The Plaza At Walnut Creek - 1331
Office in California, CA · 1331 N. California Blvd., Walnut Creek · 94596
At a glance
The Plaza At Walnut Creek - 1331 is a 133,867-square-foot office building at 1331 N. California Blvd., Walnut Creek in Walnut Creek, California, built in 1987. In its 2018 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 49.8 kBtu/ft² and 433 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2018
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 49.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 433 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 1,338,203 kWh |
| Natural gas | 21,019 therms |
| Gross floor area | 133,867 sq ft |
| Source record | california:1717312:2018 |
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
- 1331 N. California Blvd., Walnut Creek
- City
- California
- State
- California
- ZIP
- 94596
- Coordinates
- 37.89780, -122.06417
Within ~1 km
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See also: most efficient in California · biggest emitters
How does The Plaza At Walnut Creek - 1331 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. The Plaza At Walnut Creek - 1331's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 49.8 kBtu/ft² is about 12% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.2 kgCO₂e/ft² is about 10% below the group average of 3.6 kgCO₂e/ft².
At 133,867 sq ft, it is about 12% below the average floor area of 151,937 sq ft for those buildings. Its 1987 construction date is close to the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. The Plaza At Walnut Creek - 1331's 49.8 kBtu/ft² across 133,867 sq ft works out to about 6.7 billion Btu (1,954 MWh-equivalent) in 2018. The disclosure also reports 1,338,203 kWh of electricity and 21,019 therms of natural gas for the year.
Which law requires The Plaza At Walnut Creek - 1331 to report its energy use?
The Plaza At Walnut Creek - 1331 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 2018 disclosure (source record california:1717312:2018). 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 office buildings in California
- 2801 Leavenworth-Cannery, Llc· 133,675 sq ft · score 74 (B)
- C&W Symantec Mvcc· 133,488 sq ft · EUI 73.8 kBtu/ft²
- 3301 Exposition Blvd· 133,485 sq ft · score 87 (A)
- Ca-Sdg-3A· 133,447 sq ft · score 70 (B)
- 1 De Haro· 133,427 sq ft · score 93 (A)
- Westlake North Business Park Iii· 133,405 sq ft · score 80 (B)
- Office buildings in California· 6,214 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 The Plaza At Walnut Creek - 1331's energy grade?
The Plaza At Walnut Creek - 1331 scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2018 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Plaza At Walnut Creek - 1331 use?
Its 2018 site energy-use intensity was 49.8 kBtu/ft² across 133,867 sq ft, including 1,338,203 kWh of electricity and 21,019 therms of natural gas.
What are The Plaza At Walnut Creek - 1331's carbon emissions?
The Plaza At Walnut Creek - 1331 reported 433 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2018.
Where is The Plaza At Walnut Creek - 1331?
The Plaza At Walnut Creek - 1331 is at 1331 N. California Blvd., Walnut Creek, in Walnut Creek, California 94596. Its coordinates are 37.89780, -122.06417 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is The Plaza At Walnut Creek - 1331 and when was it built?
The Plaza At Walnut Creek - 1331 has 133,867 sq ft of gross floor area, as reported in its 2018 disclosure. The disclosure lists 1987 as its year built. It is classed as office.
Is The Plaza At Walnut Creek - 1331 covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2018 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, “The Plaza At Walnut Creek - 1331, Walnut Creek, California — 2018 benchmarking disclosure”, https://buildingcensus.com/buildings/california/the-plaza-at-walnut-creek-1331-6d119308 (data as of July 9, 2026).