Property record

21660 Copley Drive, Diamond Bar

Office in Diamond Bar, California. It covers 17,128 square feet on the ground.

This building

21660 Copley Drive, Diamond Bar. Office in Diamond Bar, California. Property ID sptcptkmw5wzqv9.

Facts about 21660 Copley Drive, Diamond Bar
Fact	Value	Source
Address	21660 Copley Drive, Diamond Bar, CA 91765	Overture Maps addresses
Building type	Office	USA Structures and SkyPSI estimator
Place name	Chia-wen Hsieh, Psyd	Overture Maps places
Place type	psychologist	Overture Maps places
Footprint	17,128 square feet	USA Structures
Perimeter	572.89 feet	USA Structures
Height	40.19 feet	USA Structures
Stories	3 stories	USA Structures
Exterior wall area	23,024 square feet	SkyPSI estimator

Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. What the grades mean.

Exterior soft wash from a boom lift, whole building
Service	Low	Most likely	High
Facade wash, conventional access	$3,500	$6,500	$11,000

Each fact names the source it comes from. A building file carries the source of each field, and SkyPSI shows that source beside the fact.

USA Structures: Building footprints, heights and occupancy from FEMA's USA Structures.
Overture Maps addresses: Street addresses from the Overture Maps addresses theme.
Overture Maps places: Business and place names from the Overture Maps places theme.
SkyPSI estimator: SkyPSI's own price model, calibrated rates and building-class rules.

Cost ranges come from the SkyPSI estimator, calibrated October 2, 2026. How a SkyEstimate is built.

Ask SkyPSI for a quote on your building.

Sources: USA Structures, Overture Maps addresses, Overture Maps places, SkyPSI estimator.

An estimate, not a quote. How a SkyEstimate is built.