Blog · October 14, 2026 · Wisconsin
Using the Greendale Plat Map
A recorded plat shows how land near Cudahy was divided into lots.
Main page: Milwaukee County, WI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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If a legal description for land in Greendale cites a lot number, you'll need the Greendale plat map to make sense of it. Covered here for Greendale: where to request a copy, how a plat differs from a parcel map, and what to look for on the sheet.
Getting started with the Greendale plat map
For a lot in Greendale, the deed or parcel record often names the subdivision and plat reference; that makes the request quick.
Where the parcel data lives
The official parcel map for this area is the Milwaukee County parcel viewer, and anyone can open it without signing up. With a lot near West Allis, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. Near Oak Creek, a pop-up or side panel usually lists the owner of record, assessed acreage, a parcel ID and often a sale date.
Where Greendale fits in
Greendale lies within Milwaukee County, Wisconsin, so its parcels are on the county's map. If the land is near Cudahy, the municipality handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Acreage past the city limits toward Cudahy often follows county rules rather than the town's.
Milwaukee County in a few facts
Milwaukee is the county seat, where most land records are kept. Smaller places on the map include Hales Corners, West Allis, West Milwaukee, and Oak Creek, each with its own cluster of lots. Roughly 916,205 people live in Milwaukee County (Census estimate, 2023) spread over about 241 square miles. Milwaukee County was formed in 1835, and some chains of title near West Allis are long. Features like Menomonee River and Kinnickinnic River make handy reference points on the map near Cudahy.
Reading the legal description
Wisconsin follows the Public Land Survey System, which means a tract near Oak Creek is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though real sections near Cudahy vary in size. Write down the legal description for the tract near Cudahy for any title or survey request.
Field tips
Most viewers work in a phone browser, which helps when you're standing on land near Hales Corners, so load it before you lose signal. A printout of the tract near West Milwaukee helps when you meet an owner or agent.
Amended plats
Lots near Oak Creek can be combined or reconfigured by a replat, search the index for replats of the same subdivision; street vacations show up in the records too.
Backing up the map with records
For anything that matters, request the recorded deed from the Register of Deeds; the parcel map near Oak Creek only summarizes it. Inherited tracts near Hales Corners can trace back through many deeds, and a title company can sort it out on a real sale.
Recorded plat or GIS layer
If the tax map and plat differ near West Milwaukee, the recorded plat and a survey control.
Details on the Greendale plat map
Recorded easements around West Milwaukee limit where you can build or fence; read the notes on the sheet.
Getting a copy
If the land is near Cudahy, many recorder offices offer an online index, while others require a visit or a request; copy fees are usually small.
When there's no plat
Rural land near West Milwaukee that was never subdivided may have no plat at all; the deed and any recorded survey describe it instead.
When a parcel crosses a boundary
Milwaukee County touches Muskegon County, MI, Ottawa County, MI, Ozaukee County, Racine County, and Washington County, and each of those keeps its own parcel map. A tract near the line by St. Francis may show up across two assessors' files, so look at the adjacent map as well. Out toward Hales Corners, our state page links every neighboring county map across Wisconsin.
Which office to call
Questions about value or the owner field for land near St. Francis are handled by the county real property listing office, which maintains the tax roll. Zoning, permits and septic questions near Hales Corners need the planning or permitting office, depending on whether the land is inside town limits.
A word on accuracy
Tax maps are drawn for assessment, not surveyed, so the edge of a yard near Cudahy often sits a few yards off the line on screen. If the land is near West Allis, records update in batches, so a deed recorded last month can take weeks to appear.
Quick answers
What is a lot and block description around Cudahy?
Short answer: it points to a spot on the plat for that subdivision near Cudahy; the deed names the subdivision.
Can lots near West Milwaukee be combined?
For most people, combining or splitting lots near Oak Creek usually needs a recorded plat change.
Where can I find the Greendale plat map?
Good question; recorded plats near West Allis are filed with the Register of Deeds; use the plat reference from the deed or parcel record.
Is a plat map a survey around Hales Corners?
If you're looking near Cudahy, GIS parcels are tax drawings, and the recorded plat is the legal document; trust the plat when they differ.
How do I save a parcel from the viewer around Oak Creek?
Use the print button or a screenshot, and it's worth keeping the parcel ID visible for land near West Milwaukee.
Open the official Milwaukee County, WI 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.