Blog · October 14, 2026 · Missouri
Hazelwood Zoning Map: finding the district for a lot
A parcel's zoning district shapes building, splitting and business use near Bridgeton.
Main page: St. Louis County, MO GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Before you buy a lot near St. Ann with a plan in mind, check the Hazelwood zoning map before anything else: the zoning district can make or break the plan. This town guide covers: which office sets the rules for a lot, how to match a parcel to its district, and what to ask the planning staff for land near Ballwin.
Reading the Hazelwood zoning map for one lot
Inside town or city limits, zoning usually comes from the municipality, so a lot in Hazelwood follows that code. For rural land toward Florissant, the county's ordinance, if any, takes over; the county planning or zoning office can confirm. The quickest way to tell which applies: ask whether the parcel near Champ is inside the boundary.
Pulling up a parcel
Your first stop is the St. Louis County ArcGIS parcel map; it covers each tax parcel in the county, Florissant included. On ground around St. Ann, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. For land near Florissant, write down the parcel ID while you have it open; every office in the county will want it.
Using it on a phone
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Bridgeton, so load it before you lose signal. A printout of the tract near Champ keeps working without signal.
Hazelwood and the county around it
Hazelwood lies within St. Louis County, Missouri, which means parcel data comes from the county. On ground around St. Ann, the municipality handles matters such as zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Acreage past the city limits toward Champ often answers to county rules, not municipal ones.
Where the recorded documents are
For anything that matters, pull the recorded deed through the Recorder of Deeds; the parcel map near St. Ann only summarizes it. If you're looking near Bridgeton, bring the instrument number shown in the record panel so staff can find the deed fast.
Calling planning staff
Have the parcel ID ready and describe the plan for the lot near Bridgeton; ask what's allowed by right and what needs a permit. Ask whether a parcel near Champ meets current minimum size, since some older splits don't.
Permits after zoning
Even when zoning allows a use near Edmundson, you still need building permits and inspections; health and road departments may weigh in on land near Florissant.
How to look up the district
Look up the lot on the St. Louis County ArcGIS parcel map first, note the parcel number, then compare it to the zoning map from the office covering Hazelwood. If the land is near Champ, district codes like R-1, C-2 or A-1 aren't self-explanatory, so read the ordinance chapter for each; the letters vary from place to place.
A quick look at the area
Clayton serves as the county seat, where most land records are kept. You'll also find Bridgeton, Florissant, Edmundson, and Champ. About 987,059 people call St. Louis County home (Census estimate, 2023) across roughly 508 square miles. St. Louis County was formed in 1812, and some chains of title near Florissant are long. Features like Spanish Lake Park and Babler State Park make handy reference points on the map near Florissant.
Reading the ordinance
In and around St. Ann, the ordinance spells out uses allowed by right, uses needing a permit, and uses not allowed. For a parcel near Champ, overlay districts, such as floodplain, historic or airport zones, can add rules on top of the base district.
Asking for an exception
If a lot in Hazelwood is zoned for something else, ask about a variance, a conditional use permit or a rezoning.
Sections, lots and bearings
Missouri follows the Public Land Survey System, so deeds around Edmundson reference sections and townships. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though corrections make some sections near Bridgeton odd-sized. Write down the legal description for the tract near Champ before you request a deed or survey.
Before you lean on the lines
Tax maps are drawn for assessment, not measured on the ground, so a tree line near Champ often sits some distance off the line on screen. If you're looking near Bridgeton, records update in batches, so a deed recorded last month might lag behind.
Hazelwood: common questions
Are home businesses allowed near Berkeley?
For most people, home businesses in Hazelwood are often allowed with conditions; the ordinance lists the details.
What is the zoning on a property near Berkeley?
Good question; find the parcel near St. Ann on the St. Louis County ArcGIS parcel map, confirm whether it's inside Hazelwood limits, then ask that planning office for the district.
Can I see zoning on the parcel viewer for Hazelwood?
For most people, a zoning layer may be in the St. Louis County ArcGIS parcel map layer list; confirm any layer with planning staff in Hazelwood.
How do I rezone land near Champ?
The governing body near Edmundson decides after hearings; ask about fees and timelines early.
Does the parcel map work on a phone around Berkeley?
Most viewers run in a mobile browser; load it before you lose coverage near Bridgeton.
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.