81381100 - Webster 11
Multifamily Housing in California, CA · 1100 Webster Street, Oakland · 94607
At a glance
81381100 - Webster 11 is a 227,580-square-foot multifamily housing building at 1100 Webster Street, Oakland in Oakland, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 33.1 kBtu/ft² and 462 tCO₂e of greenhouse-gas emissions. That score is higher than 55% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 33.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 462 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 1,376,696 kWh |
| Natural gas | 28,287 therms |
| Gross floor area | 227,580 sq ft |
| Source record | california:21323657:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | -6 | 33.1 kBtu/ft² | 462 tCO₂e |
| 2023 | 100 | ±0 | 21.2 kBtu/ft² | 278 tCO₂e |
| 2022 | 100 | ±0 | 18.3 kBtu/ft² | 237 tCO₂e |
| 2021 | 100 | 11.5 kBtu/ft² | 149 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
- 1100 Webster Street, Oakland
- City
- California
- State
- California
- ZIP
- 94607
- Coordinates
- 37.80146, -122.26974
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 81381100 - Webster 11 compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. 81381100 - Webster 11's ENERGY STAR score of 94 compares with an average of 82 across the 9,612 that report a score; it scores higher than 55% of them and lower than 42%. Its site EUI of 33.1 kBtu/ft² is roughly in line with the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 227,580 sq ft, it is about 51% above the average floor area of 150,919 sq ft for those buildings. It was built in 2000, 12 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 81381100 - Webster 11's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 81381100 - Webster 11, covering report years 2021–2024. Its ENERGY STAR score went from 100 in 2021 to 94 in 2024 (-6 points); its best year on file was 2021, at 100. Site EUI moved from 11.5 kBtu/ft² (2021) to 33.1 kBtu/ft² (2024), an 188% increase. Reported emissions went from 149 tCO₂e to 462 tCO₂e over the same span (up 210%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. 81381100 - Webster 11's 33.1 kBtu/ft² across 227,580 sq ft works out to about 7.5 billion Btu (2,208 MWh-equivalent) in 2024. The disclosure also reports 1,376,696 kWh of electricity and 28,287 therms of natural gas for the year.
Which law requires 81381100 - Webster 11 to report its energy use?
81381100 - Webster 11 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:21323657:2024). 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 multifamily housing buildings in California
- Monterey Grove (Mn89)· 227,502 sq ft · score 85 (A)
- Flats At Cityline (Fl016)· 227,488 sq ft · score 8 (D)
- Epic 680 - Essex (Pc087)· 227,424 sq ft · score 97 (A)
- Westview Ii Apartment Homes #02· 227,408 sq ft · score 51 (D)
- Mv Apartments (Mv016)· 227,390 sq ft · score 99 (A)
- Revela (Rv060)· 227,324 sq ft · score 91 (A)
- Multifamily Housing buildings in California· 10,630 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 81381100 - Webster 11's energy grade?
81381100 - Webster 11 scores 94 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 81381100 - Webster 11 use?
Its 2024 site energy-use intensity was 33.1 kBtu/ft² across 227,580 sq ft, including 1,376,696 kWh of electricity and 28,287 therms of natural gas.
What are 81381100 - Webster 11's carbon emissions?
81381100 - Webster 11 reported 462 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2024.
Where is 81381100 - Webster 11?
81381100 - Webster 11 is at 1100 Webster Street, Oakland, in Oakland, California 94607. Its coordinates are 37.80146, -122.26974 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 81381100 - Webster 11 and when was it built?
81381100 - Webster 11 has 227,580 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as multifamily housing.
Is 81381100 - Webster 11 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, “81381100 - Webster 11, Oakland, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/81381100-webster-11-182bd6ab (data as of July 9, 2026).