Mountain Shadows
Multifamily Housing in California, CA · 2775 Valley Boulevard, West Covina · 91792
At a glance
Mountain Shadows is a 86,590-square-foot multifamily housing building at 2775 Valley Boulevard, West Covina in West Covina, California, built in 1981. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 35.8 kBtu/ft² and 184 tCO₂e of greenhouse-gas emissions. That score is higher than 58% 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 | 95 (band A) |
| Site EUI | 35.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 184 tCO₂e |
| GHG intensity | 2.1 kgCO₂e/ft² |
| Electricity | 334,927 kWh |
| Natural gas | 20,434 therms |
| Gross floor area | 86,590 sq ft |
| Source record | california:30875209:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | +5 | 35.8 kBtu/ft² | 184 tCO₂e |
| 2023 | 90 | 37.0 kBtu/ft² | 190 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
- 2775 Valley Boulevard, West Covina
- City
- California
- State
- California
- ZIP
- 91792
- Coordinates
- 34.00274, -117.88462
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Mountain Shadows 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. Mountain Shadows's ENERGY STAR score of 95 compares with an average of 82 across the 9,612 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 35.8 kBtu/ft² is roughly in line with the average of 34.4 kBtu/ft². Its emissions intensity of 2.1 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 86,590 sq ft, it is about 43% below the average floor area of 150,919 sq ft for those buildings. It was built in 1981, 7 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 Mountain Shadows's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Mountain Shadows, covering report years 2023–2024. Its ENERGY STAR score went from 90 in 2023 to 95 in 2024 (+5 points). Site EUI moved from 37.0 kBtu/ft² (2023) to 35.8 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 190 tCO₂e to 184 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. Mountain Shadows's 35.8 kBtu/ft² across 86,590 sq ft works out to about 3.1 billion Btu (908 MWh-equivalent) in 2024. The disclosure also reports 334,927 kWh of electricity and 20,434 therms of natural gas for the year.
Which law requires Mountain Shadows to report its energy use?
Mountain Shadows 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:30875209:2024). 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
- 30472 Gateway Pl· 86,585 sq ft · score 99 (A)
- 520 Van Buren Ave· 86,571 sq ft · score 100 (A)
- Acof - Villas At Gower - 1726 N Gower St: Villas At Gower - 1726 N Gower St· 86,557 sq ft · score 45 (D)
- Mirandela (Rm63)· 86,550 sq ft · score 99 (A)
- 163 North Main St· 86,490 sq ft · EUI 33.9 kBtu/ft²
- Candara Hancock Park (Cd58)· 86,469 sq ft · score 65 (C)
- 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 Mountain Shadows's energy grade?
Mountain Shadows scores 95 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 Mountain Shadows use?
Its 2024 site energy-use intensity was 35.8 kBtu/ft² across 86,590 sq ft, including 334,927 kWh of electricity and 20,434 therms of natural gas.
What are Mountain Shadows's carbon emissions?
Mountain Shadows reported 184 tCO₂e of greenhouse-gas emissions (2.1 kgCO₂e/ft²) for 2024.
Where is Mountain Shadows?
Mountain Shadows is at 2775 Valley Boulevard, West Covina, in West Covina, California 91792. Its coordinates are 34.00274, -117.88462 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Mountain Shadows and when was it built?
Mountain Shadows has 86,590 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1981 as its year built. It is classed as multifamily housing.
Is Mountain Shadows 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, “Mountain Shadows, West Covina, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/mountain-shadows-e786cfb8 (data as of July 9, 2026).