How to Check Zoning on Your Property (And Why It Matters Before You Buy or Sell)

One of the biggest mistakes landowners make? Not checking zoning.

Zoning dictates what you can and can’t do with your land—whether you can build a home, start a business, or subdivide it. The problem? Many people don’t even know where to check zoning or that rules can change over time.

If you own land in Wisconsin or are looking to buy, here’s how to check zoning the right way.

Step 1: Start with Your County’s GIS System

Most counties have GIS (Geographic Information System) maps that allow you to search for properties and see zoning designations.

All you need to do is:

• Google "[Your County] GIS Map"
• Click on the official county GIS site
• Use the interactive map to find your property

Some GIS maps will show zoning overlays, while others may require an extra step.

Step 2: Find the Official Zoning Map

Many towns don’t have interactive zoning maps, meaning you’ll need to match up your property with a separate zoning map file.

For that, you’ll need to:

• Search for "[Your Town] Zoning Map"
• Download the PDF or image file
• Look for roads or landmarks near your property to pinpoint its location

Some maps are detailed. Others? They’re nothing more than a grainy PDF someone uploaded years ago.

Step 3: Check the Zoning Code & Ordinances

Finding the zoning code (e.g., R1R - Rural Residential, A-1 Agricultural) is one thing—understanding what it allows is another.

Most zoning ordinances list:
✔️ What structures you can build
✔️ Minimum lot size requirements
✔️ Whether commercial or recreational use is allowed

Some ordinances are available online. But in small towns? They might not exist digitally at all.

What If There’s No Online Zoning Info?

Not every town is keeping up with technology. If zoning info isn’t available online, you may need to:
📌 Call the zoning office and ask for details
📌 Visit the town hall in person to view the zoning map
📌 Check if zoning rules have changed—updates happen more often than people realize

In some cases, the only zoning map available is literally taped to the wall inside the town hall—meaning you have to go there yourself.

Why Zoning Matters for Landowners

Ignoring zoning can lead to big problems, whether you're buying or selling.

✅ If You’re Buying: You need to confirm if the land is buildable and if any restrictions apply.
✅ If You’re Selling: Buyers will ask about zoning, and properties with flexible zoning often sell faster.
✅ If You Already Own Land: Zoning changes over time, so staying updated prevents surprises.

Bottom line? Before making any decisions, check zoning—it could save you from major headaches later.

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