BuildingCensus
D

Diamond Bar City Hall

Office in California, CA · 21810 Copley Drive, Diamond Bar · 91765

ENERGY STAR score
50
band D · 2024
Site EUI
55.5
kBtu/ft²
GHG emissions
197
tCO₂e
GHG intensity
3.6
kgCO₂e/ft²
Floor area
55,095
sq ft
Year built
1999
vintage
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85–10070–8455–691–54
This entry + 6 nearby

AB 802 (Public Resources Code §25402.10) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score50 (band D)
Site EUI55.5 kBtu/ft²
Source EUI
GHG emissions197 tCO₂e
GHG intensity3.6 kgCO₂e/ft²
Electricity778,538 kWh
Natural gas3,974 therms
Gross floor area55,095 sq ft
Source recordcalifornia:34663422:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest50-455.5 kBtu/ft²197 tCO₂e
20235452.2 kBtu/ft²199 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.

Program details →

Ownership

No owner listed in the disclosure.

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Location

Address
21810 Copley Drive, Diamond Bar
State
California
ZIP
91765
Coordinates
33.99919, -117.83079

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in California · biggest emitters

Frequently asked questions

What is Diamond Bar City Hall's energy grade?

Diamond Bar City Hall 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 Diamond Bar City Hall use?

Its 2024 site energy-use intensity was 55.5 kBtu/ft² across 55,095 sq ft, including 778,538 kWh of electricity and 3,974 therms of natural gas.

What are Diamond Bar City Hall's carbon emissions?

Diamond Bar City Hall reported 197 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 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.

Dataset updated . Source: Building Energy Benchmarking Program (statewide) disclosure, record california:34663422:2024.