BuildingCensus
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660 Angel Island Sp

Other in California, CA · Angel Island State Park, Tiburon · 94920

At a glance

660 Angel Island Sp is a 629,549-square-foot other building at Angel Island State Park, Tiburon in Tiburon, California, built in 1892. In its 2022 California benchmarking disclosure it reported a site energy-use intensity of 0.5 kBtu/ft² and 24 tCO₂e of greenhouse-gas emissions.

ENERGY STAR score
—
not reported · 2022
Site EUI
0.5
kBtu/ft²
GHG emissions
24
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
629,549
sq ft
Year built
1892
vintage
◆ Loading map…
85–10070–8455–691–54
Location

AB 802 (Public Resources Code §25402.10) · reporting year 2022

Benchmarking record

FieldValue
ENERGY STAR score—
Site EUI0.5 kBtu/ft²
Source EUI—
GHG emissions24 tCO₂e
GHG intensity—
Electricity99,860 kWh
Gross floor area629,549 sq ft
Source recordcalifornia:1383433:2022

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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

Own or manage this building? Claim it to correct the record and get compliance alerts.

Location

Address
Angel Island State Park, Tiburon
State
California
ZIP
94920
Coordinates
37.86585, -122.43487

Within ~1 km

Nearby benchmarked buildings

No other benchmarked buildings within ~1 km.

See also: most efficient in California · biggest emitters

How does 660 Angel Island Sp compare with other other buildings in California?

The latest disclosures cover 773 other buildings in California, out of 40,029 buildings citywide. Its site EUI of 0.5 kBtu/ft² is about 99% below the average of 58.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 629,549 sq ft, it is about 23% above the average floor area of 511,890 sq ft for those buildings. It was built in 1892, 81 years earlier than the group's average year built (1973). Across all 24 jurisdictions BuildingCensus covers, the 1,327 other buildings average an ENERGY STAR score of 60 and a site EUI of 63.3 kBtu/ft².

What does a site EUI of 0.5 kBtu/ft² mean?

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. 660 Angel Island Sp's 0.5 kBtu/ft² across 629,549 sq ft works out to about 0.3 billion Btu (92 MWh-equivalent) in 2022. The disclosure also reports 99,860 kWh of electricity for the year.

Which law requires 660 Angel Island Sp to report its energy use?

660 Angel Island Sp 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:1383433:2022). 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 other buildings in California

Frequently asked questions

What is 660 Angel Island Sp's energy grade?

660 Angel Island Sp did not report an ENERGY STAR score in its 2022 disclosure, but its site energy-use intensity was 0.5 kBtu/ft².

How much energy does 660 Angel Island Sp use?

Its 2022 site energy-use intensity was 0.5 kBtu/ft² across 629,549 sq ft, including 99,860 kWh of electricity.

What are 660 Angel Island Sp's carbon emissions?

660 Angel Island Sp reported 24 tCO₂e of greenhouse-gas emissions for 2022.

Where is 660 Angel Island Sp?

660 Angel Island Sp is at Angel Island State Park, Tiburon, in Tiburon, California 94920. Its coordinates are 37.86585, -122.43487 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.

How big is 660 Angel Island Sp and when was it built?

660 Angel Island Sp has 629,549 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1892 as its year built. It is classed as other.

Is 660 Angel Island Sp 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, “660 Angel Island Sp, Tiburon, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/660-angel-island-sp-fc1b7568 (data as of July 9, 2026).