855 Cal - 855 California Ave
Office in California, CA · 855 California Avenue, Palo Alto · 94304
At a glance
855 Cal - 855 California Ave is a 62,084-square-foot office building at 855 California Avenue, Palo Alto in Palo Alto, California, built in 1955. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 241.9 kBtu/ft² and 889 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 241.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 889 tCO₂e |
| GHG intensity | 14.3 kgCO₂e/ft² |
| Electricity | 1,790,178 kWh |
| Natural gas | 91,112 therms |
| Gross floor area | 62,084 sq ft |
| Source record | california:18747601:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | ±0 | 241.9 kBtu/ft² | 889 tCO₂e |
| 2023 | 1 | 279.9 kBtu/ft² | 1,033 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
- 855 California Avenue, Palo Alto
- City
- California
- State
- California
- ZIP
- 94304
- Coordinates
- 37.42237, -122.14703
Within ~1 km
Nearby benchmarked buildings
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- Y-395 Page Millscore 64
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- 650 Page Mill Rd.score 90
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- Palo Alto Var B3score —
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- Palo Alto Square 2score 91
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See also: most efficient in California · biggest emitters
How does 855 Cal - 855 California Ave compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 855 Cal - 855 California Ave's ENERGY STAR score of 1 compares with an average of 75 across the 4,912 that report a score; it scores higher than 0% of them and lower than 97%. Its site EUI of 241.9 kBtu/ft² is about 329% 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 14.3 kgCO₂e/ft² is about 298% above the group average of 3.6 kgCO₂e/ft².
At 62,084 sq ft, it is about 59% below the average floor area of 151,937 sq ft for those buildings. It was built in 1955, 30 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 855 Cal - 855 California Ave's energy performance changed over time?
BuildingCensus holds 2 California disclosures for 855 Cal - 855 California Ave, covering report years 2023–2024. Its ENERGY STAR score was 1 in both 2023 and 2024. Site EUI moved from 279.9 kBtu/ft² (2023) to 241.9 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 1,033 tCO₂e to 889 tCO₂e over the same span (down 14%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. 855 Cal - 855 California Ave's 241.9 kBtu/ft² across 62,084 sq ft works out to about 15 billion Btu (4,401 MWh-equivalent) in 2024. The disclosure also reports 1,790,178 kWh of electricity and 91,112 therms of natural gas for the year.
Which law requires 855 Cal - 855 California Ave to report its energy use?
855 Cal - 855 California Ave 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:18747601:2024). 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
- Westgate Center· 62,071 sq ft · EUI 38.1 kBtu/ft²
- Maxlinear, Inc. San Jose· 62,053 sq ft · score 31 (D)
- 3200 Douglas Boulevard (Douglas Point) Roseville Ca· 62,039 sq ft · score 86 (A)
- 173 Technology· 62,034 sq ft · score 89 (A)
- 8929 S Sepulveda Blvd - Airport Office Center· 62,020 sq ft · score 40 (D)
- Hospitality Executive Center (275)· 62,012 sq ft · score 75 (B)
- 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 855 Cal - 855 California Ave's energy grade?
855 Cal - 855 California Ave scores 1 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 855 Cal - 855 California Ave use?
Its 2024 site energy-use intensity was 241.9 kBtu/ft² across 62,084 sq ft, including 1,790,178 kWh of electricity and 91,112 therms of natural gas.
What are 855 Cal - 855 California Ave's carbon emissions?
855 Cal - 855 California Ave reported 889 tCO₂e of greenhouse-gas emissions (14.3 kgCO₂e/ft²) for 2024.
Where is 855 Cal - 855 California Ave?
855 Cal - 855 California Ave is at 855 California Avenue, Palo Alto, in Palo Alto, California 94304. Its coordinates are 37.42237, -122.14703 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 855 Cal - 855 California Ave and when was it built?
855 Cal - 855 California Ave has 62,084 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1955 as its year built. It is classed as office.
Is 855 Cal - 855 California Ave 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, “855 Cal - 855 California Ave, Palo Alto, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/855-cal-855-california-ave-b1829f63 (data as of July 9, 2026).