Harbor Bay Nla Llc-1431 Harbor Bay Parkway
Office in California, CA · 1431 Harbor Bay Parkway, Alameda · 94502
At a glance
Harbor Bay Nla Llc-1431 Harbor Bay Parkway is a 68,711-square-foot office building at 1431 Harbor Bay Parkway, Alameda in Alameda, California, built in 1985. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 64.8 kBtu/ft² and 261 tCO₂e of greenhouse-gas emissions. That score is higher than 25% 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 | 64 (band C) |
| Site EUI | 64.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 261 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 535,271 kWh |
| Natural gas | 26,273 therms |
| Gross floor area | 68,711 sq ft |
| Source record | california:3603295:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | -31 | 64.8 kBtu/ft² | 261 tCO₂e |
| 2023 | 95 | +72 | 24.0 kBtu/ft² | 108 tCO₂e |
| 2020 | 23 | 71.8 kBtu/ft² | 327 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
- 1431 Harbor Bay Parkway, Alameda
- City
- California
- State
- California
- ZIP
- 94502
- Coordinates
- 37.72694, -122.23736
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
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- 1320 Harbor Bayscore 50
Office · 124,061 sq ft
- 1420 South Loop Llcscore 99
Office · 121,216 sq ft
Office · 118,847 sq ft
See also: most efficient in California · biggest emitters
How does Harbor Bay Nla Llc-1431 Harbor Bay Parkway compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Harbor Bay Nla Llc-1431 Harbor Bay Parkway's ENERGY STAR score of 64 compares with an average of 75 across the 4,912 that report a score; it scores higher than 25% of them and lower than 75%. Its site EUI of 64.8 kBtu/ft² is about 15% 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 3.8 kgCO₂e/ft² is roughly in line with the group average of 3.6 kgCO₂e/ft².
At 68,711 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. Its 1985 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 Harbor Bay Nla Llc-1431 Harbor Bay Parkway's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Harbor Bay Nla Llc-1431 Harbor Bay Parkway, covering report years 2020, 2023, 2024. Its ENERGY STAR score went from 23 in 2020 to 64 in 2024 (+41 points); its best year on file was 2023, at 95. Site EUI moved from 71.8 kBtu/ft² (2020) to 64.8 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 327 tCO₂e to 261 tCO₂e over the same span (down 20%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. Harbor Bay Nla Llc-1431 Harbor Bay Parkway's 64.8 kBtu/ft² across 68,711 sq ft works out to about 4.5 billion Btu (1,305 MWh-equivalent) in 2024. The disclosure also reports 535,271 kWh of electricity and 26,273 therms of natural gas for the year.
Which law requires Harbor Bay Nla Llc-1431 Harbor Bay Parkway to report its energy use?
Harbor Bay Nla Llc-1431 Harbor Bay Parkway 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:3603295:2024). 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
- 13931 Balboa Blvd, Sylmar, Ca 91342· 68,670 sq ft · score 98 (A)
- 111 Pacifica· 68,644 sq ft · score 69 (C)
- 300 Grant· 68,644 sq ft · score 99 (A)
- 29851 Agoura Road· 68,632 sq ft · score 77 (B)
- 1237 E Arques Ave· 68,608 sq ft · score 17 (D)
- 2300 Harrison Street· 68,538 sq ft · score 93 (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 Harbor Bay Nla Llc-1431 Harbor Bay Parkway's energy grade?
Harbor Bay Nla Llc-1431 Harbor Bay Parkway scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Harbor Bay Nla Llc-1431 Harbor Bay Parkway use?
Its 2024 site energy-use intensity was 64.8 kBtu/ft² across 68,711 sq ft, including 535,271 kWh of electricity and 26,273 therms of natural gas.
What are Harbor Bay Nla Llc-1431 Harbor Bay Parkway's carbon emissions?
Harbor Bay Nla Llc-1431 Harbor Bay Parkway reported 261 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is Harbor Bay Nla Llc-1431 Harbor Bay Parkway?
Harbor Bay Nla Llc-1431 Harbor Bay Parkway is at 1431 Harbor Bay Parkway, Alameda, in Alameda, California 94502. Its coordinates are 37.72694, -122.23736 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Harbor Bay Nla Llc-1431 Harbor Bay Parkway and when was it built?
Harbor Bay Nla Llc-1431 Harbor Bay Parkway has 68,711 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1985 as its year built. It is classed as office.
Is Harbor Bay Nla Llc-1431 Harbor Bay Parkway 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, “Harbor Bay Nla Llc-1431 Harbor Bay Parkway, Alameda, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/harbor-bay-nla-llc-1431-harbor-bay-parkway-69d56be6 (data as of July 9, 2026).