Do you need a survey to sell land?

Often, no. Selling a whole parcel under its existing legal description doesn't usually require a new survey, but splitting land does: Iowa law requires a plat of survey for metes and bounds divisions, and Wisconsin and Minnesota route most splits through local land division rules that call for one.

This guide is written for landowners in Minnesota, Wisconsin and Iowa. It explains when the law requires a survey, when one is worth paying for anyway, and what to ask the surveyor. It isn't legal advice. Your surveyor, attorney and county office have the final word on your parcel. More on the details that come up at closing is in our closing deals library.

When does the law require a survey?

The state rules below are triggered by dividing land, not by selling it. If you're selling everything you own under the description already on your deed, the sale itself doesn't trigger them. Local ordinances and the county can add requirements, so confirm with your county before you rely on that.

Iowa: splits by metes and bounds

Iowa has the clearest rule. "The grantor of land which has been divided using a metes and bounds description shall have a plat of survey made of the division" (Iowa Code 354.4, 2026). The main exception is for right-of-way taken by a government agency or another entity with eminent domain power, which can use an acquisition plat instead.

Two definitions in the same chapter matter here (Iowa Code 354.2, 2026):

• A division is "dividing a tract or parcel of land into two parcels of land by conveyance or for tax purposes."
• An aliquot part is "a fractional part of a section within the United States public land survey system," like the NE 1/4 of the SW 1/4.

So if you're selling the south 20 acres of a field by metes and bounds, the plat of survey is on you as the seller. The statute also has the grantor or surveyor contact the county auditor, who decides whether the survey covers only the piece being sold or both pieces. Ask your surveyor and the county auditor how the rule applies to your exact description.

Wisconsin: certified survey maps and county ordinances

Wisconsin handles most smaller splits with a certified survey map, or CSM. State law allows a CSM of "not more than 4 parcels of land," and "the survey shall be performed and the map prepared by a professional land surveyor" (Wis. Stat. 236.34, 2025).

Larger divisions fall under the state's subdivision rules. A division for sale or building development is a subdivision when it creates "5 or more parcels or building sites of 1 1/2 acres each or less in area," either at once or "by successive divisions within a period of 5 years" (Wis. Stat. 236.02(12), 2025).

The bigger factor for most rural sellers is the county. Counties and towns set their own land division ordinances, and many reach further than the state minimum. Pierce County, for example, requires a CSM for a division that creates "at least one but not more than four parcels or building sites of 15 acres or less in size within a five-year period" (Pierce County Code 237-9). Your county's number may be different. Call the county zoning or land records office before you promise a buyer a split.

Timing matters too. Under Wis. Stat. 236.34, the approving authority has 90 days after a CSM is submitted to approve, conditionally approve or reject it. The approved map then has to be recorded with the register of deeds, within 12 months of the last approval and 36 months of the first, according to UW-Madison Extension (UW-Madison Extension, content last validated 2020). Confirm current deadlines with your county.

Minnesota: the county auditor and local subdivision rules

Minnesota has no single statewide survey rule like Iowa's. Instead, splits run through city, township or county subdivision regulations, and the county auditor enforces them at the deed. Under Minn. Stat. 272.162 (2025), the auditor won't transfer or divide land when the conveyance is "less than a whole parcel of land as charged in the tax lists" and the split falls under local subdivision rules, unless the local government certifies the rules don't apply, approves the split or waives the requirement.

In practice, that means your county or township decides whether your split needs a survey, a plat or an approval. Ask them before you list part of a parcel.

When is a survey worth it anyway?

A survey can be worth paying for even when no law requires it. These are the situations where one tends to prevent a problem at closing:

• The fence isn't the line. Old fences often follow what was convenient, not the deed. If a buyer thinks the fence is the boundary, a surprise later can sink the deal or start a dispute with a neighbor.
• The acreage is uncertain. Land sells by the acre. If your deed, your tax statement and your FSA maps disagree, a buyer paying per acre will want to know which number is real.
• The description is old or vague. Descriptions that reference a creek, a road that moved or a neighbor's old fence can be hard to locate on the ground today.
• A building, drive or stand sits near a line. Encroachments, in either direction, are easier to fix before a sale than after.
• Access runs over someone else's land. A survey can show whether a recorded easement actually matches the road people use. See selling landlocked land if your access is in question.
• The buyer's lender or title company asks. Ask the title company early whether the policy will carry a standard survey exception and what it would take to remove it.

If none of these applies and the buyer isn't asking, a survey may not be needed. That's a decision to make with your agent and attorney, not a default either way.

What kind of survey do you need?

"Survey" covers several different kinds of work. Ask for the one the situation calls for.

Before anyone orders an ALTA/NSPS survey on farm or hunting ground, confirm who in the deal actually requires it and why. Ask the surveyor to quote each option so you can compare.

Who pays, and when should you order it?

Who pays is negotiable, and it belongs in the purchase agreement. When you're splitting land, the survey is usually your job as the seller, because the division can't be recorded correctly without it (and in Iowa, the statute puts it on the grantor).

Order early. A split may need the survey, then local review, then recording, all before closing. In Wisconsin that local review alone can run up to 90 days. If you're planning to sell part of your land in the next year, talk to a surveyor and your county before you list, not after you have a buyer.

Questions to ask a land surveyor

Bring your deed, your tax statement and any old surveys or plats to the first call. Then ask:

1. Does my current legal description work for this sale, or does it need a new survey?
2. If I'm splitting the land, what does my county or township require, and in what order?
3. Will you set or find the corner monuments, and will you flag the lines so a buyer can walk them?
4. Do the fences, drives or buildings fall where the deed says they should?
5. What will the survey show about recorded easements and access?
6. How long until the survey is done, and how long until any required approval and recording?
7. What do you need from me, and what will it cost?

What to do next

Pull your deed and look at the legal description. If you're selling it all as described and the fences and acreage line up, ask your agent whether a buyer in your area is likely to want a survey. If you're selling part of it, call a licensed land surveyor and your county land records or zoning office this week. For everything else to check before you list, see the land sale due diligence checklist and getting your land ready to sell.