1320 Harbor Bay
Office in California, CA · 1320 Harbor Bay Parkway, Alameda · 94502
At a glance
1320 Harbor Bay is a 124,061-square-foot office building at 1320 Harbor Bay Parkway, Alameda in Alameda, California, built in 1986. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 93.9 kBtu/ft² and 685 tCO₂e of greenhouse-gas emissions. That score is higher than 16% 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 | 50 (band D) |
| Site EUI | 93.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 685 tCO₂e |
| GHG intensity | 5.5 kgCO₂e/ft² |
| Electricity | 1,357,545 kWh |
| Natural gas | 71,152 therms |
| Gross floor area | 124,061 sq ft |
| Source record | california:33910293:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 50 | -25 | 93.9 kBtu/ft² | 685 tCO₂e |
| 2023 | 75 | 57.8 kBtu/ft² | 449 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
- 1320 Harbor Bay Parkway, Alameda
- City
- California
- State
- California
- ZIP
- 94502
- Coordinates
- 37.72415, -122.23658
Within ~1 km
Nearby benchmarked buildings
Office · 220,517 sq ft
- 1310 Harbor Bay (Penumbra)score 92
Office · 129,129 sq ft
- 1650 Harbor Bay Parkwayscore 55
Office · 125,205 sq ft
- 1420 South Loop Llcscore 99
Office · 121,216 sq ft
Office · 118,847 sq ft
Office · 118,125 sq ft
See also: most efficient in California · biggest emitters
How does 1320 Harbor Bay compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 1320 Harbor Bay's ENERGY STAR score of 50 compares with an average of 75 across the 4,912 that report a score; it scores higher than 16% of them and lower than 84%. Its site EUI of 93.9 kBtu/ft² is about 66% 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 5.5 kgCO₂e/ft² is about 53% above the group average of 3.6 kgCO₂e/ft².
At 124,061 sq ft, it is about 18% below the average floor area of 151,937 sq ft for those buildings. Its 1986 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 1320 Harbor Bay's energy performance changed over time?
BuildingCensus holds 2 California disclosures for 1320 Harbor Bay, covering report years 2023–2024. Its ENERGY STAR score went from 75 in 2023 to 50 in 2024 (-25 points); its best year on file was 2023, at 75. Site EUI moved from 57.8 kBtu/ft² (2023) to 93.9 kBtu/ft² (2024), an 62% increase. Reported emissions went from 449 tCO₂e to 685 tCO₂e over the same span (up 53%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 points below 75, the threshold for ENERGY STAR certification. 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. 1320 Harbor Bay's 93.9 kBtu/ft² across 124,061 sq ft works out to about 11.6 billion Btu (3,414 MWh-equivalent) in 2024. The disclosure also reports 1,357,545 kWh of electricity and 71,152 therms of natural gas for the year.
Which law requires 1320 Harbor Bay to report its energy use?
1320 Harbor Bay 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:33910293:2024). 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
- Taft Building· 124,056 sq ft · score 91 (A)
- Craft· 124,006 sq ft · score 99 (A)
- 18 Technology· 124,004 sq ft · score 80 (B)
- Stanford - Srp 925· 124,000 sq ft · score 1 (D)
- Monrovia Technology Campus· 123,986 sq ft · score 87 (A)
- Snd - San Diego 15 (Snd15)· 123,881 sq ft · EUI 135.3 kBtu/ft²
- 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 1320 Harbor Bay's energy grade?
1320 Harbor Bay scores 50 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1320 Harbor Bay use?
Its 2024 site energy-use intensity was 93.9 kBtu/ft² across 124,061 sq ft, including 1,357,545 kWh of electricity and 71,152 therms of natural gas.
What are 1320 Harbor Bay's carbon emissions?
1320 Harbor Bay reported 685 tCO₂e of greenhouse-gas emissions (5.5 kgCO₂e/ft²) for 2024.
Where is 1320 Harbor Bay?
1320 Harbor Bay is at 1320 Harbor Bay Parkway, Alameda, in Alameda, California 94502. Its coordinates are 37.72415, -122.23658 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 1320 Harbor Bay and when was it built?
1320 Harbor Bay has 124,061 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is 1320 Harbor Bay 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, “1320 Harbor Bay, Alameda, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/1320-harbor-bay-0ddf6971 (data as of July 9, 2026).