Main Street Plaza
Multifamily Housing in California, CA · 333 West Main, Alhambra · 91801
At a glance
Main Street Plaza is a 63,430-square-foot multifamily housing building at 333 West Main, Alhambra in Alhambra, California, built in 1999. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 38.7 kBtu/ft² and 148 tCO₂e of greenhouse-gas emissions. That score is higher than 63% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 38.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 148 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 308,298 kWh |
| Natural gas | 14,371 therms |
| Gross floor area | 63,430 sq ft |
| Source record | california:20585495:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 97 | -1 | 38.7 kBtu/ft² | 148 tCO₂e |
| 2021 | 98 | 37.2 kBtu/ft² | 133 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
- 333 West Main, Alhambra
- City
- California
- State
- California
- ZIP
- 91801
- Coordinates
- 34.09331, -118.13088
Within ~1 km
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- 19-I1 Alhambra Courthousescore 67
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See also: most efficient in California · biggest emitters
How does Main Street Plaza 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. Main Street Plaza's ENERGY STAR score of 97 compares with an average of 82 across the 9,612 that report a score; it scores higher than 63% of them and lower than 34%. Its site EUI of 38.7 kBtu/ft² is about 13% 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 2.3 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 63,430 sq ft, it is about 58% below the average floor area of 150,919 sq ft for those buildings. It was built in 1999, 11 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 Main Street Plaza's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Main Street Plaza, covering report years 2021–2022. Its ENERGY STAR score went from 98 in 2021 to 97 in 2022 (-1 points); its best year on file was 2021, at 98. Site EUI moved from 37.2 kBtu/ft² (2021) to 38.7 kBtu/ft² (2022), an 4% increase. Reported emissions went from 133 tCO₂e to 148 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. Main Street Plaza's 38.7 kBtu/ft² across 63,430 sq ft works out to about 2.5 billion Btu (719 MWh-equivalent) in 2022. The disclosure also reports 308,298 kWh of electricity and 14,371 therms of natural gas for the year.
Which law requires Main Street Plaza to report its energy use?
Main Street Plaza 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 2022 disclosure (source record california:20585495:2022). 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
- Boulevard On Wilshire (Mt80) - Building 1· 63,427 sq ft · score 54 (D)
- Gables East - 1544No· 63,390 sq ft · score 81 (B)
- Vista Grande· 63,376 sq ft · score 100 (A)
- The Harlan Residents· 63,374 sq ft · score 100 (A)
- Gspa· 63,353 sq ft · score 100 (A)
- Clay Hill Condominium Homeowners Association· 63,337 sq ft · score 94 (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 Main Street Plaza's energy grade?
Main Street Plaza scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Main Street Plaza use?
Its 2022 site energy-use intensity was 38.7 kBtu/ft² across 63,430 sq ft, including 308,298 kWh of electricity and 14,371 therms of natural gas.
What are Main Street Plaza's carbon emissions?
Main Street Plaza reported 148 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2022.
Where is Main Street Plaza?
Main Street Plaza is at 333 West Main, Alhambra, in Alhambra, California 91801. Its coordinates are 34.09331, -118.13088 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Main Street Plaza and when was it built?
Main Street Plaza has 63,430 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1999 as its year built. It is classed as multifamily housing.
Is Main Street Plaza covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “Main Street Plaza, Alhambra, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/main-street-plaza-afc69e89 (data as of July 9, 2026).