Main Street Cupertino Lofts
Multifamily Housing in California, CA · 19550 Vallco Pkwy, Cupertino · 95014
At a glance
Main Street Cupertino Lofts is a 120,700-square-foot multifamily housing building at 19550 Vallco Pkwy, Cupertino in Cupertino, California, built in 2017. In its 2019 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 9.8 kBtu/ft² and 83 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 2019
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 9.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 83 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 346,209 kWh |
| Gross floor area | 120,700 sq ft |
| Source record | california:9683868:2019 |
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 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'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 9.8 kBtu/ft² is about 72% 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 120,700 sq ft, it is about 20% below the average floor area of 150,919 sq ft for those buildings. It was built in 2017, 29 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.
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. Main Street Cupertino Lofts's 9.8 kBtu/ft² across 120,700 sq ft works out to about 1.2 billion Btu (347 MWh-equivalent) in 2019. The disclosure also reports 346,209 kWh of electricity for the year.
Which law requires Main Street Cupertino Lofts to report its energy use?
Main Street Cupertino Lofts 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 2019 disclosure (source record california:9683868:2019). 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
- 1518 Sams Hill Road - Ab802· 120,666 sq ft · score 91 (A)
- 4800 Marconi Ave· 120,568 sq ft · score 36 (D)
- Rancho Hills Apartments· 120,550 sq ft · score 99 (A)
- 1830 Ocean Ave· 120,520 sq ft · score 100 (A)
- Sierra Ridge - Blvd· 120,480 sq ft · score 96 (A)
- Station 101· 120,473 sq ft · score 84 (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 Main Street Cupertino Lofts's energy grade?
Main Street Cupertino Lofts scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2019 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Main Street Cupertino Lofts use?
Its 2019 site energy-use intensity was 9.8 kBtu/ft² across 120,700 sq ft, including 346,209 kWh of electricity.
What are Main Street Cupertino Lofts's carbon emissions?
Main Street Cupertino Lofts reported 83 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2019.
Where is Main Street Cupertino Lofts?
Main Street Cupertino Lofts 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 and when was it built?
Main Street Cupertino Lofts has 120,700 sq ft of gross floor area, as reported in its 2019 disclosure. The disclosure lists 2017 as its year built. It is classed as multifamily housing.
Is Main Street Cupertino Lofts covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2019 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, Cupertino, California — 2019 benchmarking disclosure”, https://buildingcensus.com/buildings/california/main-street-cupertino-lofts-d9567416 (data as of July 9, 2026).