Britannia Gateway Ii 225
Office in California, CA · 225 Gateway Blvd., South San Francisco · 94080
At a glance
Britannia Gateway Ii 225 is a 64,242-square-foot office building at 225 Gateway Blvd., South San Francisco in South San Francisco, California, built in 1990. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 249.8 kBtu/ft² and 975 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 1 (band D) |
| Site EUI | 249.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 975 tCO₂e |
| GHG intensity | 15.2 kgCO₂e/ft² |
| Electricity | 2,069,663 kWh |
| Natural gas | 92,508 therms |
| Gross floor area | 64,242 sq ft |
| Source record | california:4036464:2022 |
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
- 225 Gateway Blvd., South San Francisco
- City
- California
- State
- California
- ZIP
- 94080
- Coordinates
- 37.65629, -122.40375
Within ~1 km
Nearby benchmarked buildings
- Bell South City (Cd025)score 100
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- Bmr-700 Gateway Blvdscore —
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- 213 East Grand Avenuescore —
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- 611 Gatewayscore 85
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- 651 Gatewayscore —
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Hotel · 277,842 sq ft
See also: most efficient in California · biggest emitters
How does Britannia Gateway Ii 225 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Britannia Gateway Ii 225's ENERGY STAR score of 1 compares with an average of 75 across the 4,912 that report a score; it scores higher than 0% of them and lower than 97%. Its site EUI of 249.8 kBtu/ft² is about 343% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 15.2 kgCO₂e/ft² is about 322% above the group average of 3.6 kgCO₂e/ft².
At 64,242 sq ft, it is about 58% below the average floor area of 151,937 sq ft for those buildings. It was built in 1990, 5 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.
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 points below 75, the threshold for ENERGY STAR certification. 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. Britannia Gateway Ii 225's 249.8 kBtu/ft² across 64,242 sq ft works out to about 16 billion Btu (4,703 MWh-equivalent) in 2022. The disclosure also reports 2,069,663 kWh of electricity and 92,508 therms of natural gas for the year.
Which law requires Britannia Gateway Ii 225 to report its energy use?
Britannia Gateway Ii 225 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:4036464:2022). 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 office buildings in California
- 960 Stewart Drive· 64,241 sq ft · EUI 4.0 kBtu/ft²
- 920 Stewart Drive· 64,241 sq ft · EUI 18.0 kBtu/ft²
- 945 Stewart Drive· 64,241 sq ft · score 17 (D)
- Hamilton Landing - Hangar 10· 64,231 sq ft · score 15 (D)
- 111 Santa Rosa Llc· 64,221 sq ft · score 88 (A)
- 550 15Th St· 64,200 sq ft · score 44 (D)
- 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 Britannia Gateway Ii 225's energy grade?
Britannia Gateway Ii 225 scores 1 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Britannia Gateway Ii 225 use?
Its 2022 site energy-use intensity was 249.8 kBtu/ft² across 64,242 sq ft, including 2,069,663 kWh of electricity and 92,508 therms of natural gas.
What are Britannia Gateway Ii 225's carbon emissions?
Britannia Gateway Ii 225 reported 975 tCO₂e of greenhouse-gas emissions (15.2 kgCO₂e/ft²) for 2022.
Where is Britannia Gateway Ii 225?
Britannia Gateway Ii 225 is at 225 Gateway Blvd., South San Francisco, in South San Francisco, California 94080. Its coordinates are 37.65629, -122.40375 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Britannia Gateway Ii 225 and when was it built?
Britannia Gateway Ii 225 has 64,242 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1990 as its year built. It is classed as office.
Is Britannia Gateway Ii 225 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, “Britannia Gateway Ii 225, South San Francisco, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/britannia-gateway-ii-225-42652bf3 (data as of July 9, 2026).