Riviera Family Apartments
Multifamily Housing in California, CA · 1738 Riviera Avenue, Walnut Creek · 94596
At a glance
Riviera Family Apartments is a 41,408-square-foot multifamily housing building at 1738 Riviera Avenue, Walnut Creek in Walnut Creek, California, built in 2018. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 9 out of 100 (grade D), a site energy-use intensity of 51.7 kBtu/ft² and 138 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 9 (band D) |
| Site EUI | 51.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 138 tCO₂e |
| GHG intensity | 3.3 kgCO₂e/ft² |
| Electricity | 357,800 kWh |
| Natural gas | 9,730 therms |
| Gross floor area | 41,408 sq ft |
| Source record | california:9853606:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 9 | -71 | 51.7 kBtu/ft² | 138 tCO₂e |
| 2019 | 80 | 41.8 kBtu/ft² | 149 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
- 1738 Riviera Avenue, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94596
- Coordinates
- 37.90890, -122.06796
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Riviera Family 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. Riviera Family Apartments's ENERGY STAR score of 9 compares with an average of 82 across the 9,612 that report a score; it scores higher than 2% of them and lower than 98%. Its site EUI of 51.7 kBtu/ft² is about 50% 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 3.3 kgCO₂e/ft² is about 57% above the group average of 2.1 kgCO₂e/ft².
At 41,408 sq ft, it is about 73% below the average floor area of 150,919 sq ft for those buildings. It was built in 2018, 30 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 Riviera Family Apartments's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Riviera Family Apartments, covering report years 2019, 2023. Its ENERGY STAR score went from 80 in 2019 to 9 in 2023 (-71 points); its best year on file was 2019, at 80. Site EUI moved from 41.8 kBtu/ft² (2019) to 51.7 kBtu/ft² (2023), an 24% increase. Reported emissions went from 149 tCO₂e to 138 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 9 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 9 means the building performs better than about 9% of its national peers. BuildingCensus bands the score into report-card grades; 9 falls in band D — lowest band (1–54). It sits 66 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. Riviera Family Apartments's 51.7 kBtu/ft² across 41,408 sq ft works out to about 2.1 billion Btu (627 MWh-equivalent) in 2023. The disclosure also reports 357,800 kWh of electricity and 9,730 therms of natural gas for the year.
Which law requires Riviera Family Apartments to report its energy use?
Riviera Family 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 2023 disclosure (source record california:9853606:2023). 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
- Metro Center· 41,404 sq ft · score 57 (C)
- 13052 Dronfield Ave· 41,000 sq ft · EUI 20.4 kBtu/ft²
- Mercy Oaks Village· 40,920 sq ft · score 54 (D)
- Parnow Friendship House - Total· 40,840 sq ft · score 90 (A)
- 10108 Malaga Way, Rancho Cordova, Ca 95670, Usa· 40,757 sq ft · score 1 (D)
- 921 10Th St., Santa Monica, Ca 90403· 40,672 sq ft · score 73 (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 Riviera Family Apartments's energy grade?
Riviera Family Apartments scores 9 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Riviera Family Apartments use?
Its 2023 site energy-use intensity was 51.7 kBtu/ft² across 41,408 sq ft, including 357,800 kWh of electricity and 9,730 therms of natural gas.
What are Riviera Family Apartments's carbon emissions?
Riviera Family Apartments reported 138 tCO₂e of greenhouse-gas emissions (3.3 kgCO₂e/ft²) for 2023.
Where is Riviera Family Apartments?
Riviera Family Apartments is at 1738 Riviera Avenue, Walnut Creek, in Walnut Creek, California 94596. Its coordinates are 37.90890, -122.06796 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Riviera Family Apartments and when was it built?
Riviera Family Apartments has 41,408 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2018 as its year built. It is classed as multifamily housing.
Is Riviera Family Apartments covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “Riviera Family Apartments, Walnut Creek, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/riviera-family-apartments-7fe90fc8 (data as of July 9, 2026).