Is a survey legally required to build a fence in Massachusetts?

No state law requires you to get a survey before building a fence in Massachusetts. However, many municipalities require a site plan or survey for fence permit applications, and building a fence without confirming the boundary line exposes you to encroachment liability. A survey is not legally mandatory but is strongly recommended when your fence will run near the property line.

What is the Massachusetts fence law for shared property lines?

Under MGL Chapter 49, Section 5, adjoining landowners share responsibility for maintaining a partition fence on the line between their properties, with each owner responsible for their half unless they agree otherwise. If a neighbor refuses to contribute to fence maintenance, you can go to the local fence viewers to enforce the statute.

What are fence viewers in Massachusetts?

Fence viewers are local officials, typically selectmen or aldermen in Massachusetts municipalities, authorized under MGL Chapter 49 to resolve fence disputes between neighbors. If you and a neighbor cannot agree on fence placement or maintenance responsibility, either party can petition the fence viewers to inspect and issue a binding decision. This is a low-cost alternative to court for minor fence disputes.

What happens if my fence crosses the property line in Massachusetts?

Your neighbor can demand that you remove the fence and restore their land. If you refuse, they can file a trespass claim in court. Massachusetts courts have consistently held that a property owner who builds a fence across a neighbor's land is liable for removal costs and potentially damages. If the encroachment has persisted for 20 years or more, the neighbor may also have an adverse possession claim.

Does my Massachusetts municipality require a permit to build a fence?

Many Massachusetts cities and towns require a building permit or zoning permit for fences over a certain height, typically 6 feet. Some municipalities also require a site plan or survey as part of the permit application to demonstrate that the fence will be within the property lines and meets required setbacks. Check with your local building department before starting construction.

Do I Need a Survey to Build a Fence in Massachusetts?

Key takeaway

Massachusetts does not legally require a survey before building a fence, but skipping one near a property line creates real encroachment liability.

The Short Answer: No Law Requires It, But You Probably Should

Massachusetts has no statewide law that forces you to hire a surveyor before building a fence. But that does not mean skipping the survey is a good idea, especially when the fence is going near your property line. Building a fence that crosses onto a neighbor's land creates liability for removal, damages, and potentially legal fees. The cost of a survey is almost always less than the cost of a fence dispute.

Massachusetts Fence Law: MGL Chapter 49

The basic rules for fences between neighbors in Massachusetts come from MGL Chapter 49, Sections 1 through 21. The key provisions:

Partition fences: When a fence sits exactly on the boundary line between two properties, each adjoining owner is responsible for maintaining their half (Section 5). Neither owner can unilaterally abandon responsibility for their half without consequences.
Spite fences: Massachusetts has a separate statute (MGL Chapter 49, Section 21) that prohibits building a fence for the sole purpose of annoying a neighbor. A fence with no useful purpose other than blocking light or views can be ordered removed by a court.
Fence viewers: Local fence viewers, typically the selectmen or aldermen of a municipality, have authority under MGL Chapter 49 to resolve fence disputes, assign maintenance responsibility, and inspect disputed fences. Petitioning fence viewers is faster and cheaper than going to court for most fence disagreements.

These rules apply to fences on or at the boundary line. They say nothing about where the boundary line actually is. That is a separate question, and the only reliable answer comes from a licensed surveyor.

When a Survey Is Required for a Fence in Massachusetts

While the state does not mandate a survey for fence construction, individual municipalities may. Common situations where a survey becomes required locally:

Building permit applications: Many Massachusetts cities and towns require a site plan showing the property lines and proposed fence location as part of a fence permit application. If the site plan must be prepared or certified by a licensed professional, you effectively need survey data.
Zoning setback compliance: Most Massachusetts municipalities have zoning setback requirements for fences, requiring them to be a minimum distance from the property line. A building inspector may ask for documented evidence that your fence meets the setback before issuing a permit.
Conservation Commission permits: If your property abuts a wetland, river, or coastal bank, the Massachusetts Wetlands Protection Act (MGL Chapter 131, Section 40) may require a Conservation Commission permit before you disturb land or install structures. A surveyor's plan showing setbacks from the wetland boundary is typically part of the application.

Check with your local building department before you start. The requirements vary significantly from town to town. Boston has different fence regulations than a rural Worcester County town.

Encroachment Liability in Massachusetts

Building a fence that crosses a property line in Massachusetts exposes you to a trespass claim. Your neighbor does not have to prove they suffered specific damages. The act of physically occupying their land is the violation. If a court determines your fence encroaches, you can be ordered to:

Remove the fence at your expense.
Restore the neighbor's land to its prior condition.
Pay attorney fees in some circumstances.

Massachusetts also has an adverse possession statute (MGL Chapter 260, Section 21) that allows someone who continuously occupies another's land openly and notoriously for 20 years to potentially claim ownership. A fence in the wrong place that sits for two decades can eventually create a real title problem for the original property owner.

The practical message: a survey before you build costs $500 to $1,500. Removing a fence and litigating an encroachment dispute can cost $5,000 to $20,000 or more. The math is straightforward.

What a Survey Provides Before Fence Construction

When you hire a licensed Massachusetts PLS to survey your property before building a fence, you receive:

Physical monuments at or near the corners of your property, typically iron pins or concrete bounds that mark the legal line.
A recorded plan showing the boundary lines and their dimensions, which becomes part of the public record at the Registry of Deeds.
Documentation that your fence is within your property, which protects you if a neighbor disputes the placement later.
A legal basis for any future demand that a neighbor remove an encroachment onto your land.

If the survey reveals that an existing fence is already in the wrong location, you know before you build. You can then decide whether to address the existing issue or simply build your new fence in the correct location.

When It Is Reasonable to Skip the Survey

A survey is most important when the fence will run close to the legal property line. If you are building a fence well inside your property, several feet from any boundary, and you are not near a wetland or conservation area, the encroachment risk is low. Similarly, if you have a recently recorded survey on file from a home purchase or prior project that already shows accurate corner locations, you may be able to work from that document.

However, even old survey plans can be unreliable if they are more than 10 to 15 years old and significant development has occurred nearby. Monuments can be disturbed by construction, road work, or utility installation. When in doubt, a licensed surveyor can simply locate existing monuments and mark the line for you, sometimes for less than a full boundary survey would cost.

Practical Steps Before Building a Fence in Massachusetts

Check your municipality's requirements. Call the building department and ask whether a permit is required for your fence height and what documentation they need.
Review any prior survey plans from your title documents or closing paperwork. If a recent survey exists and shows clear corner monuments, it may be adequate.
If no prior survey exists or you are uncertain where the corners are, hire a licensed Massachusetts PLS to locate or set monuments before you stake the fence line.
Talk to your neighbor. If the fence will run on or near the shared boundary, a brief conversation ahead of time prevents most disputes.

Find a Licensed Surveyor for Your Fence Project

Our directory lists 184 licensed land surveying firms across Massachusetts, organized by county. Whether you need a full boundary survey or just help locating existing corner monuments before a fence installation, you can find licensed surveyors near you. Browse the Massachusetts surveyor directory to get started.