Main Street Cupertino Lofts-Greystar
Multifamily Housing in California, CA · 19550 Vallco Pkwy, Cupertino · 95014
At a glance
Main Street Cupertino Lofts-Greystar is a 131,946-square-foot multifamily housing building at 19550 Vallco Pkwy, Cupertino in Cupertino, California, built in 2000. In its 2021 California benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 32.4 kBtu/ft² and 238 tCO₂e of greenhouse-gas emissions. That score is higher than 28% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 76 (band B) |
| Site EUI | 32.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 238 tCO₂e |
| GHG intensity | 1.8 kgCO₂e/ft² |
| Electricity | 509,383 kWh |
| Natural gas | 25,081 therms |
| Gross floor area | 131,946 sq ft |
| Source record | california:6870571:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | 76 | -12 | 32.4 kBtu/ft² | 238 tCO₂e |
| 2020 | 88 | +39 | 30.0 kBtu/ft² | 232 tCO₂e |
| 2019 | 49 | 37.5 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
- 19550 Vallco Pkwy, Cupertino
- City
- California
- State
- California
- ZIP
- 95014
- Coordinates
- 37.32503, -122.01076
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Main Street Cupertino Lofts-Greystar 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 Cupertino Lofts-Greystar's ENERGY STAR score of 76 compares with an average of 82 across the 9,612 that report a score; it scores higher than 28% of them and lower than 71%. Its site EUI of 32.4 kBtu/ft² is roughly in line with 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 1.8 kgCO₂e/ft² is about 14% below the group average of 2.1 kgCO₂e/ft².
At 131,946 sq ft, it is about 13% 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 Main Street Cupertino Lofts-Greystar's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Main Street Cupertino Lofts-Greystar, covering report years 2019–2021. Its ENERGY STAR score went from 49 in 2019 to 76 in 2021 (+27 points); its best year on file was 2020, at 88. Site EUI moved from 37.5 kBtu/ft² (2019) to 32.4 kBtu/ft² (2021), a 14% decrease. Reported emissions went from 302 tCO₂e to 238 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 falls in band B — above median (70–84). 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 Cupertino Lofts-Greystar's 32.4 kBtu/ft² across 131,946 sq ft works out to about 4.3 billion Btu (1,253 MWh-equivalent) in 2021. The disclosure also reports 509,383 kWh of electricity and 25,081 therms of natural gas for the year.
Which law requires Main Street Cupertino Lofts-Greystar to report its energy use?
Main Street Cupertino Lofts-Greystar 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 2021 disclosure (source record california:6870571:2021). 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
- 1575 Heather Dr, Yuba City, Ca 95993, Usa· 131,928 sq ft · score 100 (A)
- Parc Medallion Llc· 131,917 sq ft · score 96 (A)
- Shadow Point - Essex (Sh291)· 131,890 sq ft · score 98 (A)
- West Angeles Villas· 131,879 sq ft · score 77 (B)
- Cupertino Park Center: Cupertino Park Center· 131,806 sq ft · score 83 (B)
- El Paseo Family· 131,796 sq ft · score 97 (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 Cupertino Lofts-Greystar's energy grade?
Main Street Cupertino Lofts-Greystar scores 76 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2021 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Main Street Cupertino Lofts-Greystar use?
Its 2021 site energy-use intensity was 32.4 kBtu/ft² across 131,946 sq ft, including 509,383 kWh of electricity and 25,081 therms of natural gas.
What are Main Street Cupertino Lofts-Greystar's carbon emissions?
Main Street Cupertino Lofts-Greystar reported 238 tCO₂e of greenhouse-gas emissions (1.8 kgCO₂e/ft²) for 2021.
Where is Main Street Cupertino Lofts-Greystar?
Main Street Cupertino Lofts-Greystar is at 19550 Vallco Pkwy, Cupertino, in Cupertino, California 95014. Its coordinates are 37.32503, -122.01076 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Main Street Cupertino Lofts-Greystar and when was it built?
Main Street Cupertino Lofts-Greystar has 131,946 sq ft of gross floor area, as reported in its 2021 disclosure. The disclosure lists 2000 as its year built. It is classed as multifamily housing.
Is Main Street Cupertino Lofts-Greystar covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2021 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 Cupertino Lofts-Greystar, Cupertino, California — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/california/main-street-cupertino-lofts-greystar-87dba7a5 (data as of July 9, 2026).