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Licensed Illinois land surveyors delivering sealed plats of survey for closings, fences, permits and boundary questions across Thornton and Cook County.
Licensed Illinois land surveyors · Sealed plats for closings, permits & boundary disputes
Home › Services › Residential Boundary Surveys › Thornton, IL
Thornton is a historic south-suburban village of roughly 2,400 residents, coextensive with Thornton Township and known for its long-standing quarry. Its older lots and varied terrain make a plat of survey a practical tool for confirming boundaries before building.
A plat of survey is a drawing, signed and sealed by a licensed Illinois land surveyor, that locates the corners and boundary lines of your lot and depicts the buildings, driveways, fences and recorded easements on the property. It is the document lenders, title companies and municipal permit desks rely on.
The Pi Surveying process — clear, sealed, and ready for your closing or permit.
Thornton, home to about 2,400 residents within its own Thornton Township, sits in the south suburbs of Cook County near the large Thornton quarry. Its plats of survey and deeds are recorded through the Cook County Clerk’s Recordings Division, which replaced the Recorder of Deeds office in December 2020. The village’s older lots carry decades of fence, garage, and addition work, so a survey frequently clarifies encroachments and easements an aging plat may miss. Low-lying parcels near area drainage in the Calumet system should be reviewed against FEMA flood-hazard mapping in the MWRD-managed watershed.
Official resources for Thornton property owners
Common reasons are a property sale, a fence or addition permit, or a boundary question with a neighbor.
It resolves where lines run relative to fences, garages, and additions, which is essential for permits and sales.
They are recorded with the Cook County Clerk’s Recordings Division in Chicago.
Beyond a plat of survey, Pi Surveying provides the full range of land surveying services for Thornton property owners and builders:
We also prepare sealed plats of survey across nearby Cook County communities:
Get started on your next project with Pi Surveying’s expert land surveying services. Contact us today to schedule your survey and get accurate and reliable results.
Send us your property address and a licensed Illinois land surveyor will prepare a quote for your project.
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.