4440 El Camino Real
Office in California, CA · 4440 El Camino Real, Los Altos · 94022
At a glance
4440 El Camino Real is a 96,562-square-foot office building at 4440 El Camino Real, Los Altos in Los Altos, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 44.8 kBtu/ft² and 255 tCO₂e of greenhouse-gas emissions. That score is higher than 56% 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 | 87 (band A) |
| Site EUI | 44.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 255 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 683,484 kWh |
| Natural gas | 18,948 therms |
| Gross floor area | 96,562 sq ft |
| Source record | california:21021935:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 87 | -4 | 44.8 kBtu/ft² | 255 tCO₂e |
| 2023 | 91 | +4 | 38.4 kBtu/ft² | 239 tCO₂e |
| 2022 | 87 | +2 | 49.5 kBtu/ft² | 282 tCO₂e |
| 2021 | 85 | 69.1 kBtu/ft² | 365 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
- 4440 El Camino Real, Los Altos
- City
- California
- State
- California
- ZIP
- 94022
- Coordinates
- 37.40275, -122.11685
Within ~1 km
Nearby benchmarked buildings
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- Deanscore 18
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- 401 San Antonioscore 94
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- 391 San Antonioscore 71
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See also: most efficient in California · biggest emitters
How does 4440 El Camino Real compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 4440 El Camino Real's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 44.8 kBtu/ft² is about 21% 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 2.6 kgCO₂e/ft² is about 27% below the group average of 3.6 kgCO₂e/ft².
At 96,562 sq ft, it is about 36% below the average floor area of 151,937 sq ft for those buildings. It was built in 2000, 15 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.
How has 4440 El Camino Real's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 4440 El Camino Real, covering report years 2021–2024. Its ENERGY STAR score went from 85 in 2021 to 87 in 2024 (+2 points); its best year on file was 2023, at 91. Site EUI moved from 69.1 kBtu/ft² (2021) to 44.8 kBtu/ft² (2024), a 35% decrease. Reported emissions went from 365 tCO₂e to 255 tCO₂e over the same span (down 30%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. 4440 El Camino Real's 44.8 kBtu/ft² across 96,562 sq ft works out to about 4.3 billion Btu (1,268 MWh-equivalent) in 2024. The disclosure also reports 683,484 kWh of electricity and 18,948 therms of natural gas for the year.
Which law requires 4440 El Camino Real to report its energy use?
4440 El Camino Real 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:21021935:2024). 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
- Google - 188 The Embarcadero· 96,550 sq ft · score 87 (A)
- Utc01 - University Town Ctr 1 (Previously Snd05)· 96,543 sq ft · score 15 (D)
- 1 Travis Way· 96,539 sq ft · score 92 (A)
- Maeve Barber· 96,502 sq ft · score 59 (C)
- 350 Holger Way· 96,502 sq ft · score 27 (D)
- Jet Propulsion Laboratory-1049/55/96-183-Physical Sciences Laboratory· 96,483 sq ft · EUI 88.7 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 4440 El Camino Real's energy grade?
4440 El Camino Real scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 4440 El Camino Real use?
Its 2024 site energy-use intensity was 44.8 kBtu/ft² across 96,562 sq ft, including 683,484 kWh of electricity and 18,948 therms of natural gas.
What are 4440 El Camino Real's carbon emissions?
4440 El Camino Real reported 255 tCO₂e of greenhouse-gas emissions (2.6 kgCO₂e/ft²) for 2024.
Where is 4440 El Camino Real?
4440 El Camino Real is at 4440 El Camino Real, Los Altos, in Los Altos, California 94022. Its coordinates are 37.40275, -122.11685 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 4440 El Camino Real and when was it built?
4440 El Camino Real has 96,562 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is 4440 El Camino Real 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, “4440 El Camino Real, Los Altos, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/4440-el-camino-real-28facf26 (data as of July 9, 2026).