Ridgeway Apartments
Multifamily Housing in California, CA · 141 Donahue Street, Sausalito · 94965
At a glance
Ridgeway Apartments is a 355,716-square-foot multifamily housing building at 141 Donahue Street, Sausalito in Sausalito, California, built in 1970. 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 10.5 kBtu/ft² and 245 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 | 10.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 245 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 426,599 kWh |
| Natural gas | 27,992 therms |
| Gross floor area | 355,716 sq ft |
| Source record | california:31529819:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 10.5 kBtu/ft² | 245 tCO₂e |
| 2023 | 99 | ±0 | 13.7 kBtu/ft² | 293 tCO₂e |
| 2022 | 99 | 13.7 kBtu/ft² | 302 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
- 141 Donahue Street, Sausalito
- City
- California
- State
- California
- ZIP
- 94965
- Coordinates
- 37.87159, -122.51153
Within ~1 km
Nearby benchmarked buildings
- Summit At Sausalito - 29862score 93
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- Summit At Sausalito (Rc28)score 97
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- Ponderosa Estatesscore 94
Multifamily Housing · 74,584 sq ft
- Mlk Campusscore 81
K-12 School · 61,200 sq ft
See also: most efficient in California · biggest emitters
How does Ridgeway 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. Ridgeway 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 10.5 kBtu/ft² is about 69% below 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 0.7 kgCO₂e/ft² is about 67% below the group average of 2.1 kgCO₂e/ft².
At 355,716 sq ft, it is about 136% above the average floor area of 150,919 sq ft for those buildings. It was built in 1970, 18 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 Ridgeway Apartments's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Ridgeway Apartments, covering report years 2022–2024. Its ENERGY STAR score went from 99 in 2022 to 100 in 2024 (+1 points). Site EUI moved from 13.7 kBtu/ft² (2022) to 10.5 kBtu/ft² (2024), a 23% decrease. Reported emissions went from 302 tCO₂e to 245 tCO₂e over the same span (down 19%).
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. Ridgeway Apartments's 10.5 kBtu/ft² across 355,716 sq ft works out to about 3.7 billion Btu (1,095 MWh-equivalent) in 2024. The disclosure also reports 426,599 kWh of electricity and 27,992 therms of natural gas for the year.
Which law requires Ridgeway Apartments to report its energy use?
Ridgeway 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:31529819:2024). 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
- 2095 West Spring St· 355,496 sq ft · score 100 (A)
- Amli Uptown Orange· 355,172 sq ft · score 57 (C)
- Santana Heights (Sn194)· 355,140 sq ft · score 69 (C)
- Annadel (Nd54)· 354,787 sq ft · score 94 (A)
- 1700 N Community Dr· 354,702 sq ft · score 100 (A)
- Westside Terrace· 354,406 sq ft · score 91 (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 Ridgeway Apartments's energy grade?
Ridgeway 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 Ridgeway Apartments use?
Its 2024 site energy-use intensity was 10.5 kBtu/ft² across 355,716 sq ft, including 426,599 kWh of electricity and 27,992 therms of natural gas.
What are Ridgeway Apartments's carbon emissions?
Ridgeway Apartments reported 245 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024.
Where is Ridgeway Apartments?
Ridgeway Apartments is at 141 Donahue Street, Sausalito, in Sausalito, California 94965. Its coordinates are 37.87159, -122.51153 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ridgeway Apartments and when was it built?
Ridgeway Apartments has 355,716 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1970 as its year built. It is classed as multifamily housing.
Is Ridgeway 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, “Ridgeway Apartments, Sausalito, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ridgeway-apartments-03f09f11 (data as of July 9, 2026).