Phs | Ca | Corporate Office | New Building 3480
Office in California, CA · 3480 East Guasti Road, Ontario · 91761
At a glance
Phs | Ca | Corporate Office | New Building 3480 is a 79,455-square-foot office building at 3480 East Guasti Road, Ontario in Ontario, California, built in 2019. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 70.9 kBtu/ft² and 332 tCO₂e of greenhouse-gas emissions. That score is higher than 59% 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 | 88 (band A) |
| Site EUI | 70.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 332 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 439,628 kWh |
| Natural gas | 27,235 therms |
| Gross floor area | 79,455 sq ft |
| Source record | california:35593718:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | -5 | 70.9 kBtu/ft² | 332 tCO₂e |
| 2023 | 93 | 57.9 kBtu/ft² | 282 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
- 3480 East Guasti Road, Ontario
- City
- California
- State
- California
- ZIP
- 91761
- Coordinates
- 34.06452, -117.57650
Within ~1 km
Nearby benchmarked buildings
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- 3633 Inland Empire Blvd.score 77
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- 3525 E. Airport Drivescore 100
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- Embassy Suitesscore 95
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- 3281 East Guasti Roadscore 88
Mixed Use Property · 149,158 sq ft
See also: most efficient in California · biggest emitters
How does Phs | Ca | Corporate Office | New Building 3480 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Phs | Ca | Corporate Office | New Building 3480's ENERGY STAR score of 88 compares with an average of 75 across the 4,912 that report a score; it scores higher than 59% of them and lower than 39%. Its site EUI of 70.9 kBtu/ft² is about 26% 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 4.2 kgCO₂e/ft² is about 16% above the group average of 3.6 kgCO₂e/ft².
At 79,455 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. It was built in 2019, 34 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 Phs | Ca | Corporate Office | New Building 3480's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Phs | Ca | Corporate Office | New Building 3480, covering report years 2023–2024. Its ENERGY STAR score went from 93 in 2023 to 88 in 2024 (-5 points); its best year on file was 2023, at 93. Site EUI moved from 57.9 kBtu/ft² (2023) to 70.9 kBtu/ft² (2024), an 22% increase. Reported emissions went from 282 tCO₂e to 332 tCO₂e over the same span (up 18%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. Phs | Ca | Corporate Office | New Building 3480's 70.9 kBtu/ft² across 79,455 sq ft works out to about 5.6 billion Btu (1,651 MWh-equivalent) in 2024. The disclosure also reports 439,628 kWh of electricity and 27,235 therms of natural gas for the year.
Which law requires Phs | Ca | Corporate Office | New Building 3480 to report its energy use?
Phs | Ca | Corporate Office | New Building 3480 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:35593718:2024). 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
- Shso-2300 River Plaza Dr· 79,436 sq ft · score 82 (B)
- 1255 Corporate Center· 79,428 sq ft · score 78 (B)
- Alton Deere· 79,381 sq ft · score 77 (B)
- 385 Moffett Park Dr· 79,372 sq ft · score 39 (D)
- 385 Moffett Park Drive· 79,372 sq ft · score 93 (A)
- Align Technology - Bldg. 3· 79,341 sq ft · score 28 (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 Phs | Ca | Corporate Office | New Building 3480's energy grade?
Phs | Ca | Corporate Office | New Building 3480 scores 88 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 Phs | Ca | Corporate Office | New Building 3480 use?
Its 2024 site energy-use intensity was 70.9 kBtu/ft² across 79,455 sq ft, including 439,628 kWh of electricity and 27,235 therms of natural gas.
What are Phs | Ca | Corporate Office | New Building 3480's carbon emissions?
Phs | Ca | Corporate Office | New Building 3480 reported 332 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is Phs | Ca | Corporate Office | New Building 3480?
Phs | Ca | Corporate Office | New Building 3480 is at 3480 East Guasti Road, Ontario, in Ontario, California 91761. Its coordinates are 34.06452, -117.57650 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Phs | Ca | Corporate Office | New Building 3480 and when was it built?
Phs | Ca | Corporate Office | New Building 3480 has 79,455 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2019 as its year built. It is classed as office.
Is Phs | Ca | Corporate Office | New Building 3480 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, “Phs | Ca | Corporate Office | New Building 3480, Ontario, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/phs-ca-corporate-office-new-building-3480-070fcbba (data as of July 9, 2026).