Blog · October 14, 2026 · Missouri
The Hazelwood GIS Map and the county parcel viewer
Parcel data for this town comes from the county, and the viewer is free, at least around Clayton.
Main page: St. Louis County, MO GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When land near St. Ann catches your eye, a look at the Hazelwood GIS map gives you the outline, the owner of record and a parcel ID. In this Hazelwood guide: where that map lives, how to search it, and the limits worth knowing.
Getting started with the Hazelwood GIS map
In most places the county maintains the parcel layer, which makes the St. Louis County ArcGIS parcel map the main source for lots in Hazelwood.
Where the parcel data lives
Your first stop is the St. Louis County ArcGIS parcel map; it includes each assessed parcel in the county, St. Ann included. For acreage around Bridgeton, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. For acreage around Edmundson, the parcel card normally shows the owner of record, assessed acreage, a parcel ID and in many cases the last transfer.
Troubleshooting the viewer
When the map won't open around St. Ann, switch browsers or turn off pop-up blockers; links occasionally change, and our directory page keeps the current one.
Hazelwood, MO: the basics
Hazelwood is part of St. Louis County, Missouri, so its parcels are on the county's map. For acreage around Berkeley, city or town hall handles matters such as zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Land beyond the city limits near Bridgeton usually answers to county rules, not municipal ones.
A quick look at the area
Clayton is the county seat, which is where the courthouse records live. You'll also find Bridgeton, Florissant, Edmundson, and Champ, each with its own cluster of lots. Around 987,059 people live in St. Louis County (Census estimate, 2023) across some 508 square miles. St. Louis County was organized in 1812, and some chains of title near Bridgeton are long. Landmarks such as Spanish Lake Park and Babler State Park help you orient on the aerial around Edmundson.
Backing up the map with records
Before you sign anything, request the recorded deed through the Recorder of Deeds; the parcel map near Bridgeton only summarizes it. Long-held tracts near Edmundson can trace back through several deeds, and a title company is worth hiring on a real sale.
Getting answers from the right desk
Recorded documents for a parcel near Berkeley sit in the index kept by the Recorder of Deeds, usually searchable by name or document number. Zoning, permits and septic questions near St. Ann need the planning or permitting office, and the answer depends on jurisdiction.
Before you lean on the lines
Tax maps are drawn for assessment, not measured on the ground, so the edge of a yard near Bridgeton may sit a few yards off the line on screen. For property near St. Ann, records update in batches, so a deed recorded last month might lag behind.
Reading the legal description
Missouri follows the Public Land Survey System, so deeds around Florissant reference sections and townships. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near St. Ann odd-sized. Copy the legal description from the record for the parcel near Edmundson for any title or survey request.
On site with the map
Most viewers work in a phone browser, handy when you're parked on a road near Berkeley, so load it before you lose signal. A screenshot of the parcel near Florissant with its ID is a good backup.
Three ways to find a parcel
Addresses are the easiest route inside this town; for owner searches, try last name first for land near Bel-Ridge. With a lot near Champ, searching by parcel number never misses, and it carries over to every office in the county.
When a parcel crosses a boundary
St. Louis County touches Madison County, IL, Monroe County, IL, St. Clair County, IL, Franklin County, and Jefferson County, and each of those keeps its own parcel map. Acreage along the edge near Florissant can be split across two assessors' files, so check the adjacent map as well. On ground around St. Ann, the Platbookmapper state page lists each bordering county map for Missouri.
Beyond the parcel lines
Switch to the aerial basemap over Hazelwood helps you see where buildings sit inside the lines.
Reading a parcel record
Recent sales on nearby lots in Hazelwood give a rough idea of values; an appraiser is the real authority.
Printing and saving
Print or screenshot the parcel near Florissant with its ID visible, which helps later when you ask the assessor or a title company.
Frequently asked
Is the Hazelwood GIS map free?
The St. Louis County ArcGIS parcel map is free and opens without a login.
How do I find who owns a lot near Champ?
In most cases, the parcel record for a lot near Berkeley lists the owner of record; try variations if nothing comes up.
Does Hazelwood have its own GIS map?
In most cases, check the town website or ask city hall, especially near Bel-Nor.
What layers does the parcel viewer have in Hazelwood?
For acreage around Bridgeton, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
How do I save a parcel from the viewer around Bel-Nor?
Most viewers have a print or export tool; include the record panel for the lot near Berkeley.
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.