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Licensed Illinois land surveyors preparing FEMA Elevation Certificates for flood insurance and floodplain compliance across Westchester and Cook County.
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Home › Services › FEMA Elevation Certificates › Westchester, IL
Westchester lies in Proviso Township west of Chicago, drained by Addison Creek and the Des Plaines River system that leave lower-lying parcels inside mapped flood zones. A FEMA Elevation Certificate is the document that records a building’s floor elevation against the Base Flood Elevation for flood-insurance and permit decisions.
A FEMA Elevation Certificate documents your building’s elevation relative to the Base Flood Elevation on the FEMA flood map. Insurers use it to rate flood policies and communities use it to confirm floodplain compliance; it can also support a Letter of Map Amendment (LOMA) to remove a structure from a flood zone.
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Westchester is a west-suburban village of about 16,900 residents within Proviso Township, Cook County. Its drainage, including Addison Creek, feeds the Des Plaines River system managed by the Metropolitan Water Reclamation District (MWRD). Much of the village occupies moderately high ground, so Special Flood Hazard Areas concentrate along Addison Creek and other low-lying drainage rather than across the community. For a structure in a mapped zone, the certificate provides the surveyed elevation figures an insurer uses to rate coverage, documents compliance with Westchester’s floodplain-permit process, and forms the basis of a Letter of Map Amendment (LOMA) when a building is shown above the Base Flood Elevation.
Official resources for Westchester property owners
Addison Creek and connected drainage carry the village’s mapped floodplain, with higher-ground areas away from the creek at lower risk.
Lenders often require flood insurance for a mortgage on a structure in a mapped zone; the Elevation Certificate provides the data to rate that insurance and can be requested during underwriting.
It is the lowest enclosed floor of the building, including a basement, that the surveyor measures and compares against the Base Flood Elevation.
Pi Surveying provides the full range of land surveying services for Westchester property owners and builders:
We also serve nearby Cook County communities:
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Pi Surveying, located in Oak Brook, a suburb of Chicago, Illinois, is a professional land surveying design firm that provides land surveys for both the private and commercial sector.