Ashby Lofts: 2909 9Th St
Multifamily Housing in California, CA · 2909 Ninth Street, Berkeley · 94710
At a glance
Ashby Lofts: 2909 9Th St is a 51,365-square-foot multifamily housing building at 2909 Ninth Street, Berkeley in Berkeley, California, built in 2007. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A) and a site energy-use intensity of 13.2 kBtu/ft². That score is higher than 76% 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 | 100 (band A) |
| Site EUI | 13.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 187,877 kWh |
| Gross floor area | 51,365 sq ft |
| Source record | california:5902229:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +17 | 13.2 kBtu/ft² | — |
| 2022 | 83 | +9 | 46.4 kBtu/ft² | 140 tCO₂e |
| 2021 | 74 | +9 | 48.6 kBtu/ft² | 137 tCO₂e |
| 2020 | 65 | +3 | 53.6 kBtu/ft² | 143 tCO₂e |
| 2019 | 62 | 55.6 kBtu/ft² | 158 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
- 2909 Ninth Street, Berkeley
- City
- California
- State
- California
- ZIP
- 94710
- Coordinates
- 37.85249, -122.28945
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Ashby Lofts: 2909 9Th St 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. Ashby Lofts: 2909 9Th St's ENERGY STAR score of 100 compares with an average of 82 across the 9,612 that report a score; it scores higher than 76% of them. Its site EUI of 13.2 kBtu/ft² is about 62% 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 0.8 kgCO₂e/ft² is about 60% below the group average of 2.1 kgCO₂e/ft².
At 51,365 sq ft, it is about 66% below the average floor area of 150,919 sq ft for those buildings. It was built in 2007, 19 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 Ashby Lofts: 2909 9Th St's energy performance changed over time?
BuildingCensus holds 5 California disclosures for Ashby Lofts: 2909 9Th St, covering report years 2019, 2020, 2021, 2022, 2024. Its ENERGY STAR score went from 62 in 2019 to 100 in 2024 (+38 points). Site EUI moved from 55.6 kBtu/ft² (2019) to 13.2 kBtu/ft² (2024), a 76% decrease. Reported emissions went from 158 tCO₂e to 140 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Ashby Lofts: 2909 9Th St's 13.2 kBtu/ft² across 51,365 sq ft works out to about 0.7 billion Btu (199 MWh-equivalent) in 2024. The disclosure also reports 187,877 kWh of electricity for the year.
Which law requires Ashby Lofts: 2909 9Th St to report its energy use?
Ashby Lofts: 2909 9Th 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 2024 disclosure (source record california:5902229:2024). 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
- Venezia (Vn18)· 51,358 sq ft · score 100 (A)
- 536 Linden Ave - Ab802· 51,352 sq ft · EUI 23.2 kBtu/ft²
- Westminster Senior Apts· 51,350 sq ft · score 64 (C)
- The Arbors· 51,348 sq ft · score 87 (A)
- San Mateo Rotary Haciendas: 2700 Hacienda Street· 51,342 sq ft · score 95 (A)
- Fanoe Vista Apartments· 51,339 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 Ashby Lofts: 2909 9Th St's energy grade?
Ashby Lofts: 2909 9Th St scores 100 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 Ashby Lofts: 2909 9Th St use?
Its 2024 site energy-use intensity was 13.2 kBtu/ft² across 51,365 sq ft, including 187,877 kWh of electricity.
What are Ashby Lofts: 2909 9Th St's carbon emissions?
No greenhouse-gas emissions figure was reported for 2024.
Where is Ashby Lofts: 2909 9Th St?
Ashby Lofts: 2909 9Th St is at 2909 Ninth Street, Berkeley, in Berkeley, California 94710. Its coordinates are 37.85249, -122.28945 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ashby Lofts: 2909 9Th St and when was it built?
Ashby Lofts: 2909 9Th St has 51,365 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2007 as its year built. It is classed as multifamily housing.
Is Ashby Lofts: 2909 9Th St 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, “Ashby Lofts: 2909 9Th St, Berkeley, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ashby-lofts-2909-9th-st-030e3aef (data as of July 9, 2026).