Coggins Square Apartments
Multifamily Housing in California, CA · 1316 Las Juntas Way, Walnut Creek · 94597
At a glance
Coggins Square Apartments is a 126,059-square-foot multifamily housing building at 1316 Las Juntas Way, Walnut Creek in Walnut Creek, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 18.6 kBtu/ft² and 144 tCO₂e of greenhouse-gas emissions. 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 | 18.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 144 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 410,970 kWh |
| Natural gas | 9,497 therms |
| Gross floor area | 126,059 sq ft |
| Source record | california:5029908:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 18.6 kBtu/ft² | 144 tCO₂e |
| 2023 | 99 | +1 | 18.0 kBtu/ft² | 148 tCO₂e |
| 2022 | 98 | -1 | 18.6 kBtu/ft² | 150 tCO₂e |
| 2021 | 99 | +4 | 17.1 kBtu/ft² | 123 tCO₂e |
| 2020 | 95 | ±0 | 20.4 kBtu/ft² | 152 tCO₂e |
| 2019 | 95 | 20.7 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.
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Location
- Address
- 1316 Las Juntas Way, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94597
- Coordinates
- 37.93047, -122.05489
Within ~1 km
Nearby benchmarked buildings
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See also: most efficient in California · biggest emitters
How does Coggins Square Apartments 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. Coggins Square Apartments'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 18.6 kBtu/ft² is about half of 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 1.1 kgCO₂e/ft² is about half of the group average of 2.1 kgCO₂e/ft².
At 126,059 sq ft, it is about 16% 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 Coggins Square Apartments's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Coggins Square Apartments, covering report years 2019–2024. Its ENERGY STAR score went from 95 in 2019 to 100 in 2024 (+5 points). Site EUI moved from 20.7 kBtu/ft² (2019) to 18.6 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 158 tCO₂e to 144 tCO₂e over the same span (down 9%).
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. Coggins Square Apartments's 18.6 kBtu/ft² across 126,059 sq ft works out to about 2.3 billion Btu (687 MWh-equivalent) in 2024. The disclosure also reports 410,970 kWh of electricity and 9,497 therms of natural gas for the year.
Which law requires Coggins Square Apartments to report its energy use?
Coggins Square Apartments 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:5029908:2024). 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
- The Confluence Apartments· 126,000 sq ft · score 100 (A)
- Lofts At Albert Park - Greystar· 126,000 sq ft · score 41 (D)
- Mason On Mariposa· 126,000 sq ft · score 79 (B)
- Mission Villa· 125,994 sq ft · score 100 (A)
- Greenback Manor· 125,981 sq ft · score 67 (C)
- Harvard Townhome Apartments· 125,928 sq ft · score 88 (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 Coggins Square Apartments's energy grade?
Coggins Square Apartments 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 Coggins Square Apartments use?
Its 2024 site energy-use intensity was 18.6 kBtu/ft² across 126,059 sq ft, including 410,970 kWh of electricity and 9,497 therms of natural gas.
What are Coggins Square Apartments's carbon emissions?
Coggins Square Apartments reported 144 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2024.
Where is Coggins Square Apartments?
Coggins Square Apartments is at 1316 Las Juntas Way, Walnut Creek, in Walnut Creek, California 94597. Its coordinates are 37.93047, -122.05489 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Coggins Square Apartments and when was it built?
Coggins Square Apartments has 126,059 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 Coggins Square Apartments 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, “Coggins Square Apartments, Walnut Creek, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/coggins-square-apartments-baee84f2 (data as of July 9, 2026).