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 a while. So even if the property owner can locate an old plat of survey, odds are it is obsolete and they will still have to hire a private land surveyor to create an updated survey.
You can use this application, KaneGIS4 interactive web mapping application to find and view parcel data / information. Additional details regarding parcels can be found using this application, DevNet / Kane County Property Tax Inquiry. If neither of these sites is helpful you can find a link to all County Mapping applications at the Maps section of our web site.
While every attempt is made to replicate the official source of the geometry (A plat and Legal from a Surveyor) this is not always possible. Often the assessed area of a parcel and the geometry areas of the parcels represented in the GIS Layer do not match. For Assessment purposes, the area represented in the Survey is always the correct value.
Geodetic monuments are markers in the ground that can be used as reference points. Information regarding Geodetic Monuments can be found here.
Currently the County does not have an Open Data Sharing Policy. Data can be acquired via a fee with the Sidwell Company.
