Z431610 - Sunnyvale Bldg. D-600
Office in California, CA · 600 West California Avenue, Sunnyvale · 94086
At a glance
Z431610 - Sunnyvale Bldg. D-600 is a 76,379-square-foot office building at 600 West California Avenue, Sunnyvale in Sunnyvale, California, built in 1985. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 17.2 kBtu/ft² and 85 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 17.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 85 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 312,546 kWh |
| Natural gas | 2,700 therms |
| Gross floor area | 76,379 sq ft |
| Source record | california:1979546:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 17.2 kBtu/ft² | 85 tCO₂e | |
| 2023 | — | 15.6 kBtu/ft² | 84 tCO₂e | |
| 2022 | — | — | 56 tCO₂e | |
| 2021 | — | — | 162 tCO₂e | |
| 2020 | — | 85.7 kBtu/ft² | 416 tCO₂e | |
| 2018 | 100 | 25.3 kBtu/ft² | 113 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 600 West California Avenue, Sunnyvale
- City
- California
- State
- California
- ZIP
- 94086
- Coordinates
- 37.38203, -122.03567
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Z431610 - Sunnyvale Bldg. D-600 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Its site EUI of 17.2 kBtu/ft² is about 70% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.1 kgCO₂e/ft² is about 69% below the group average of 3.6 kgCO₂e/ft².
At 76,379 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. Its 1985 construction date is close to 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 Z431610 - Sunnyvale Bldg. D-600's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Z431610 - Sunnyvale Bldg. D-600, covering report years 2018, 2020, 2021, 2022, 2023, 2024. Site EUI moved from 25.3 kBtu/ft² (2018) to 17.2 kBtu/ft² (2024), a 32% decrease. Reported emissions went from 113 tCO₂e to 85 tCO₂e over the same span (down 24%).
What does a site EUI of 17.2 kBtu/ft² mean?
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. Z431610 - Sunnyvale Bldg. D-600's 17.2 kBtu/ft² across 76,379 sq ft works out to about 1.3 billion Btu (385 MWh-equivalent) in 2024. The disclosure also reports 312,546 kWh of electricity and 2,700 therms of natural gas for the year.
Which law requires Z431610 - Sunnyvale Bldg. D-600 to report its energy use?
Z431610 - Sunnyvale Bldg. D-600 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:1979546:2024). 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 office buildings in California
- Social Sciences Building· 76,369 sq ft · score 72 (B)
- Svc, Bldg E, 2540· 76,367 sq ft · score 74 (B)
- 8560 W Sunset (Sunset Office Tower)· 76,359 sq ft · score 96 (A)
- 2000 South Mcdowell Blvd.· 76,333 sq ft · score 90 (A)
- 4425 Fortran Dr· 76,319 sq ft · score 100 (A)
- Crossroads Corporate Center Bldg. A· 76,235 sq ft · EUI 24.6 kBtu/ft²
- Office buildings in California· 6,214 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 Z431610 - Sunnyvale Bldg. D-600's energy grade?
Z431610 - Sunnyvale Bldg. D-600 did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 17.2 kBtu/ft².
How much energy does Z431610 - Sunnyvale Bldg. D-600 use?
Its 2024 site energy-use intensity was 17.2 kBtu/ft² across 76,379 sq ft, including 312,546 kWh of electricity and 2,700 therms of natural gas.
What are Z431610 - Sunnyvale Bldg. D-600's carbon emissions?
Z431610 - Sunnyvale Bldg. D-600 reported 85 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2024.
Where is Z431610 - Sunnyvale Bldg. D-600?
Z431610 - Sunnyvale Bldg. D-600 is at 600 West California Avenue, Sunnyvale, in Sunnyvale, California 94086. Its coordinates are 37.38203, -122.03567 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Z431610 - Sunnyvale Bldg. D-600 and when was it built?
Z431610 - Sunnyvale Bldg. D-600 has 76,379 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1985 as its year built. It is classed as office.
Is Z431610 - Sunnyvale Bldg. D-600 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, “Z431610 - Sunnyvale Bldg. D-600, Sunnyvale, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/z431610-sunnyvale-bldg-d-600-f9d1f575 (data as of July 9, 2026).