Property Lines Before Building a Fence
By AcreBound Editorial Team Updated:
Quick Answer
Before building a fence, confirm where your boundary is. A parcel map helps you plan, but it is not accurate enough to place posts. Find your survey or corner pins, or hire a surveyor if the fence will sit near the line.
Also check local permit and height rules, utility easements and HOA restrictions, call 811 before digging, and talk to your neighbor.
Before you build a fence, confirm where your boundary actually is. A parcel map is a good way to plan and to see roughly where the line runs, but it is not accurate enough to place posts. If the fence will sit near the line, get a survey or locate the survey pins first, check local rules and utility easements, and talk to your neighbor.
Why the Fence Line Matters
A fence built even a foot over the boundary can end up on your neighbor's land. That can mean being asked to move it, a dispute, the cost of taking it down and rebuilding, or trouble when you sell. Moving a fence after it is built often costs far more than getting the line right the first time.
Many people assume an existing fence marks the boundary. Often it does not. Old fences are built from habit, convenience or the terrain, and they can be several feet off the real line. Wisconsin's UW-Extension makes the same point in its fence fact sheet: where a fence stands does not decide where the boundary is.
Step by Step: Before You Dig a Post Hole
- Look at the parcel on a map. See the approximate shape, the neighbors and which sides you want to fence. This is for planning only. How to Read a Parcel Map helps if you are new to it.
- Find your survey or plat. You may have a survey from when you bought the house. Check closing papers, or ask the county recorder for the plat. If you have neither, see How to Find Your Property Lines.
- Locate the corner pins. Use the survey measurements and a metal detector (How to Find Property Corners). Pins confirmed on both ends of a side give you a straight line to follow.
- Hire a surveyor if you cannot confirm the line. If pins are missing, if the lot is irregular, or if the fence will sit within a couple of feet of the line, a surveyor can stake the boundary. Tell them it is for a fence, and ask whether staking only the fence run is an option.
- Check local rules. Cities and counties often set the maximum height, required setbacks from the street or sidewalk, and whether you need a permit. HOAs and deed restrictions can add rules about materials and style.
- Check for easements. Utility, drainage and access easements may restrict what you can build in that strip. Sacramento County's assessor points out that easements do not appear on assessor maps and suggests a preliminary title report as the easiest way to find them.
- Call 811. Before digging, have buried utility lines marked. It is free, and some states ask for a wait. Texas asks for two full working days, for example. Private lines such as a sprinkler or yard-light cable are generally not marked.
- Talk to your neighbor. A short conversation, or a note, avoids many problems.
Where Exactly Should the Fence Go?
| Option | What it means | Things to know |
|---|---|---|
| Fully on your side | Posts and rails sit entirely inside your property, a little back from the line | The cautious choice. Leaves a small strip outside that you still own but may have trouble using |
| On the line | Posts are centered on the boundary | Many places want the neighbor's written agreement first, and some require a small setback from the line. Ask your local office |
| Set back from the street | Front fences often must be inside a minimum distance from the sidewalk or road | The boundary is not always the edge of the pavement. Snohomish County notes that painted road stripes do not show the edge of the right-of-way |
Many homeowners build a little inside the line, which protects them if the boundary turns out to be slightly different from what they expected. That is a practical choice, not a legal rule, and the right offset depends on your local requirements and your relationship with the neighbor.
Who Pays for a Shared Fence?
It depends on where you live. In Florida, UF/IFAS says adjoining owners generally have no duty to fence and no right to make a neighbor chip in unless they agree to it. Wisconsin has a different rule for farmland: under its fence law, owners of adjoining agricultural land split a boundary fence's duty equally unless they agree otherwise, and a written agreement must be signed, witnessed, notarized and filed with the town clerk. Most residential lots fall outside both examples, so do not assume. Ask your city or county, or a local attorney, before sending a neighbor a bill or accepting one.
What If You Do Not Know Where the Line Is?
- No survey and no pins. Hire a surveyor. For a long fence, compare the survey quote with the cost of rebuilding the fence.
- A neighbor says the line is somewhere else. Do not start building. Ask both sides to agree on a surveyor, or let a surveyor stake it. Sacramento County's assessor treats a fence disagreement as a private civil matter that a licensed surveyor needs to resolve.
- An old fence is already there. It may not be on the boundary. A survey can tell you how far off it is. Replacing it in the same place can quietly lock in a wrong line. Some states recognize a boundary by long-standing acceptance. UF/IFAS describes Florida's version as requiring more than seven years and a dispute or uncertainty about the line, and says a fence alone does not prove uncertainty. Where the boundary is clear and a neighbor's fence plainly crosses it, UF/IFAS advises notifying them in writing.
- The line runs through trees or a creek. Ask the surveyor to mark specific points, and ask your local office about rules for shared trees and water features.
Common Mistakes
- Building along an existing fence without checking it.
- Using a parcel map or phone GPS to place posts.
- Skipping the permit or setback check, then being asked to take the fence down.
- Ignoring easements. A fence inside a utility easement may have to be removed, at your cost, if the utility needs access.
- Forgetting to call 811.
Frequently Asked Questions
Can I build a fence right on my property line?
Often, with your neighbor's agreement, but the rules differ by city and state and some places require a setback. Check local rules first, and get any agreement in writing.
Do I need a survey before building a fence?
Not always, but it is the safe choice when the fence will sit within a couple of feet of the line or when pins are missing. Surveys are the only way to be sure of the exact line.
Is a fence always built on the property line?
No. Fences are often built to suit the terrain, convenience or habit, and many sit off the true boundary.
Can I use a phone app to place fence posts?
Use it to plan and to understand the layout. Do not use it to decide where posts go, because the mapped line and the phone location each carry error.
For more on why a map is not enough for fence work, see Property Line Map vs Land Survey.
Sources
- Fences in Agricultural Areas, Fact Sheet 13 (UW-Extension, Wisconsin) Fence placement and the boundary; agricultural fence law and written agreements.
- Handbook of Florida Fence and Property Law: Adjoining Landowners, FE106 (UF/IFAS) Duty to fence and cost sharing in Florida.
- Handbook of Florida Fence and Property Law: Boundaries and Possession, FE107 (UF/IFAS) Fences as evidence, boundary by acquiescence and notifying a neighbor.
- About Assessor Parcel Maps (Sacramento County Assessor) Easements, preliminary title reports and fence disagreements.
- Snohomish County Assessor FAQ (Washington) Right-of-way and road stripes.
- What To Expect When You Contact Texas811 Free locate requests, two-working-day wait, private lines.