Artthaus Hannah (Ha088)
Multifamily Housing in California, CA · 2850 Hannah Street, Oakland · 94608
At a glance
Artthaus Hannah (Ha088) is a 78,792-square-foot multifamily housing building at 2850 Hannah Street, Oakland in Oakland, California, built in 2020. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 25.3 kBtu/ft² and 119 tCO₂e of greenhouse-gas emissions. That score is higher than 51% 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 | 92 (band A) |
| Site EUI | 25.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 119 tCO₂e |
| GHG intensity | 1.5 kgCO₂e/ft² |
| Electricity | 263,700 kWh |
| Natural gas | 11,163 therms |
| Gross floor area | 78,792 sq ft |
| Source record | california:26675342:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | -5 | 25.3 kBtu/ft² | 119 tCO₂e |
| 2023 | 97 | -3 | 23.9 kBtu/ft² | 115 tCO₂e |
| 2022 | 100 | 12.8 kBtu/ft² | 65 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
- 2850 Hannah Street, Oakland
- City
- California
- State
- California
- ZIP
- 94608
- Coordinates
- 37.82225, -122.28617
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Artthaus Hannah (Ha088) 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. Artthaus Hannah (Ha088)'s ENERGY STAR score of 92 compares with an average of 82 across the 9,612 that report a score; it scores higher than 51% of them and lower than 47%. Its site EUI of 25.3 kBtu/ft² is about 26% below 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 1.5 kgCO₂e/ft² is about 28% below the group average of 2.1 kgCO₂e/ft².
At 78,792 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 2020, 32 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 Artthaus Hannah (Ha088)'s energy performance changed over time?
BuildingCensus holds 3 California disclosures for Artthaus Hannah (Ha088), covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 92 in 2024 (-8 points); its best year on file was 2022, at 100. Site EUI moved from 12.8 kBtu/ft² (2022) to 25.3 kBtu/ft² (2024), an 98% increase. Reported emissions went from 65 tCO₂e to 119 tCO₂e over the same span (up 82%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 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. Artthaus Hannah (Ha088)'s 25.3 kBtu/ft² across 78,792 sq ft works out to about 2 billion Btu (584 MWh-equivalent) in 2024. The disclosure also reports 263,700 kWh of electricity and 11,163 therms of natural gas for the year.
Which law requires Artthaus Hannah (Ha088) to report its energy use?
Artthaus Hannah (Ha088) 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:26675342:2024). 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
- 235 Haas Ave· 78,775 sq ft · score 100 (A)
- Los Medanos Village· 78,711 sq ft · score 85 (A)
- Del Sol Apartments (Dl038)· 78,700 sq ft · score 99 (A)
- Casa Antigua· 78,699 sq ft
- Coastal Village Apartments (Cs006)· 78,692 sq ft · score 86 (A)
- 3553 Emerald St· 78,688 sq ft · score 100 (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 Artthaus Hannah (Ha088)'s energy grade?
Artthaus Hannah (Ha088) scores 92 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 Artthaus Hannah (Ha088) use?
Its 2024 site energy-use intensity was 25.3 kBtu/ft² across 78,792 sq ft, including 263,700 kWh of electricity and 11,163 therms of natural gas.
What are Artthaus Hannah (Ha088)'s carbon emissions?
Artthaus Hannah (Ha088) reported 119 tCO₂e of greenhouse-gas emissions (1.5 kgCO₂e/ft²) for 2024.
Where is Artthaus Hannah (Ha088)?
Artthaus Hannah (Ha088) is at 2850 Hannah Street, Oakland, in Oakland, California 94608. Its coordinates are 37.82225, -122.28617 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Artthaus Hannah (Ha088) and when was it built?
Artthaus Hannah (Ha088) has 78,792 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2020 as its year built. It is classed as multifamily housing.
Is Artthaus Hannah (Ha088) 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, “Artthaus Hannah (Ha088), Oakland, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/artthaus-hannah-ha088-f5d7dcf1 (data as of July 9, 2026).