Building 44, Ssf, Genentech
Office in California, CA · 455 East Grand Avenue, South San Francisco · 94080
At a glance
Building 44, Ssf, Genentech is a 118,678-square-foot office building at 455 East Grand Avenue, South San Francisco in South San Francisco, California, built in 2006. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 30.8 kBtu/ft² and 204 tCO₂e of greenhouse-gas emissions. That score is higher than 91% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 30.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 204 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 196,073 kWh |
| Natural gas | 30,103 therms |
| Gross floor area | 118,678 sq ft |
| Source record | california:12432365:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 30.8 kBtu/ft² | 204 tCO₂e |
| 2023 | 99 | ±0 | 37.4 kBtu/ft² | 247 tCO₂e |
| 2022 | 99 | +15 | 41.0 kBtu/ft² | 277 tCO₂e |
| 2019 | 84 | 84.4 kBtu/ft² | 559 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 455 East Grand Avenue, South San Francisco
- City
- California
- State
- California
- ZIP
- 94080
- Coordinates
- 37.65135, -122.38296
Within ~1 km
Nearby benchmarked buildings
- 201 Haskins Wayscore —
Laboratory · 465,348 sq ft
- Building 35, Ssf, Genentechscore 99
Office · 254,000 sq ft
- T09score —
Self-Storage Facility · 243,067 sq ft
- B09score —
Manufacturing/Industrial Plant · 192,300 sq ft
- Building 25 & 26, Ssf, Genentechscore 96
Office · 180,179 sq ft
- Building 40, Ssf, Genentechscore 100
Office · 166,365 sq ft
See also: most efficient in California · biggest emitters
How does Building 44, Ssf, Genentech compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Building 44, Ssf, Genentech's ENERGY STAR score of 100 compares with an average of 75 across the 4,912 that report a score; it scores higher than 91% of them. Its site EUI of 30.8 kBtu/ft² is about half of the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.7 kgCO₂e/ft² is about half of the group average of 3.6 kgCO₂e/ft².
At 118,678 sq ft, it is about 22% below the average floor area of 151,937 sq ft for those buildings. It was built in 2006, 21 years later than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Building 44, Ssf, Genentech's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Building 44, Ssf, Genentech, covering report years 2019, 2022, 2023, 2024. Its ENERGY STAR score went from 84 in 2019 to 100 in 2024 (+16 points). Site EUI moved from 84.4 kBtu/ft² (2019) to 30.8 kBtu/ft² (2024), a 64% decrease. Reported emissions went from 559 tCO₂e to 204 tCO₂e over the same span (down 63%).
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. Building 44, Ssf, Genentech's 30.8 kBtu/ft² across 118,678 sq ft works out to about 3.7 billion Btu (1,071 MWh-equivalent) in 2024. The disclosure also reports 196,073 kWh of electricity and 30,103 therms of natural gas for the year.
Which law requires Building 44, Ssf, Genentech to report its energy use?
Building 44, Ssf, Genentech 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:12432365:2024). 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 office buildings in California
- 2001 Wilshire· 118,675 sq ft · score 96 (A)
- City Personnel Department· 118,664 sq ft · score 35 (D)
- Synopsys Sunnyvale Bldg 8· 118,650 sq ft · EUI 39.5 kBtu/ft²
- 222 E Huntington Dr· 118,628 sq ft · score 66 (C)
- 85 Enterprise· 118,607 sq ft · score 97 (A)
- Fre 126· 118,535 sq ft · score 98 (A)
- Office buildings in California· 6,214 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 Building 44, Ssf, Genentech's energy grade?
Building 44, Ssf, Genentech scores 100 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 Building 44, Ssf, Genentech use?
Its 2024 site energy-use intensity was 30.8 kBtu/ft² across 118,678 sq ft, including 196,073 kWh of electricity and 30,103 therms of natural gas.
What are Building 44, Ssf, Genentech's carbon emissions?
Building 44, Ssf, Genentech reported 204 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2024.
Where is Building 44, Ssf, Genentech?
Building 44, Ssf, Genentech is at 455 East Grand Avenue, South San Francisco, in South San Francisco, California 94080. Its coordinates are 37.65135, -122.38296 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Building 44, Ssf, Genentech and when was it built?
Building 44, Ssf, Genentech has 118,678 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2006 as its year built. It is classed as office.
Is Building 44, Ssf, Genentech 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, “Building 44, Ssf, Genentech, South San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/building-44-ssf-genentech-fe69b827 (data as of July 9, 2026).