Blog · October 14, 2026 · Missouri
Reading the Hazelwood Plat Map for a lot
Lots in Hazelwood 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 Champ says lot and block, the Hazelwood plat map is where those numbers come from. In this Hazelwood guide: where plats are filed, plat versus tax map, and what to look for on the sheet.
Getting started with the Hazelwood plat map
For a subdivision near Bridgeton, the deed usually cites the plat; that makes the request quick.
Where the parcel data lives
Your first stop is the St. Louis County ArcGIS parcel map; it includes every assessed parcel in the county, Bridgeton included. On ground around Berkeley, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. If you're looking near Edmundson, the parcel card usually lists the owner of record, assessed acreage, a parcel ID and often a sale date.
Using it on a phone
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Florissant, though signal can drop in rural spots. A saved image of the lot near Florissant and its lines keeps working without signal.
Where Hazelwood fits in
Hazelwood sits in St. Louis County, Missouri, and the county assessor maps its lots. For a parcel near Florissant, city or town hall handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Land beyond the city limits near Champ often falls under county rules rather than the town's.
Places you'll see on the map
Clayton holds the county offices, which is where the courthouse records live. Other places on the map include Bridgeton, Florissant, Edmundson, and Champ, where town lots give way to larger tracts. Around 987,059 people call St. Louis County home (Census estimate, 2023) spread over about 508 square miles. St. Louis County was formed in 1812, so old deeds can run back a long way. Features like Spanish Lake Park and Babler State Park help you orient on the aerial around St. Ann.
Recorded plat or GIS layer
If the tax map and plat differ near Champ, the recorded plat and a survey control.
Legal descriptions in Missouri
Missouri uses the Public Land Survey System, which means a tract near Edmundson is described by section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Berkeley vary in size. Keep the legal description for land near Champ before you request a deed or survey.
Which office to call
Anything recorded against property around Florissant sit in the index kept by the Recorder of Deeds, often with an online index. Questions about what you can build around Champ are for the local planning and health departments, and the answer depends on jurisdiction.
Before you lean on the lines
Listed acreage is an assessed number; only a licensed surveyor can set the real corners for a parcel near Florissant. Out toward Edmundson, records update in batches, so a deed recorded last month can take weeks to appear.
Metes and bounds instead
Rural land near St. Ann that was never subdivided may have no plat at all; look for a recorded survey for land near Bridgeton.
Next door to St. Louis County
St. Louis County meets Madison County, IL, Monroe County, IL, St. Clair County, IL, Franklin County, and Jefferson County; every one of them runs a separate parcel map. A tract near the line by Champ may show up in two county records, so open the adjacent map as well. For a parcel near Champ, the Platbookmapper state page links each bordering county map for Missouri.
Reading the plat sheet
Recorded easements around Florissant limit where you can build or fence; read the notes on the sheet.
Replats and vacations
An amended plat may change lots around Bridgeton, so check for later filings; street vacations near Florissant show up in the records too.
Recorded documents worth pulling
The map is an index, not the title: recorded deeds, plats and easements for land near Berkeley sit with the Recorder of Deeds. In and around Bridgeton, use the document number from the tax record to skip a name search.
Ordering the Hazelwood plat map
In and around Bridgeton, many recorder offices offer an online index, otherwise call or visit with the reference; small fees are common.
Hazelwood: common questions
What is a replat near Bridgeton?
Usually, combining or splitting lots near Champ usually needs a recorded plat change, often with a surveyor's drawing.
What do the dashed lines on a plat mean in Hazelwood?
For land near Berkeley, dashed lines often mark easements or building lines; read the plat notes.
Are old plats online for land near St. Ann?
Older plats near Berkeley may be on film or paper; call before you visit.
Who has recorded plats for land near Florissant?
In most cases, copies come from the Recorder of Deeds, often through an online index; use the plat reference from the deed or parcel record.
Does the parcel map work on a phone near Florissant?
No app is needed for most county viewers; load it before you lose coverage near Florissant.
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.