Ca564_Avalon Walnut Ridge I (Rc33)
Multifamily Housing in California, CA · 2992 Santos Lane, Walnut Creek · 94597
At a glance
Ca564_Avalon Walnut Ridge I (Rc33) is a 101,178-square-foot multifamily housing building at 2992 Santos Lane, Walnut Creek in Walnut Creek, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 261.8 kBtu/ft² and 1,629 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 261.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,629 tCO₂e |
| GHG intensity | 16.1 kgCO₂e/ft² |
| Electricity | 409,069 kWh |
| Natural gas | 25,266 therms |
| Gross floor area | 101,178 sq ft |
| Source record | california:15292020:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | -56 | 261.8 kBtu/ft² | 1,629 tCO₂e |
| 2023 | 57 | ±0 | 47.7 kBtu/ft² | 291 tCO₂e |
| 2022 | 57 | +11 | 47.1 kBtu/ft² | 286 tCO₂e |
| 2021 | 46 | 48.7 kBtu/ft² | 263 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
- 2992 Santos Lane, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94597
- Coordinates
- 37.93091, -122.05125
Within ~1 km
Nearby benchmarked buildings
- Ca085_Avalon Walnut Creek (Cw74)score 90
Multifamily Housing · 491,883 sq ft
- Ca504_Eaves Walnut Creek (Rc31)score 94
Multifamily Housing · 475,678 sq ft
- Hanover Walnut Creekscore —
Multifamily Housing · 425,474 sq ft
Multifamily Housing · 297,243 sq ft
- Walnut Creek Manor (Wa200)score 41
Multifamily Housing · 286,901 sq ft
- Pacific Plazascore 95
Office · 271,581 sq ft
See also: most efficient in California · biggest emitters
How does Ca564_Avalon Walnut Ridge I (Rc33) 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. Ca564_Avalon Walnut Ridge I (Rc33)'s ENERGY STAR score of 1 compares with an average of 82 across the 9,612 that report a score; it scores higher than 0% of them and lower than 99%. Its site EUI of 261.8 kBtu/ft² is about 661% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 16.1 kgCO₂e/ft² is about 667% above the group average of 2.1 kgCO₂e/ft².
At 101,178 sq ft, it is about 33% below 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 Ca564_Avalon Walnut Ridge I (Rc33)'s energy performance changed over time?
BuildingCensus holds 4 California disclosures for Ca564_Avalon Walnut Ridge I (Rc33), covering report years 2021–2024. Its ENERGY STAR score went from 46 in 2021 to 1 in 2024 (-45 points); its best year on file was 2022, at 57. Site EUI moved from 48.7 kBtu/ft² (2021) to 261.8 kBtu/ft² (2024), an 438% increase. Reported emissions went from 263 tCO₂e to 1,629 tCO₂e over the same span (up 520%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 points below 75, the threshold for ENERGY STAR certification. 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. Ca564_Avalon Walnut Ridge I (Rc33)'s 261.8 kBtu/ft² across 101,178 sq ft works out to about 26.5 billion Btu (7,763 MWh-equivalent) in 2024. The disclosure also reports 409,069 kWh of electricity and 25,266 therms of natural gas for the year.
Which law requires Ca564_Avalon Walnut Ridge I (Rc33) to report its energy use?
Ca564_Avalon Walnut Ridge I (Rc33) 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:15292020:2024). 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
- Concord Huntington Park: Chp· 101,128 sq ft · score 79 (B)
- Legado De Ravel· 101,090 sq ft
- Villa Boutique Apartments - Remm· 101,077 sq ft · score 91 (A)
- 725 N Fig Street· 101,040 sq ft · score 44 (D)
- Terrace Village Apartments· 101,000 sq ft · score 100 (A)
- Capistrano Gardens· 101,000 sq ft · score 55 (C)
- 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 Ca564_Avalon Walnut Ridge I (Rc33)'s energy grade?
Ca564_Avalon Walnut Ridge I (Rc33) scores 1 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Ca564_Avalon Walnut Ridge I (Rc33) use?
Its 2024 site energy-use intensity was 261.8 kBtu/ft² across 101,178 sq ft, including 409,069 kWh of electricity and 25,266 therms of natural gas.
What are Ca564_Avalon Walnut Ridge I (Rc33)'s carbon emissions?
Ca564_Avalon Walnut Ridge I (Rc33) reported 1,629 tCO₂e of greenhouse-gas emissions (16.1 kgCO₂e/ft²) for 2024.
Where is Ca564_Avalon Walnut Ridge I (Rc33)?
Ca564_Avalon Walnut Ridge I (Rc33) is at 2992 Santos Lane, Walnut Creek, in Walnut Creek, California 94597. Its coordinates are 37.93091, -122.05125 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ca564_Avalon Walnut Ridge I (Rc33) and when was it built?
Ca564_Avalon Walnut Ridge I (Rc33) has 101,178 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 Ca564_Avalon Walnut Ridge I (Rc33) 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Ca564_Avalon Walnut Ridge I (Rc33), Walnut Creek, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ca564-avalon-walnut-ridge-i-rc33-864fac24 (data as of July 9, 2026).