Property record

40 East Graham Avenue, Hempstead

Government in Hempstead, New York. It covers 1,648 square feet on the ground.

This building

40 East Graham Avenue, Hempstead. Government in Hempstead, New York. Property ID sp8sx089b7n7y2e.

Facts about 40 East Graham Avenue, Hempstead
Fact	Value	Source
Address	40 East Graham Avenue, Hempstead, NY 11550	USA Structures
Building type	Government	USA Structures and SkyPSI estimator
Footprint	1,648 square feet	USA Structures
Perimeter	162.33 feet	USA Structures
Height	7.72 feet	Overture Maps building footprints and Google Open Buildings
Stories	1 story	Overture Maps building footprints and Google Open Buildings
Exterior wall area	1,253 square feet	SkyPSI estimator

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.
Google Open Buildings: Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme.
Overture Maps building footprints: Building outlines, heights and floor counts from the Overture Maps buildings 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, Google Open Buildings, Overture Maps building footprints, SkyPSI estimator.

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