Blog · October 14, 2026 · Wisconsin
Hartland Plat Map: finding the recorded plat
A recorded plat shows how land near Pewaukee was divided into lots.
Main page: Waukesha County, WI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Trying to understand lot lines near Oconomowoc Lake? What you want is the Hartland plat map, because the recorded plat shows how the land was divided. Covered here for Hartland: where plats are filed, how a plat differs from a parcel map, and what to look for on the sheet.
Tracking down the Hartland plat map
For a lot in Hartland, the deed usually cites the plat; that makes the request quick.
Opening the official parcel viewer
Begin with the Waukesha County parcel viewer; it includes each tax parcel in the county, Oconomowoc Lake included. For property near Delafield, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. For land near Delafield, write down the parcel ID before closing the panel; every records desk in the county uses it to find the file.
Metes and bounds instead
Acreage around Nashotah outside a subdivision is often described by metes and bounds or survey description; look for a recorded survey for land near Oconomowoc Lake.
Offices that can help
If the acreage or value on a parcel near Nashotah looks off belong with the county real property listing office, since that office keeps the assessment data. Zoning, permits and septic questions near Nashotah need the planning or permitting office, depending on whether the land is inside town limits.
When a parcel crosses a boundary
Waukesha County touches Dodge County, Jefferson County, Milwaukee County, Ozaukee County, and Racine County, and each of those keeps its own parcel map. A tract near the line by Chenequa can show up across two assessors' files, so open the neighboring map as well. In and around Chenequa, our state page lists each bordering county map for Wisconsin.
Getting your bearings
Waukesha serves as the county seat, home to the main records offices. You'll also find Chenequa, Merton, Delafield, and Nashotah, each with its own cluster of lots. Around 412,591 people live in Waukesha County (Census estimate, 2023) across roughly 550 square miles.
Where Hartland fits in
Hartland lies within Waukesha County, Wisconsin, so its parcels are on the county's map. For a tract near Nashotah, city or town hall handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Lots just outside the town limits out by Merton generally falls under county rules, not municipal ones.
Plat map vs. parcel map
If the tax map and plat differ near Delafield, the recorded plat and a survey control.
How land is described here
Wisconsin uses the Public Land Survey System, which means a tract near Chenequa is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Chenequa odd-sized. Write down the legal description for the tract near Nashotah when you talk to a surveyor.
Amended plats
Lots near Delafield can be combined or reconfigured by a replat, so check for later filings; street vacations near Oconomowoc Lake show up in the records too.
Lots, blocks and easements
Recorded easements around Chenequa limit where you can build or fence; check the plat notes and any covenants.
Deeds, plats and who keeps them
For anything that matters, get the recorded deed through the Register of Deeds; the parcel map near Merton only summarizes it. For a tract near Merton, have ready the document number shown in the record panel to skip a name search.
Before you lean on the lines
Listed acreage is a tax-roll number; only a licensed surveyor establishes the real corners on land around Oconomowoc Lake. If the land is near Oconomowoc Lake, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Online indexes and office visits
Out toward Merton, many recorder offices offer an online index, while others require a visit or a request; copy fees are usually small.
Taking the map into the field
Most viewers work in a phone browser, handy when you're parked on a road near Oconomowoc Lake, but coverage can be spotty out of town. A printout of the tract near Merton helps when you meet an owner or agent.
Frequently asked
What does lot 7, block 3 mean near Chenequa?
Good question; it points to a spot on the plat for that subdivision near Oconomowoc Lake; the deed names the subdivision.
Are old plats online for land near Delafield?
Generally, older plats near Pewaukee may be on film or paper; call before you visit.
How do I get a copy of a plat in Hartland?
It depends, but recorded plats near Merton are filed with the Register of Deeds; use the plat reference from the deed or parcel record.
What do the dashed lines on a plat mean for land near Pewaukee?
Closer to Merton, dashed lines often mark easements or building lines, so check before you build.
Where is the legal description for land near Pewaukee?
In and around Oconomowoc Lake, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Waukesha 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.