Alexan Downtown Danville (Lx103)
Multifamily Housing in California, CA · 373 Diablo Road, Danville · 94526
At a glance
Alexan Downtown Danville (Lx103) is a 154,444-square-foot multifamily housing building at 373 Diablo Road, Danville in Danville, California, built in 2021. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 34.6 kBtu/ft² and 310 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 97 (band A) |
| Site EUI | 34.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 310 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 823,121 kWh |
| Natural gas | 23,348 therms |
| Gross floor area | 154,444 sq ft |
| Source record | california:15140534:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 97 | +2 | 34.6 kBtu/ft² | 310 tCO₂e |
| 2023 | 95 | 35.9 kBtu/ft² | 348 tCO₂e | |
| 2022 | — | 34.6 kBtu/ft² | 326 tCO₂e | |
| 2021 | — | 24.5 kBtu/ft² | 217 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
- 373 Diablo Road, Danville
- City
- California
- State
- California
- ZIP
- 94526
- Coordinates
- 37.82190, -121.99484
Within ~1 km
Nearby benchmarked buildings
- Danville Parkscore 99
Multifamily Housing · 79,636 sq ft
- Danville Park (Dn95)score 56
Multifamily Housing · 77,300 sq ft
- Danville Shopping Centerscore 49
Retail Store · 67,192 sq ft
Strip Mall · 67,000 sq ft
- Sycamore Place Apartmentsscore 100
Multifamily Housing · 64,167 sq ft
- Sycamore Placescore 100
Multifamily Housing · 64,167 sq ft
See also: most efficient in California · biggest emitters
How does Alexan Downtown Danville (Lx103) 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. Alexan Downtown Danville (Lx103)'s ENERGY STAR score of 97 compares with an average of 82 across the 9,612 that report a score; it scores higher than 63% of them and lower than 34%. Its site EUI of 34.6 kBtu/ft² is roughly in line with the average of 34.4 kBtu/ft². Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 154,444 sq ft, it is roughly in line with the average floor area of 150,919 sq ft for those buildings. It was built in 2021, 33 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 Alexan Downtown Danville (Lx103)'s energy performance changed over time?
BuildingCensus holds 4 California disclosures for Alexan Downtown Danville (Lx103), covering report years 2021–2024. Its ENERGY STAR score went from 95 in 2023 to 97 in 2024 (+2 points). Site EUI moved from 24.5 kBtu/ft² (2021) to 34.6 kBtu/ft² (2024), an 41% increase. Reported emissions went from 217 tCO₂e to 310 tCO₂e over the same span (up 43%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. Alexan Downtown Danville (Lx103)'s 34.6 kBtu/ft² across 154,444 sq ft works out to about 5.3 billion Btu (1,566 MWh-equivalent) in 2024. The disclosure also reports 823,121 kWh of electricity and 23,348 therms of natural gas for the year.
Which law requires Alexan Downtown Danville (Lx103) to report its energy use?
Alexan Downtown Danville (Lx103) 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:15140534:2024). 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
- Seaton (11325)· 154,436 sq ft · score 93 (A)
- Park Circle· 154,400 sq ft · score 100 (A)
- Maxwell Apartments - Essex (Sm172)· 154,316 sq ft · score 98 (A)
- Victoria Green - Total· 154,275 sq ft · score 96 (A)
- Park Bonita (Pr07)· 154,256 sq ft · score 100 (A)
- The Vineyards· 154,216 sq ft · score 72 (B)
- 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 Alexan Downtown Danville (Lx103)'s energy grade?
Alexan Downtown Danville (Lx103) scores 97 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 Alexan Downtown Danville (Lx103) use?
Its 2024 site energy-use intensity was 34.6 kBtu/ft² across 154,444 sq ft, including 823,121 kWh of electricity and 23,348 therms of natural gas.
What are Alexan Downtown Danville (Lx103)'s carbon emissions?
Alexan Downtown Danville (Lx103) reported 310 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2024.
Where is Alexan Downtown Danville (Lx103)?
Alexan Downtown Danville (Lx103) is at 373 Diablo Road, Danville, in Danville, California 94526. Its coordinates are 37.82190, -121.99484 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Alexan Downtown Danville (Lx103) and when was it built?
Alexan Downtown Danville (Lx103) has 154,444 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2021 as its year built. It is classed as multifamily housing.
Is Alexan Downtown Danville (Lx103) 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, “Alexan Downtown Danville (Lx103), Danville, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/alexan-downtown-danville-lx103-f3b6e976 (data as of July 9, 2026).