Santa Clara Tower Ii
Office in California, CA · 3965 Freedom Circle, Santa Clara · 95054
At a glance
Santa Clara Tower Ii is a 232,730-square-foot office building at 3965 Freedom Circle, Santa Clara in Santa Clara, California, built in 1998. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 25.1 kBtu/ft² and 359 tCO₂e of greenhouse-gas emissions. That score is higher than 82% 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 | 97 (band A) |
| Site EUI | 25.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 359 tCO₂e |
| GHG intensity | 1.5 kgCO₂e/ft² |
| Electricity | 1,272,837 kWh |
| Natural gas | 13,393 therms |
| Gross floor area | 232,730 sq ft |
| Source record | california:3696619:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 97 | +1 | 25.1 kBtu/ft² | 359 tCO₂e |
| 2023 | 96 | ±0 | 26.1 kBtu/ft² | 391 tCO₂e |
| 2022 | 96 | ±0 | 26.7 kBtu/ft² | 410 tCO₂e |
| 2021 | 96 | ±0 | 24.4 kBtu/ft² | 340 tCO₂e |
| 2020 | 96 | +27 | 24.6 kBtu/ft² | 369 tCO₂e |
| 2019 | 69 | -24 | 44.5 kBtu/ft² | 704 tCO₂e |
| 2018 | 93 | 94.2 kBtu/ft² | 1,511 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
- 3965 Freedom Circle, Santa Clara
- City
- California
- State
- California
- ZIP
- 95054
- Coordinates
- 37.38582, -121.97304
Within ~1 km
Nearby benchmarked buildings
- Intel Mission Campusscore —
Mixed Use Property · 2,215,115 sq ft
- 24Hundred On Missionscore 100
Office · 586,061 sq ft
- 33734-Sjcga-Santa Clara Marriottscore 88
Hotel · 477,525 sq ft
- Santa Clara Square Vscore 100
Multifamily Housing · 400,935 sq ft
- Santa Clara Square Viiscore 99
Multifamily Housing · 361,507 sq ft
- Mission Tower Iscore 92
Office · 311,349 sq ft
See also: most efficient in California · biggest emitters
How does Santa Clara Tower Ii compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Santa Clara Tower Ii's ENERGY STAR score of 97 compares with an average of 75 across the 4,912 that report a score; it scores higher than 82% of them and lower than 15%. Its site EUI of 25.1 kBtu/ft² is about 55% 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 1.5 kgCO₂e/ft² is about 57% below the group average of 3.6 kgCO₂e/ft².
At 232,730 sq ft, it is about 53% above the average floor area of 151,937 sq ft for those buildings. It was built in 1998, 13 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 Santa Clara Tower Ii's energy performance changed over time?
BuildingCensus holds 7 California disclosures for Santa Clara Tower Ii, covering report years 2018–2024. Its ENERGY STAR score went from 93 in 2018 to 97 in 2024 (+4 points). Site EUI moved from 94.2 kBtu/ft² (2018) to 25.1 kBtu/ft² (2024), a 73% decrease. Reported emissions went from 1,511 tCO₂e to 359 tCO₂e over the same span (down 76%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. Santa Clara Tower Ii's 25.1 kBtu/ft² across 232,730 sq ft works out to about 5.8 billion Btu (1,712 MWh-equivalent) in 2024. The disclosure also reports 1,272,837 kWh of electricity and 13,393 therms of natural gas for the year.
Which law requires Santa Clara Tower Ii to report its energy use?
Santa Clara Tower Ii 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:3696619:2024). 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
- 100 Bush St.· 232,457 sq ft · EUI 34.5 kBtu/ft²
- Tc6 815· 232,248 sq ft · score 85 (A)
- Warner Center Plaza 5· 232,242 sq ft · score 78 (B)
- 352 Oyster Point - Kilroy Oyster Point Phase 1· 232,215 sq ft · score 22 (D)
- Encino Plaza· 231,893 sq ft · score 96 (A)
- 4500 Park Granada· 231,746 sq ft · score 82 (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 Santa Clara Tower Ii's energy grade?
Santa Clara Tower Ii scores 97 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 Santa Clara Tower Ii use?
Its 2024 site energy-use intensity was 25.1 kBtu/ft² across 232,730 sq ft, including 1,272,837 kWh of electricity and 13,393 therms of natural gas.
What are Santa Clara Tower Ii's carbon emissions?
Santa Clara Tower Ii reported 359 tCO₂e of greenhouse-gas emissions (1.5 kgCO₂e/ft²) for 2024.
Where is Santa Clara Tower Ii?
Santa Clara Tower Ii is at 3965 Freedom Circle, Santa Clara, in Santa Clara, California 95054. Its coordinates are 37.38582, -121.97304 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Santa Clara Tower Ii and when was it built?
Santa Clara Tower Ii has 232,730 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1998 as its year built. It is classed as office.
Is Santa Clara Tower Ii 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Santa Clara Tower Ii, Santa Clara, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/santa-clara-tower-ii-7cb2c561 (data as of July 9, 2026).