Blog · October 14, 2026 · Missouri
Using the Wildwood Plat Map
Lots in Wildwood trace back to recorded plats filed with the county.
Main page: St. Louis County, MO GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a deed near Ellisville says lot and block, you'll need the Wildwood plat map to make sense of it. In this Wildwood guide: where plats are filed, how a plat differs from a parcel map, and what to look for on the sheet.
The Wildwood plat map: start here
For a subdivision near Winchester, the deed or parcel record often names the subdivision and plat reference; use it to request a copy.
Pulling up a parcel
Go first to the St. Louis County ArcGIS parcel map; it covers every assessed parcel around Chesterfield and Ballwin. Out toward Ellisville, type a street address, an owner's name or a parcel number, and the matching parcel lights up. Out toward Winchester, write down the parcel ID from that panel; every records desk in the county uses it to find the file.
Reading the legal description
Missouri uses the Public Land Survey System, so rural legal descriptions near Ballwin cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Ellisville can be irregular. Copy the legal description from the record for the parcel near Chesterfield for any title or survey request.
Next door to St. Louis County
St. Louis County touches Madison County, IL, Monroe County, IL, St. Clair County, IL, Franklin County, and Jefferson County; every one of them runs a separate parcel map. Ground near Eureka that runs to the line may be split across two assessors' files, so look at the adjacent map as well. For a parcel near Ellisville, the Platbookmapper state page lists every neighboring county map for Missouri.
Who handles what
Questions about value or the owner field for land near Eureka are handled by the County Assessor, since that office keeps the assessment data. Building or septic questions for a lot near Eureka need the planning or permitting office, depending on whether the land is inside town limits.
Where Wildwood fits in
Wildwood is part of St. Louis County, Missouri, so its parcels are on the county's map. For a home near Clarkson Valley, the municipality handles matters such as zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Land beyond the town limits toward Chesterfield usually answers to county rules instead.
Recorded plat or GIS layer
The tax map on the St. Louis County ArcGIS parcel map is a summary, while the recorded plat is the legal document.
The paper trail behind a parcel
The map is an index, not the title: recorded deeds, plats and easements for land near Eureka sit with the Recorder of Deeds. Long-held tracts around Winchester may trace back through a long string of deeds, and a title company can sort it out on a real sale.
Using it on a phone
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Ellisville, but coverage can be spotty out of town. A printout of the tract near Eureka keeps working without signal.
Details on the Wildwood plat map
Easements on the plat near Ballwin limit where you can build or fence; read the notes on the sheet.
A word on accuracy
The acreage figure is an assessed number; just a licensed surveyor can set the real lines on land around Eureka. In and around Ellisville, owner names and values update on a schedule, so a deed recorded last month may not show yet.
When a plat changes
Lots near Eureka can be combined or reconfigured by a replat, search the index for replats of the same subdivision; vacated streets or alleys also get recorded.
Ordering the Wildwood plat map
The Recorder of Deeds may have searchable images, while others require a visit or a request; small fees are common.
St. Louis County in a few facts
Clayton serves as the county seat, which is where the courthouse records live. You'll also find Ellisville, Clarkson Valley, Eureka, and Ballwin, each with its own cluster of lots. Roughly 987,059 people live in St. Louis County (Census Bureau estimate, 2023) on about 508 square miles. St. Louis County dates to 1812, and some chains of title near Ballwin are long. Places such as Spanish Lake Park and Babler State Park help you orient on the aerial around Ballwin.
Metes and bounds instead
Acreage around Clarkson Valley outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
Questions about the Wildwood plat map
What is a replat near Winchester?
Short answer: combining or splitting lots near Eureka usually needs a recorded plat change.
Is a plat map a survey for land near Chesterfield?
Out toward Winchester, GIS parcels are tax drawings, and the recorded plat is the legal document; trust the plat when they differ.
Do easements show on the plat near Eureka?
It depends, but building on an easement near Ballwin is generally restricted; read the plat notes.
Where can I find the Wildwood plat map?
Good question; copies come from the Recorder of Deeds, often through an online index.
Does the parcel map work on a phone around Chesterfield?
The map near Eureka usually works on a phone; screenshots help offline.
Open the official St. Louis County, MO 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.