Blog · October 14, 2026 · Missouri
Ladue Plat Map: finding the recorded plat
Lots in Ladue 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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If a legal description for land in Ladue cites a lot number, you'll need the Ladue plat map to make sense of it. What this Ladue guide covers: where to request a copy, how a plat differs from a parcel map, and the details that matter to buyers.
The Ladue plat map: start here
For a subdivision near Olivette, look for the plat book reference on the parcel record; use it to request a copy.
The viewer St. Louis County publishes
Go first to the St. Louis County ArcGIS parcel map; it covers each tax parcel from Brentwood to Warson Woods. For property near Frontenac, type a street address, an owner's name or a parcel number, then pick the result to center the map on it. If you're looking near Olivette, the parcel card usually lists the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
Ladue and the county around it
Ladue lies within St. Louis County, Missouri, which means parcel data comes from the county. Closer to Olivette, city or town hall handles matters such as zoning, permits and utilities within town limits, while the county keeps the tax map. Acreage past the town limits out by Warson Woods usually answers to county rules instead.
Metes and bounds instead
Rural land near Warson Woods that was never subdivided may have no plat at all; the deed and any recorded survey describe it instead.
Backing up the map with records
The map is an index, not the title: recorded deeds, plats and easements for land near Warson Woods are kept by the Recorder of Deeds. If you're looking near Olivette, have ready the book and page from the tax record and the lookup takes minutes.
Before you lean on the lines
Acreage on the record is a tax-roll number; only a licensed surveyor can set the real corners for a parcel near Brentwood. For a home near Brentwood, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Plat map vs. parcel map
Where lines don't match in Ladue, the recorded plat and a survey control.
Getting your bearings
Clayton is the county seat, home to the main records offices. You'll also find Frontenac, Huntleigh, Warson Woods, and Rock Hill, each with its own cluster of lots. Roughly 987,059 people live in St. Louis County (Census estimate, 2023) on some 508 square miles. St. Louis County was organized in 1812, and some chains of title near Huntleigh are long. Features like Spanish Lake Park and Babler State Park make handy reference points on the map near Olivette.
Sections, lots and bearings
Missouri is laid out under the Public Land Survey System, so deeds around Olivette reference sections and townships. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near Rock Hill odd-sized. Copy the legal description from the record for the parcel near Huntleigh when you talk to a surveyor.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Rock Hill, though signal can drop in rural spots. A saved image of the lot near Frontenac and its lines helps when you meet an owner or agent.
Reading the plat sheet
Easements on the plat near Warson Woods stay with the land when it sells; check the plat notes and any covenants.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Warson Woods come from the Recorder of Deeds, sometimes only in person. Zoning, permits and septic questions near Huntleigh need the planning or permitting office, town or county, depending on location.
Replats and vacations
An amended plat may change lots around Rock Hill, so check for later filings; vacated streets or alleys also get recorded.
Getting a copy
In and around Warson Woods, some counties put plat images online, while others require a visit or a request; copy fees are usually small.
When a parcel crosses a boundary
St. Louis County borders Madison County, IL, Monroe County, IL, St. Clair County, IL, Franklin County, and Jefferson County, and each of those keeps its own parcel map. Ground near Olivette that runs to the line may be split in two county records, so open the adjacent map too. Near Frontenac, the Platbookmapper state page lists each bordering county map for Missouri.
Questions about the Ladue plat map
What is a replat near Olivette?
For most people, lot splits in Ladue go through the planning office; ask staff about the process.
Are old plats online near Rock Hill?
For a parcel near Warson Woods, it varies; some offices have scanned older plats and some haven't, including older subdivisions.
What is a lot and block description near Warson Woods?
In and around Frontenac, lot and block refer to a numbered lot within a block on a recorded subdivision plat, so pull that plat for dimensions.
Can I build on an easement in Ladue?
Short answer: building on an easement near Rock Hill is generally restricted; read the plat notes.
Where is the legal description for land near Brentwood?
On ground around Rock Hill, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
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.