Ca047_Building 11
Multifamily Housing in California, CA · 1259 Lakeside Drive, Sunnyvale · 94085
At a glance
Ca047_Building 11 is a 59,205-square-foot multifamily housing building at 1259 Lakeside Drive, Sunnyvale in Sunnyvale, California, built in 1998. In its 2019 California benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 29.9 kBtu/ft² and 108 tCO₂e of greenhouse-gas emissions. That score is higher than 29% 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 | 77 (band B) |
| Site EUI | 29.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 108 tCO₂e |
| GHG intensity | 1.8 kgCO₂e/ft² |
| Electricity | 275,372 kWh |
| Natural gas | 8,686 therms |
| Gross floor area | 59,205 sq ft |
| Source record | california:6704254:2019 |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1259 Lakeside Drive, Sunnyvale
- City
- California
- State
- California
- ZIP
- 94085
- Coordinates
- 37.38826, -121.99395
Within ~1 km
Nearby benchmarked buildings
Multifamily Housing · 822,898 sq ft
- Arches, The - 29401score 87
Multifamily Housing · 436,741 sq ft
- 1250 Lakeside (Lk156)score 100
Multifamily Housing · 435,552 sq ft
- 08014-Sunnyvalescore —
Self-Storage Facility · 231,417 sq ft
- Sunnyvale Ii Ca Riscore 91
Hotel · 149,210 sq ft
- Sunnyvale I Ca Riscore 87
Hotel · 147,186 sq ft
See also: most efficient in California · biggest emitters
How does Ca047_Building 11 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. Ca047_Building 11's ENERGY STAR score of 77 compares with an average of 82 across the 9,612 that report a score; it scores higher than 29% of them and lower than 70%. Its site EUI of 29.9 kBtu/ft² is about 13% 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 1.8 kgCO₂e/ft² is about 13% below the group average of 2.1 kgCO₂e/ft².
At 59,205 sq ft, it is about 61% below the average floor area of 150,919 sq ft for those buildings. It was built in 1998, 10 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 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 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. Ca047_Building 11's 29.9 kBtu/ft² across 59,205 sq ft works out to about 1.8 billion Btu (519 MWh-equivalent) in 2019. The disclosure also reports 275,372 kWh of electricity and 8,686 therms of natural gas for the year.
Which law requires Ca047_Building 11 to report its energy use?
Ca047_Building 11 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:6704254:2019). 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
- Lance Apartments· 59,200 sq ft · score 70 (B)
- 8003 Winter Gardens Blvd - Ab802· 59,200 sq ft · score 71 (B)
- Linda Vista· 59,199 sq ft · score 93 (A)
- 320 Shady Lane - Ab802· 59,194 sq ft · score 61 (C)
- Chateau Garnet Lp· 59,188 sq ft · score 99 (A)
- 206 W San Ysidro Blvd· 59,168 sq ft · score 100 (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 Ca047_Building 11's energy grade?
Ca047_Building 11 scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2019 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Ca047_Building 11 use?
Its 2019 site energy-use intensity was 29.9 kBtu/ft² across 59,205 sq ft, including 275,372 kWh of electricity and 8,686 therms of natural gas.
What are Ca047_Building 11's carbon emissions?
Ca047_Building 11 reported 108 tCO₂e of greenhouse-gas emissions (1.8 kgCO₂e/ft²) for 2019.
Where is Ca047_Building 11?
Ca047_Building 11 is at 1259 Lakeside Drive, Sunnyvale, in Sunnyvale, California 94085. Its coordinates are 37.38826, -121.99395 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ca047_Building 11 and when was it built?
Ca047_Building 11 has 59,205 sq ft of gross floor area, as reported in its 2019 disclosure. The disclosure lists 1998 as its year built. It is classed as multifamily housing.
Is Ca047_Building 11 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Ca047_Building 11, Sunnyvale, California — 2019 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ca047-building-11-4836b4c8 (data as of July 9, 2026).