Blog · October 14, 2026 · Illinois
Using the Aurora Plat Map
A recorded plat shows how land near Oswego was divided into lots.
Main page: Kendall County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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If a legal description for land in Aurora cites a lot number, the Aurora plat map is where those numbers come from. In this Aurora guide: where to request a copy, plat versus tax map, and the details that matter to buyers.
Tracking down the Aurora plat map
For a lot in Aurora, the deed usually cites the plat; bring that to the recorder's office or its online index.
Opening the official parcel viewer
Your first stop is the Kendall County parcel viewer; it includes every assessed parcel in the county, Plainfield included. Around Yorkville, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Montgomery, a pop-up or side panel normally shows the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
How land is described here
Illinois uses the Public Land Survey System, so rural legal descriptions near Montgomery cite section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though real sections near Plattville vary in size. Write down the legal description for the tract near Oswego before you request a deed or survey.
A word on accuracy
The acreage figure is an assessed number; just a licensed surveyor can set the real boundary for a parcel near Plano. Owner names and values update on a schedule, so a recent sale near Yorkville may not show yet.
When there's no plat
Acreage around Plano outside a subdivision is often described by metes and bounds or survey description; the deed and any recorded survey describe it instead.
City limits and county records
Aurora is part of Kendall County, Illinois, and the county assessor maps its lots. On ground around Plattville, city or town hall handles things like zoning, permits and utilities within town limits, while the county keeps the tax map. Lots just outside the town limits toward Yorkville generally answers to county rules instead.
The paper trail behind a parcel
The map is an index, not the title: recorded deeds, plats and easements for land near Plainfield are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder). Inherited tracts around Plano may trace back through many deeds, and a title company earns its fee on a real sale.
Replats and vacations
An amended plat may change lots around Yorkville, so check for later filings; vacated streets or alleys also get recorded.
Taking the map into the field
Most viewers work in a phone browser, useful out on a road near Oswego, but coverage can be spotty out of town. A printout of the tract near Plano is a good backup.
Recorded plat or GIS layer
When the two disagree for a lot near Yorkville, trust the recorded documents over the GIS layer.
Lots, blocks and easements
Easements on the plat near Plano limit where you can build or fence; read the notes on the sheet.
Places you'll see on the map
Yorkville is the county seat, home to the main records offices. You'll also find Montgomery, Oswego, and Plainfield, where town lots give way to larger tracts. Around 139,976 people call Kendall County home (Census Bureau estimate, 2023) on some 320 square miles. Kendall County dates to 1841, and some chains of title near Plainfield are long.
Requesting the plat
For acreage around Plattville, some counties put plat images online, otherwise call or visit with the reference; small fees are common.
Which office to call
Anything recorded against property around Plano sit in the index kept by the county Recorder of Deeds (in many counties the County Clerk and Recorder), usually searchable by name or document number. Questions about what you can build around Oswego are for the local planning and health departments, town or county, depending on location.
Neighboring parcel maps
Kendall County meets DeKalb County, DuPage County, Grundy County, Kane County, and LaSalle County, all with their own assessor records. A tract near the line by Yorkville can be split across two assessors' files, so open the adjacent map too. If the land is near Plainfield, our state page links every neighboring county map across Illinois.
Aurora: common questions
Can lots near Oswego be combined?
Good question; combining or splitting lots near Yorkville usually needs a recorded plat change.
Who has recorded plats for land near Oswego?
It depends, but copies come from the county Recorder of Deeds (in many counties the County Clerk and Recorder), often through an online index.
Are old plats online in Aurora?
Generally, the county Recorder of Deeds (in many counties the County Clerk and Recorder) can say what's available, including older subdivisions.
Is a plat map a survey in Aurora?
The plat near Montgomery is recorded, while the GIS layer is an approximation; trust the plat when they differ.
Does the parcel map work on a phone near Plattville?
The map near Yorkville usually works on a phone; screenshots help offline.
Open the official Kendall County, IL parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.