3833 N 1St St - Infineon
Office in California, CA · 3833 North First Street, San Jose · 95134
At a glance
3833 N 1St St - Infineon is a 80,908-square-foot office building at 3833 North First Street, San Jose in San Jose, California, built in 1980. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 46.0 kBtu/ft² and 233 tCO₂e of greenhouse-gas emissions. That score is higher than 54% 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 | 86 (band A) |
| Site EUI | 46.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 233 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 821,469 kWh |
| Gross floor area | 80,908 sq ft |
| Source record | california:6828372:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | -5 | 46.0 kBtu/ft² | 233 tCO₂e |
| 2023 | 91 | -8 | 40.3 kBtu/ft² | 223 tCO₂e |
| 2022 | 99 | -1 | 25.0 kBtu/ft² | 129 tCO₂e |
| 2021 | 100 | +63 | 22.0 kBtu/ft² | 114 tCO₂e |
| 2020 | 37 | 88.0 kBtu/ft² | 461 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
- 3833 North First Street, San Jose
- City
- California
- State
- California
- ZIP
- 95134
- Coordinates
- 37.41130, -121.94962
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 3833 N 1St St - Infineon compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 3833 N 1St St - Infineon's ENERGY STAR score of 86 compares with an average of 75 across the 4,912 that report a score; it scores higher than 54% of them and lower than 44%. Its site EUI of 46.0 kBtu/ft² is about 18% below 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 2.9 kgCO₂e/ft² is about 20% below the group average of 3.6 kgCO₂e/ft².
At 80,908 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. It was built in 1980, 5 years earlier 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 3833 N 1St St - Infineon's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 3833 N 1St St - Infineon, covering report years 2020–2024. Its ENERGY STAR score went from 37 in 2020 to 86 in 2024 (+49 points); its best year on file was 2021, at 100. Site EUI moved from 88.0 kBtu/ft² (2020) to 46.0 kBtu/ft² (2024), a 48% decrease. Reported emissions went from 461 tCO₂e to 233 tCO₂e over the same span (down 49%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. 3833 N 1St St - Infineon's 46.0 kBtu/ft² across 80,908 sq ft works out to about 3.7 billion Btu (1,091 MWh-equivalent) in 2024. The disclosure also reports 821,469 kWh of electricity for the year.
Which law requires 3833 N 1St St - Infineon to report its energy use?
3833 N 1St St - Infineon 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:6828372:2024). 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
- 3003 Bunker Hill Lane· 80,878 sq ft · EUI 34.3 kBtu/ft²
- 322502 - Oakland Office And Cso - United States· 80,872 sq ft
- 21680 Gateway Center· 80,753 sq ft
- 210 Post St, San Francisco, Ca 94108, Usa· 80,732 sq ft · score 96 (A)
- Sherman Oaks Professional Plaza· 80,715 sq ft · score 69 (C)
- 2400 Venture Oaks· 80,697 sq ft · score 83 (B)
- 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 3833 N 1St St - Infineon's energy grade?
3833 N 1St St - Infineon scores 86 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 3833 N 1St St - Infineon use?
Its 2024 site energy-use intensity was 46.0 kBtu/ft² across 80,908 sq ft, including 821,469 kWh of electricity.
What are 3833 N 1St St - Infineon's carbon emissions?
3833 N 1St St - Infineon reported 233 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2024.
Where is 3833 N 1St St - Infineon?
3833 N 1St St - Infineon is at 3833 North First Street, San Jose, in San Jose, California 95134. Its coordinates are 37.41130, -121.94962 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 3833 N 1St St - Infineon and when was it built?
3833 N 1St St - Infineon has 80,908 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1980 as its year built. It is classed as office.
Is 3833 N 1St St - Infineon 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, “3833 N 1St St - Infineon, San Jose, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/3833-n-1st-st-infineon-34ccf48b (data as of July 9, 2026).