850 18Th St
Office in California, CA · 850 18Th Street, Oakland · 94607
At a glance
850 18Th St is a 3,438-square-foot office building at 850 18Th Street, Oakland in Oakland, California, built in 1984. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 25.3 kBtu/ft² and 6 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 95 (band A) |
| Site EUI | 25.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 6 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 9,891 kWh |
| Natural gas | 577 therms |
| Gross floor area | 3,438 sq ft |
| Source record | california:6814996:2023 |
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
- 850 18Th Street, Oakland
- City
- California
- State
- California
- ZIP
- 94607
- Coordinates
- 37.81088, -122.27861
Within ~1 km
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- City Center West Garagescore —
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See also: most efficient in California · biggest emitters
How does 850 18Th St compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 850 18Th St's ENERGY STAR score of 95 compares with an average of 75 across the 4,912 that report a score; it scores higher than 78% of them and lower than 20%. Its site EUI of 25.3 kBtu/ft² is about 55% 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 1.6 kgCO₂e/ft² is about 56% below the group average of 3.6 kgCO₂e/ft².
At 3,438 sq ft, it is about 98% below the average floor area of 151,937 sq ft for those buildings. Its 1984 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.
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. 850 18Th St's 25.3 kBtu/ft² across 3,438 sq ft works out to about 0.1 billion Btu (25 MWh-equivalent) in 2023. The disclosure also reports 9,891 kWh of electricity and 577 therms of natural gas for the year.
Which law requires 850 18Th St to report its energy use?
850 18Th St 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 2023 disclosure (source record california:6814996:2023). 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
Frequently asked questions
What is 850 18Th St's energy grade?
850 18Th St scores 95 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 850 18Th St use?
Its 2023 site energy-use intensity was 25.3 kBtu/ft² across 3,438 sq ft, including 9,891 kWh of electricity and 577 therms of natural gas.
What are 850 18Th St's carbon emissions?
850 18Th St reported 6 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2023.
Where is 850 18Th St?
850 18Th St is at 850 18Th Street, Oakland, in Oakland, California 94607. Its coordinates are 37.81088, -122.27861 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 850 18Th St and when was it built?
850 18Th St has 3,438 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1984 as its year built. It is classed as office.
Is 850 18Th St covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “850 18Th St, Oakland, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/850-18th-st-58335e61 (data as of July 9, 2026).