920 Stewart Drive
Office in California, CA · 920 Stewart Drive, Sunnyvale · 94085
At a glance
920 Stewart Drive is a 64,241-square-foot office building at 920 Stewart Drive, Sunnyvale in Sunnyvale, California, built in 1998. In its 2022 California benchmarking disclosure it reported a site energy-use intensity of 18.0 kBtu/ft² and 72 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 18.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 72 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 193,836 kWh |
| Natural gas | 4,938 therms |
| Gross floor area | 64,241 sq ft |
| Source record | california:27517296:2022 |
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
- 920 Stewart Drive, Sunnyvale
- City
- California
- State
- California
- ZIP
- 94085
- Coordinates
- 37.38312, -122.00567
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 920 Stewart Drive 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 18.0 kBtu/ft² is about 68% 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 64,241 sq ft, it is about 58% below the average floor area of 151,937 sq ft for those buildings. It was built in 1998, 13 years later 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.
What does a site EUI of 18.0 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. 920 Stewart Drive's 18.0 kBtu/ft² across 64,241 sq ft works out to about 1.2 billion Btu (339 MWh-equivalent) in 2022. The disclosure also reports 193,836 kWh of electricity and 4,938 therms of natural gas for the year.
Which law requires 920 Stewart Drive to report its energy use?
920 Stewart 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 2022 disclosure (source record california:27517296:2022). 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
- Hamilton Landing - Hangar 10· 64,231 sq ft · score 15 (D)
- 111 Santa Rosa Llc· 64,221 sq ft · score 88 (A)
- 550 15Th St· 64,200 sq ft · score 44 (D)
- University Gardens Bldg (Ugb)· 64,189 sq ft · score 87 (A)
- 2190 Gold Street· 64,174 sq ft · score 7 (D)
- Kearny Mesa Office Center, Llc· 64,147 sq ft · score 95 (A)
- 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 920 Stewart Drive's energy grade?
920 Stewart Drive did not report an ENERGY STAR score in its 2022 disclosure, but its site energy-use intensity was 18.0 kBtu/ft².
How much energy does 920 Stewart Drive use?
Its 2022 site energy-use intensity was 18.0 kBtu/ft² across 64,241 sq ft, including 193,836 kWh of electricity and 4,938 therms of natural gas.
What are 920 Stewart Drive's carbon emissions?
920 Stewart Drive reported 72 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2022.
Where is 920 Stewart Drive?
920 Stewart Drive is at 920 Stewart Drive, Sunnyvale, in Sunnyvale, California 94085. Its coordinates are 37.38312, -122.00567 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 920 Stewart Drive and when was it built?
920 Stewart Drive has 64,241 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1998 as its year built. It is classed as office.
Is 920 Stewart Drive covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “920 Stewart Drive, Sunnyvale, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/920-stewart-drive-09f4178f (data as of July 9, 2026).