₂e/ft².
At 62,088 sq ft, it is about 59% below the average floor area of 151,937 sq ft for those buildings. It was built in 1979, 6 years earlier than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 101860-Westlake S.C. (Spaces 17-18, 20-29)'s energy performance changed over time?
BuildingCensus holds 7 California disclosures for 101860-Westlake S.C. (Spaces 17-18, 20-29), covering report years 2018–2024. Its ENERGY STAR score went from 30 in 2021 to 26 in 2024 (-4 points); its best year on file was 2021, at 30. Site EUI moved from 75.9 kBtu/ft² (2021) to 81.9 kBtu/ft² (2024), an 8% increase. Reported emissions went from 263 tCO₂e to 296 tCO₂e over the same span (up 12%).
What does an ENERGY STAR score of 26 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 26 means the building performs better than about 26% of its national peers. BuildingCensus bands the score into report-card grades; 26 falls in band D — lowest band (1–54). It sits 49 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. 101860-Westlake S.C. (Spaces 17-18, 20-29)'s 81.9 kBtu/ft² across 62,088 sq ft works out to about 5.1 billion Btu (1,490 MWh-equivalent) in 2024. The disclosure also reports 541,203 kWh of electricity and 32,610 therms of natural gas for the year.
Which law requires 101860-Westlake S.C. (Spaces 17-18, 20-29) to report its energy use?
101860-Westlake S.C. (Spaces 17-18, 20-29) 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:18128567:2024). 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.
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Frequently asked questions
What is 101860-Westlake S.C. (Spaces 17-18, 20-29)'s energy grade?
101860-Westlake S.C. (Spaces 17-18, 20-29) scores 26 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 101860-Westlake S.C. (Spaces 17-18, 20-29) use?
Its 2024 site energy-use intensity was 81.9 kBtu/ft² across 62,088 sq ft, including 541,203 kWh of electricity and 32,610 therms of natural gas.
What are 101860-Westlake S.C. (Spaces 17-18, 20-29)'s carbon emissions?
101860-Westlake S.C. (Spaces 17-18, 20-29) reported 296 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024.
Where is 101860-Westlake S.C. (Spaces 17-18, 20-29)?
101860-Westlake S.C. (Spaces 17-18, 20-29) is at 585 Southgate Avenue, Daly City, in Daly City, California 94015. Its coordinates are 37.69622, -122.49096 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 101860-Westlake S.C. (Spaces 17-18, 20-29) and when was it built?
101860-Westlake S.C. (Spaces 17-18, 20-29) has 62,088 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1979 as its year built. It is classed as office.
Is 101860-Westlake S.C. (Spaces 17-18, 20-29) 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, “101860-Westlake S.C. (Spaces 17-18, 20-29), Daly City, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/101860-westlake-s-c-spaces-17-18-20-29-f2b12263 (data as of July 9, 2026).