Boulders: Boulders
Multifamily Housing in California, CA · 530 North Civic Drive, Walnut Creek · 94597
At a glance
Boulders: Boulders is a 180,000-square-foot multifamily housing building at 530 North Civic Drive, Walnut Creek in Walnut Creek, California, built in 1972. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 74 out of 100 (grade B), a site energy-use intensity of 37.6 kBtu/ft² and 399 tCO₂e of greenhouse-gas emissions. That score is higher than 26% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 74 (band B) |
| Site EUI | 37.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 399 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 630,664 kWh |
| Natural gas | 47,386 therms |
| Gross floor area | 180,000 sq ft |
| Source record | california:6693986:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 74 | +13 | 37.6 kBtu/ft² | 399 tCO₂e |
| 2021 | 61 | -7 | 39.7 kBtu/ft² | 386 tCO₂e |
| 2020 | 68 | -2 | 38.3 kBtu/ft² | 373 tCO₂e |
| 2019 | 70 | 38.9 kBtu/ft² | 395 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
- 530 North Civic Drive, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94597
- Coordinates
- 37.91602, -122.05903
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Boulders: Boulders 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. Boulders: Boulders's ENERGY STAR score of 74 compares with an average of 82 across the 9,612 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 37.6 kBtu/ft² is roughly in line with the average of 34.4 kBtu/ft². Its emissions intensity of 2.2 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 180,000 sq ft, it is about 19% above the average floor area of 150,919 sq ft for those buildings. It was built in 1972, 16 years earlier 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 Boulders: Boulders's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Boulders: Boulders, covering report years 2019–2022. Its ENERGY STAR score went from 70 in 2019 to 74 in 2022 (+4 points). Site EUI moved from 38.9 kBtu/ft² (2019) to 37.6 kBtu/ft² (2022), a 3% decrease. Reported emissions went from 395 tCO₂e to 399 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 74 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 74 means the building performs better than about 74% of its national peers. BuildingCensus bands the score into report-card grades; 74 falls in band B — above median (70–84). It sits 1 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. Boulders: Boulders's 37.6 kBtu/ft² across 180,000 sq ft works out to about 6.8 billion Btu (1,984 MWh-equivalent) in 2022. The disclosure also reports 630,664 kWh of electricity and 47,386 therms of natural gas for the year.
Which law requires Boulders: Boulders to report its energy use?
Boulders: Boulders 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 2022 disclosure (source record california:6693986:2022). 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
- Monte Alban Apartments· 179,996 sq ft · score 97 (A)
- The View Apartments (Vi219)· 179,989 sq ft · score 80 (B)
- 9850 19Th Street - Fdc Management· 179,976 sq ft · score 66 (C)
- The Vue (Vr066)· 179,770 sq ft · score 74 (B)
- Fourth & U - Essex (Fr384)(Fr383)· 179,754 sq ft · score 100 (A)
- Northpointe Park: Northpointe Park· 179,728 sq ft · score 71 (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 Boulders: Boulders's energy grade?
Boulders: Boulders scores 74 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Boulders: Boulders use?
Its 2022 site energy-use intensity was 37.6 kBtu/ft² across 180,000 sq ft, including 630,664 kWh of electricity and 47,386 therms of natural gas.
What are Boulders: Boulders's carbon emissions?
Boulders: Boulders reported 399 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2022.
Where is Boulders: Boulders?
Boulders: Boulders is at 530 North Civic Drive, Walnut Creek, in Walnut Creek, California 94597. Its coordinates are 37.91602, -122.05903 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Boulders: Boulders and when was it built?
Boulders: Boulders has 180,000 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1972 as its year built. It is classed as multifamily housing.
Is Boulders: Boulders covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “Boulders: Boulders, Walnut Creek, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/boulders-boulders-760755c5 (data as of July 9, 2026).