Do I Need a Survey to Build a Fence?

Usually yes. If your fence will run anywhere near a property line, you should locate that line with a licensed survey before you set a single post. A fence built even a few inches over the boundary is a legal encroachment your neighbor can force you to move or remove, and the cost of tearing out and rebuilding a fence dwarfs the $450 to $900 a boundary survey costs. Some cities also require a survey or a signed setback certification before they issue a fence permit.

Why a fence is the survey nobody thinks they need

Fences look simple, so people skip the survey and eyeball the line off an old fence, a hedge, or a neighbor's word. That guess is where the trouble starts. The prior fence was probably built the same way, off another guess, and lines drift a little with each rebuild. When your new fence lands over the true boundary, three things can happen: the neighbor makes you move it, the encroachment clouds your title when you sell, or years of the fence sitting there hand the neighbor an adverse possession argument for the strip on their side.

A survey for a fence ends the guessing. A licensed surveyor recovers or resets the corner monuments, marks the line, and gives you a drawing you can hand the fence crew and, if needed, the permit desk.

When you legally or practically need a survey before fencing

The one rule that covers almost every case: the closer the fence is to the boundary, the more you need the boundary located by someone whose determination holds up in front of a building official and a judge.

What kind of survey do I need to build a fence?

You need a boundary survey, sometimes called a property line survey. It is the survey that legally establishes where your lines and corners are. The surveyor pulls your deed and the recorded plat, measures the parcel, recovers or sets a monument at each corner, and can flag the line so your fence contractor builds to it. A topographic survey or an elevation certificate answers different questions and will not tell you where to put the fence. If you are weighing the options, our guide on the property line survey walks through exactly what you get. Where the fence permit itself asks for a scaled drawing showing the fence and its distance to each line, that is a site plan survey for a building permit, and many departments want it sealed.

Get it staked, then hire the crew

Before any digging starts on a fence project, ask the fence company for proof they are licensed and insured, and confirm they carry a current certificate of insurance so a cut utility line or a damaged neighbor's property does not land on you. Then have the boundary staked. The order matters: survey first, contractor second, because the survey tells the crew where the line actually is.

Questions people ask before fencing

Can you put up a fence without a survey?

You physically can, and plenty of people do, but you are gambling. Without a survey you are guessing at the line, and a fence built over it is an encroachment you may have to remove at your own cost. If the fence sits well inside your lot and no neighbor disputes it, the risk is low. Near the line, or where pins are missing, skipping the survey is how neighbors end up in court.

How much does a survey for a fence cost?

A boundary survey for a typical suburban lot runs $450 to $900. Larger or rural parcels, missing monuments, and rush turnarounds push it higher. Set against the cost of removing and rebuilding a fence on the correct line, plus a possible dispute, it is cheap insurance. Full pricing by survey type is in our land survey cost guide.

Who pays for the survey, me or my neighbor?

Whoever is building the fence normally pays for the survey. If you and the neighbor are splitting a shared fence on the line, you can agree to split the survey too, which is common and sensible because you both rely on the result. There is no law forcing a neighbor to share the cost unless you have an agreement.

Do I need a survey if I already have a plat?

A recorded plat shows the dimensions of your lot, but it does not mark the corners on the ground. Unless someone has physically located those corners, you still do not know where the line is in your yard. If you can find and verify every corner pin against the plat, you may be set for a fence well inside the line. Near the boundary, have a surveyor confirm the corners.

What if my neighbor built their fence over my line?

Get a boundary survey first so you have a sealed determination of the true line. With that in hand you can show the neighbor where the line is, and most encroachments get resolved once the facts are clear. If it does not resolve, the survey is the evidence your attorney needs. Do not tear anything out on your own read of the line.

The bottom line

If the fence goes near the boundary, get the line located before you build. The survey costs a few hundred dollars and takes about a week; a fence on the wrong side costs far more and can drag on for years. Post your fence job on the Surveyors.io homepage and compare up to three quotes from license-verified local surveyors within 24 hours.