Treat Towers - 1255
Office in California, CA · 1255 Treat Boulevard, Walnut Creek · 94597
At a glance
Treat Towers - 1255 is a 196,612-square-foot office building at 1255 Treat Boulevard, Walnut Creek in Walnut Creek, California, built in 1998. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 28.8 kBtu/ft² and 359 tCO₂e of greenhouse-gas emissions. That score is higher than 75% 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 | 94 (band A) |
| Site EUI | 28.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 359 tCO₂e |
| GHG intensity | 1.8 kgCO₂e/ft² |
| Electricity | 1,244,716 kWh |
| Natural gas | 14,590 therms |
| Gross floor area | 196,612 sq ft |
| Source record | california:2255614:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | +1 | 28.8 kBtu/ft² | 359 tCO₂e |
| 2023 | 93 | +2 | 32.1 kBtu/ft² | 416 tCO₂e |
| 2022 | 91 | +2 | 37.0 kBtu/ft² | 462 tCO₂e |
| 2021 | 89 | -1 | 38.4 kBtu/ft² | 416 tCO₂e |
| 2020 | 90 | +1 | 40.3 kBtu/ft² | 446 tCO₂e |
| 2019 | 89 | +4 | 40.5 kBtu/ft² | 491 tCO₂e |
| 2018 | 85 | 40.3 kBtu/ft² | 520 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
- 1255 Treat Boulevard, Walnut Creek
- City
- California
- State
- California
- ZIP
- 94597
- Coordinates
- 37.92774, -122.05898
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 Treat Towers - 1255 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Treat Towers - 1255's ENERGY STAR score of 94 compares with an average of 75 across the 4,912 that report a score; it scores higher than 75% of them and lower than 22%. Its site EUI of 28.8 kBtu/ft² is about half of 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 1.8 kgCO₂e/ft² is about half of the group average of 3.6 kgCO₂e/ft².
At 196,612 sq ft, it is about 29% 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 Treat Towers - 1255's energy performance changed over time?
BuildingCensus holds 7 California disclosures for Treat Towers - 1255, covering report years 2018–2024. Its ENERGY STAR score went from 85 in 2018 to 94 in 2024 (+9 points). Site EUI moved from 40.3 kBtu/ft² (2018) to 28.8 kBtu/ft² (2024), a 29% decrease. Reported emissions went from 520 tCO₂e to 359 tCO₂e over the same span (down 31%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. Treat Towers - 1255's 28.8 kBtu/ft² across 196,612 sq ft works out to about 5.7 billion Btu (1,659 MWh-equivalent) in 2024. The disclosure also reports 1,244,716 kWh of electricity and 14,590 therms of natural gas for the year.
Which law requires Treat Towers - 1255 to report its energy use?
Treat Towers - 1255 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:2255614:2024). 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
- 1300 Clay· 196,604 sq ft · score 89 (A)
- 6904 Tujunga· 196,547 sq ft · score 94 (A)
- 1650 Mission St· 196,536 sq ft · score 94 (A)
- 5500-5550 Hellyer· 196,534 sq ft · score 84 (B)
- 475 14Th Street· 196,484 sq ft · score 82 (B)
- 12830 El Camino Real - One Paseo (Building I)· 196,444 sq ft · score 91 (A)
- 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 Treat Towers - 1255's energy grade?
Treat Towers - 1255 scores 94 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 Treat Towers - 1255 use?
Its 2024 site energy-use intensity was 28.8 kBtu/ft² across 196,612 sq ft, including 1,244,716 kWh of electricity and 14,590 therms of natural gas.
What are Treat Towers - 1255's carbon emissions?
Treat Towers - 1255 reported 359 tCO₂e of greenhouse-gas emissions (1.8 kgCO₂e/ft²) for 2024.
Where is Treat Towers - 1255?
Treat Towers - 1255 is at 1255 Treat Boulevard, Walnut Creek, in Walnut Creek, California 94597. Its coordinates are 37.92774, -122.05898 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Treat Towers - 1255 and when was it built?
Treat Towers - 1255 has 196,612 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 Treat Towers - 1255 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, “Treat Towers - 1255, Walnut Creek, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/treat-towers-1255-d943c5ed (data as of July 9, 2026).