2999 Oak Road
Office in California, CA · 2999 Oak Road, Walnut Creek · 94597
At a glance
2999 Oak Road is a 207,827-square-foot office building at 2999 Oak Road, Walnut Creek in Walnut Creek, California, built in 1991. 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 37.3 kBtu/ft² and 485 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 | 37.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 485 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 1,597,056 kWh |
| Natural gas | 23,254 therms |
| Gross floor area | 207,827 sq ft |
| Source record | california:5693478:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 97 | ±0 | 37.3 kBtu/ft² | 485 tCO₂e |
| 2023 | 97 | +2 | 35.9 kBtu/ft² | 494 tCO₂e |
| 2022 | 95 | -1 | 37.9 kBtu/ft² | 509 tCO₂e |
| 2021 | 96 | +1 | 39.9 kBtu/ft² | 444 tCO₂e |
| 2020 | 95 | ±0 | 46.7 kBtu/ft² | 522 tCO₂e |
| 2019 | 95 | +2 | 46.5 kBtu/ft² | 590 tCO₂e |
| 2018 | 93 | 46.6 kBtu/ft² | 606 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
- 2999 Oak Road, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94597
- Coordinates
- 37.92792, -122.05778
Within ~1 km
Nearby benchmarked buildings
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- Ca504_Eaves Walnut Creek (Rc31)score 94
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- Hanover Walnut Creekscore —
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- Pacific Plazascore 95
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See also: most efficient in California · biggest emitters
How does 2999 Oak Road compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 2999 Oak Road'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 37.3 kBtu/ft² is about 34% 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 2.3 kgCO₂e/ft² is about 35% below the group average of 3.6 kgCO₂e/ft².
At 207,827 sq ft, it is about 37% above the average floor area of 151,937 sq ft for those buildings. It was built in 1991, 6 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 2999 Oak Road's energy performance changed over time?
BuildingCensus holds 7 California disclosures for 2999 Oak Road, covering report years 2018–2024. Its ENERGY STAR score went from 93 in 2018 to 97 in 2024 (+4 points); its best year on file was 2023, at 97. Site EUI moved from 46.6 kBtu/ft² (2018) to 37.3 kBtu/ft² (2024), a 20% decrease. Reported emissions went from 606 tCO₂e to 485 tCO₂e over the same span (down 20%).
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. 2999 Oak Road's 37.3 kBtu/ft² across 207,827 sq ft works out to about 7.8 billion Btu (2,272 MWh-equivalent) in 2024. The disclosure also reports 1,597,056 kWh of electricity and 23,254 therms of natural gas for the year.
Which law requires 2999 Oak Road to report its energy use?
2999 Oak Road 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:5693478:2024). 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
- Ocean Plaza - Office Tower· 207,645 sq ft · score 96 (A)
- Media Studios North - Phase 4 (3333 Empire Avenue)· 207,407 sq ft · score 82 (B)
- South Bay Centre· 207,401 sq ft · score 88 (A)
- Ecoc Admin Bldg - 4401 Bradshaw Road· 207,125 sq ft · score 82 (B)
- 251 S. Lake· 207,082 sq ft · score 85 (A)
- Tower Plaza· 206,851 sq ft · score 51 (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 2999 Oak Road's energy grade?
2999 Oak Road 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 2999 Oak Road use?
Its 2024 site energy-use intensity was 37.3 kBtu/ft² across 207,827 sq ft, including 1,597,056 kWh of electricity and 23,254 therms of natural gas.
What are 2999 Oak Road's carbon emissions?
2999 Oak Road reported 485 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2024.
Where is 2999 Oak Road?
2999 Oak Road is at 2999 Oak Road, Walnut Creek, in Walnut Creek, California 94597. Its coordinates are 37.92792, -122.05778 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 2999 Oak Road and when was it built?
2999 Oak Road has 207,827 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1991 as its year built. It is classed as office.
Is 2999 Oak Road 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, “2999 Oak Road, Walnut Creek, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/2999-oak-road-60cdb9f4 (data as of July 9, 2026).