5799 Fontanoso Way
Office in California, CA · 5799 Fontanoso Way, San Jose · 95138
At a glance
5799 Fontanoso Way is a 93,650-square-foot office building at 5799 Fontanoso Way, San Jose in San Jose, California, built in 2000. 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 14.9 kBtu/ft² and 75 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 | 14.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 75 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 101,683 kWh |
| Gross floor area | 93,650 sq ft |
| Source record | california:5562412:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 14.9 kBtu/ft² | 75 tCO₂e |
| 2023 | 100 | ±0 | 15.0 kBtu/ft² | 84 tCO₂e |
| 2022 | 100 | ±0 | 14.9 kBtu/ft² | 82 tCO₂e |
| 2021 | 100 | 14.3 kBtu/ft² | 75 tCO₂e | |
| 2020 | — | 19.2 kBtu/ft² | 104 tCO₂e | |
| 2019 | 100 | 21.5 kBtu/ft² | 120 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
- 5799 Fontanoso Way, San Jose
- City
- California
- State
- California
- ZIP
- 95138
- Coordinates
- 37.25977, -121.78926
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 5799 Fontanoso Way compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 5799 Fontanoso Way'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 14.9 kBtu/ft² is about 74% 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 0.8 kgCO₂e/ft² is about 78% below the group average of 3.6 kgCO₂e/ft².
At 93,650 sq ft, it is about 38% below the average floor area of 151,937 sq ft for those buildings. It was built in 2000, 15 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 5799 Fontanoso Way's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 5799 Fontanoso Way, covering report years 2019–2024. Its ENERGY STAR score was 100 in both 2019 and 2024. Site EUI moved from 21.5 kBtu/ft² (2019) to 14.9 kBtu/ft² (2024), a 31% decrease. Reported emissions went from 120 tCO₂e to 75 tCO₂e over the same span (down 38%).
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. 5799 Fontanoso Way's 14.9 kBtu/ft² across 93,650 sq ft works out to about 1.4 billion Btu (409 MWh-equivalent) in 2024. The disclosure also reports 101,683 kWh of electricity for the year.
Which law requires 5799 Fontanoso Way to report its energy use?
5799 Fontanoso Way 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:5562412:2024). 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
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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 5799 Fontanoso Way's energy grade?
5799 Fontanoso Way 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 5799 Fontanoso Way use?
Its 2024 site energy-use intensity was 14.9 kBtu/ft² across 93,650 sq ft, including 101,683 kWh of electricity.
What are 5799 Fontanoso Way's carbon emissions?
5799 Fontanoso Way reported 75 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2024.
Where is 5799 Fontanoso Way?
5799 Fontanoso Way is at 5799 Fontanoso Way, San Jose, in San Jose, California 95138. Its coordinates are 37.25977, -121.78926 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 5799 Fontanoso Way and when was it built?
5799 Fontanoso Way has 93,650 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is 5799 Fontanoso Way 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, “5799 Fontanoso Way, San Jose, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/5799-fontanoso-way-6868e9b9 (data as of July 9, 2026).