San Ramon/Norris Cyn
Office in California, CA · 2551 San Ramon Valley Boulevard, San Ramon · 94583
At a glance
San Ramon/Norris Cyn is a 52,149-square-foot office building at 2551 San Ramon Valley Boulevard, San Ramon in San Ramon, California, built in 1982. In its 2021 California benchmarking disclosure it reported an ENERGY STAR score of 43 out of 100 (grade D), a site energy-use intensity of 62.5 kBtu/ft² and 187 tCO₂e of greenhouse-gas emissions. That score is higher than 13% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 43 (band D) |
| Site EUI | 62.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 187 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 622,691 kWh |
| Natural gas | 11,032 therms |
| Gross floor area | 52,149 sq ft |
| Source record | california:8644685:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | 43 | -1 | 62.5 kBtu/ft² | 187 tCO₂e |
| 2020 | 44 | 60.3 kBtu/ft² | 183 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
- 2551 San Ramon Valley Boulevard, San Ramon
- City
- California
- State
- California
- ZIP
- 94583
- Coordinates
- 37.77120, -121.97447
Within ~1 km
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See also: most efficient in California · biggest emitters
How does San Ramon/Norris Cyn compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. San Ramon/Norris Cyn's ENERGY STAR score of 43 compares with an average of 75 across the 4,912 that report a score; it scores higher than 13% of them and lower than 87%. Its site EUI of 62.5 kBtu/ft² is about 11% 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 3.6 kgCO₂e/ft² is roughly in line with the group average of 3.6 kgCO₂e/ft².
At 52,149 sq ft, it is about 66% below the average floor area of 151,937 sq ft for those buildings. Its 1982 construction date is close to 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 San Ramon/Norris Cyn's energy performance changed over time?
BuildingCensus holds 2 California disclosures for San Ramon/Norris Cyn, covering report years 2020–2021. Its ENERGY STAR score went from 44 in 2020 to 43 in 2021 (-1 points); its best year on file was 2020, at 44. Site EUI moved from 60.3 kBtu/ft² (2020) to 62.5 kBtu/ft² (2021), an 4% increase. Reported emissions went from 183 tCO₂e to 187 tCO₂e over the same span (up 2%).
What does an ENERGY STAR score of 43 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 43 means the building performs better than about 43% of its national peers. BuildingCensus bands the score into report-card grades; 43 falls in band D — lowest band (1–54). It sits 32 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. San Ramon/Norris Cyn's 62.5 kBtu/ft² across 52,149 sq ft works out to about 3.3 billion Btu (955 MWh-equivalent) in 2021. The disclosure also reports 622,691 kWh of electricity and 11,032 therms of natural gas for the year.
Which law requires San Ramon/Norris Cyn to report its energy use?
San Ramon/Norris Cyn 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:8644685:2021). 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 office buildings in California
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- 590 Yvr - 590 Ygnacio Valley Rd, Walnut Creek, Ca 94596, Usa· 52,102 sq ft · score 67 (C)
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- 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 San Ramon/Norris Cyn's energy grade?
San Ramon/Norris Cyn scores 43 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2021 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does San Ramon/Norris Cyn use?
Its 2021 site energy-use intensity was 62.5 kBtu/ft² across 52,149 sq ft, including 622,691 kWh of electricity and 11,032 therms of natural gas.
What are San Ramon/Norris Cyn's carbon emissions?
San Ramon/Norris Cyn reported 187 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2021.
Where is San Ramon/Norris Cyn?
San Ramon/Norris Cyn is at 2551 San Ramon Valley Boulevard, San Ramon, in San Ramon, California 94583. Its coordinates are 37.77120, -121.97447 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is San Ramon/Norris Cyn and when was it built?
San Ramon/Norris Cyn has 52,149 sq ft of gross floor area, as reported in its 2021 disclosure. The disclosure lists 1982 as its year built. It is classed as office.
Is San Ramon/Norris Cyn 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, “San Ramon/Norris Cyn, San Ramon, California — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/california/san-ramon-norris-cyn-b3db8af7 (data as of July 9, 2026).