1625 Charleston Rd
Office in California, CA · 1625 Charleston Road, Mountain View · 94043
At a glance
1625 Charleston Rd is a 67,000-square-foot office building at 1625 Charleston Road, Mountain View in Mountain View, California, built in 1987. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 70.7 kBtu/ft² and 305 tCO₂e of greenhouse-gas emissions. That score is higher than 41% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 70.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 305 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 956,143 kWh |
| Natural gas | 15,255 therms |
| Gross floor area | 67,000 sq ft |
| Source record | california:12867428:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 79 | -9 | 70.7 kBtu/ft² | 305 tCO₂e |
| 2021 | 88 | +2 | 54.7 kBtu/ft² | 219 tCO₂e |
| 2020 | 86 | +39 | 59.1 kBtu/ft² | 251 tCO₂e |
| 2019 | 47 | — | 311 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
- 1625 Charleston Road, Mountain View
- City
- California
- State
- California
- ZIP
- 94043
- Coordinates
- 37.42007, -122.08372
Within ~1 km
Nearby benchmarked buildings
- Us-Mtv-Cescore 91
Office · 1,028,295 sq ft
- Us-Mtv-40/41/42/43score —
Office · 627,553 sq ft
- Us-Mtv-1Ampscore —
Parking · 573,469 sq ft
- Us-Mtv-43score 83
Office · 410,900 sq ft
- Us-Mtv-1900/1950/2000score —
Office · 378,990 sq ft
- Us-Mtv-40score 46
Office · 290,294 sq ft
See also: most efficient in California · biggest emitters
How does 1625 Charleston Rd compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 1625 Charleston Rd's ENERGY STAR score of 79 compares with an average of 75 across the 4,912 that report a score; it scores higher than 41% of them and lower than 58%. Its site EUI of 70.7 kBtu/ft² is about 25% 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 4.5 kgCO₂e/ft² is about 25% above the group average of 3.6 kgCO₂e/ft².
At 67,000 sq ft, it is about 56% below the average floor area of 151,937 sq ft for those buildings. Its 1987 construction date is close to 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 1625 Charleston Rd's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 1625 Charleston Rd, covering report years 2019–2022. Its ENERGY STAR score went from 47 in 2019 to 79 in 2022 (+32 points); its best year on file was 2021, at 88. Site EUI moved from 59.1 kBtu/ft² (2020) to 70.7 kBtu/ft² (2022), an 20% increase. Reported emissions went from 311 tCO₂e to 305 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). 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. 1625 Charleston Rd's 70.7 kBtu/ft² across 67,000 sq ft works out to about 4.7 billion Btu (1,388 MWh-equivalent) in 2022. The disclosure also reports 956,143 kWh of electricity and 15,255 therms of natural gas for the year.
Which law requires 1625 Charleston Rd to report its energy use?
1625 Charleston Rd 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 2022 disclosure (source record california:12867428:2022). 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
- B-4· 66,972 sq ft · score 78 (B)
- Building A, 1801 S. Atlantic Blvd., Monterey Park· 66,952 sq ft · score 1 (D)
- 9975 Toledo· 66,950 sq ft · score 67 (C)
- Clearview Business Park B· 66,945 sq ft · EUI 4.7 kBtu/ft²
- District Administration Offices· 66,907 sq ft · EUI 51.1 kBtu/ft²
- 120 Stony Point Road· 66,879 sq ft · score 98 (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 1625 Charleston Rd's energy grade?
1625 Charleston Rd scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1625 Charleston Rd use?
Its 2022 site energy-use intensity was 70.7 kBtu/ft² across 67,000 sq ft, including 956,143 kWh of electricity and 15,255 therms of natural gas.
What are 1625 Charleston Rd's carbon emissions?
1625 Charleston Rd reported 305 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2022.
Where is 1625 Charleston Rd?
1625 Charleston Rd is at 1625 Charleston Road, Mountain View, in Mountain View, California 94043. Its coordinates are 37.42007, -122.08372 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 1625 Charleston Rd and when was it built?
1625 Charleston Rd has 67,000 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1987 as its year built. It is classed as office.
Is 1625 Charleston Rd covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “1625 Charleston Rd, Mountain View, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/1625-charleston-rd-6177aed8 (data as of July 9, 2026).