The County of DuPage
Wheaton, Illinois
 

GIS Frequently Asked Questions

Where can I get a plat of survey?

A plat of survey is drawing that represents a single property that has been surveyed in the field and certified by an Illinois licensed land surveyor.
A plat of survey is usually required for a mortgage closing, refinancing, or building permit.

Most plats of surveys are held by either a property owner, a mortgage company, a government agency that issued a building permit, or the land surveyor that prepared it. Plats of survey are rarely filed with the County Recorder of Deeds.

The County sells copies of subdivision plats (in the Recorder of Deeds office) or tax assessment maps (from the County Clerk's office). Neither of these documents can be a substitute for a plat of survey.

Try the government agency that issued the building permit on the property (our Development department for unincorporated areas), their mortgage company, or as a last resort the surveyor who did the survey.

Plats of survey are like bread, they get stale after awhile. So even if the property owner can locate an old plat of survey, odds are it is obsolete and they will still have to hire a private land surveyor to create an updated survey.