Connecticut Survey Guide

Land Surveying in Connecticut: What Property Owners Need to Know

Updated for 2026 · 7 min read · How-To Guides

Key takeaway

Connecticut land surveying law under CGS §20-300 to §20-306 governs who can survey property and certify boundaries. Here is what owners need to know.

Connecticut Land Surveying Law: The Framework Property Owners Need

Connecticut land surveying law exists to protect property owners. When you buy a home in New Haven, build an addition in Glastonbury, or dispute a fence line in Norwalk, the legal framework governing who can survey your land and what their work means determines how reliable the information is that you are getting. Understanding the basics of how Connecticut licenses surveyors, what they can and cannot do, and how property boundary disputes are resolved gives you the tools to protect your interests.

The Licensing Framework: CGS §20-300 Through §20-306

Connecticut land surveying is governed by CGS §20-300 through §20-306, administered by the Connecticut Department of Consumer Protection (DCP) through its Professional Engineers and Land Surveyors licensing division. The key provisions:

  • CGS §20-300 defines land surveying practice and establishes that only licensed individuals may perform the work.
  • CGS §20-301 establishes the State Board of Examiners for Professional Engineers and Land Surveyors, which oversees licensing standards and disciplinary proceedings.
  • CGS §20-302 sets the qualifications for licensure, including education, experience under a licensed PLS, and passage of national exams.
  • CGS §20-303 covers exemptions from licensure requirements, primarily for employees working under a licensed PLS's direct supervision.
  • CGS §20-304 through §20-306 address reciprocal licensing with other states, license renewal requirements, and disciplinary authority.

The bottom line: if someone is performing boundary surveys, setting property monuments, or stamping survey plans for recording in Connecticut without a current PLS license, they are breaking the law and any work they produce has no legal standing.

What a Connecticut PLS Can Do

A licensed Connecticut Professional Land Surveyor can:

  • Research deed chains at Connecticut town clerk offices and interpret metes-and-bounds descriptions.
  • Locate, identify, and document existing boundary monuments, including iron pins, stone bounds, and concrete bounds.
  • Set new boundary monuments where existing ones are missing, disturbed, or inadequate.
  • Prepare and stamp survey maps for recording at the appropriate town clerk's office.
  • Prepare and stamp elevation certificates for NFIP flood insurance purposes.
  • Prepare subdivision plans for filing with local planning and zoning commissions.
  • Offer professional opinions on boundary locations when conflicting evidence exists.
  • Testify as an expert witness in Superior Court boundary disputes.

What a Connecticut PLS Cannot Do

A PLS is not an engineer. Connecticut law reserves engineering design work for licensed Professional Engineers. A PLS surveying your lot cannot:

  • Design structural elements, drainage systems, or site infrastructure.
  • Certify engineering calculations for building permit applications.
  • Approve structural drawings or site engineering plans.

For projects that need both a survey and engineering design, such as a new home on a sloped lot requiring a site plan with both boundary and grading information, you may need both a PLS and a PE, or a firm that employs both.

Property Line Disputes in Connecticut

Property line disputes between Connecticut neighbors follow a predictable sequence. A licensed PLS surveys both properties, researches the relevant deed chains, and produces a map showing their professional opinion of where the legal boundary lies. If both neighbors accept the survey, the dispute ends. If not, the matter proceeds to Connecticut Superior Court.

Connecticut courts resolve boundary disputes by weighing evidence in a specific priority order. Physical monuments called out in a deed, such as iron pins, stone bounds, or stone walls, take precedence over deed dimensions. Deed dimensions take precedence over directions. Directions take precedence over other less specific descriptions. A surveyor's expert testimony about what the physical evidence shows and what the historical records support is central to any court proceeding.

Stone walls are a recurring source of dispute in Connecticut. Because colonial-era deeds frequently describe property lines as running “along the stone wall,” the legal status of a particular wall as a boundary marker has been litigated in Connecticut courts many times. The key questions are whether the deed specifically references the wall, whether the wall has remained in substantially the same location, and whether both parties' deed chains are consistent in referencing the same wall. A PLS with experience in historical boundary research is essential for stone wall cases.

Connecticut Encroachment Law

If a structure, fence, or improvement crosses a property line in Connecticut, it is a trespass onto the neighboring parcel. The affected property owner can demand removal and file a lawsuit if the encroachment is not corrected. Connecticut courts have consistently ordered encroachments removed at the encroaching owner's expense.

Connecticut also recognizes adverse possession under CGS §52-575, which allows a person who has openly, continuously, and notoriously occupied another's land for 15 years to potentially claim ownership. Adverse possession is not automatic. It requires a court judgment after the 15-year period has run. But a fence placed in the wrong location that remains undisturbed for 15 years can become the basis for a real legal claim. This is a practical reason why resolving encroachments promptly matters.

Survey Monument Law in Connecticut

Connecticut law protects survey monuments as part of the state's system of permanent property records. Removing, disturbing, or destroying a survey monument is a violation of Connecticut law. A property owner who hires a contractor, excavator, or utility company whose work disturbs or removes existing iron pins or concrete bounds is legally responsible for having those monuments re-established by a licensed PLS.

When construction work is planned near property lines, the standard practice is to hire a PLS to locate and document existing monuments before work begins, and to re-establish any disturbed monuments after construction is complete. This documentation creates a clear record if a dispute arises later about whether work affected the property line.

Zoning Setbacks and Surveys in Connecticut

Connecticut municipalities use zoning ordinances to establish minimum setback distances between structures and property lines. Setbacks vary by town and by zoning district within each town. Hartford, Bridgeport, Waterbury, New Haven, and Stamford all have their own local zoning codes with specific setback requirements. Before building any structure near a property line, confirming the legal boundary location with a licensed PLS is essential. An addition or garage built within the required setback distance creates immediate zoning compliance issues that can require expensive corrections.

Most Connecticut building departments require a survey or site plan showing property lines and proposed structure locations as part of the building permit application. This requirement effectively means you need accurate survey data before breaking ground on any structure that comes within the setback zone.

Connecticut's Town-Based Recording System and Survey Plans

Connecticut records land documents at the town level, not the county level. Each of Connecticut's 169 towns maintains its own land records at the town clerk's office. When a PLS completes a boundary survey and produces a final map, that map is recorded at the town clerk's office for the municipality where the property sits. The recorded map becomes part of the permanent public land record for that town.

A survey plan that has not been recorded at the town clerk's office is not part of the public record and does not bind future owners of the property or neighboring parcels. Always confirm with your surveyor that recording at the town clerk is part of the scope of work and that any filing fees are included in or clearly identified in the quote.

Find a Licensed Surveyor in Connecticut

Our directory lists 127 licensed land surveying firms across Connecticut. Every surveyor in our Connecticut directory is sourced from state licensing records maintained by the Connecticut Department of Consumer Protection. Browse by region to find firms experienced in your project type and municipality.

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Browse Connecticut Surveyors

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Frequently Asked Questions

What does CGS §20-300 through §20-306 require for land surveying in Connecticut?

CGS §20-300 through §20-306 establishes that only a licensed Professional Land Surveyor (PLS) can perform boundary surveys, set or replace property monuments, and certify survey maps for recording in Connecticut. The law sets education, examination, and experience requirements for licensure, and gives the Connecticut Department of Consumer Protection authority to discipline or revoke licenses for violations.

Can anyone place a property stake in Connecticut without a PLS license?

No. Connecticut law reserves the act of establishing or marking property boundaries for licensed Professional Land Surveyors. A homeowner can locate and reference existing monuments set by a prior surveyor, but placing new stakes, iron pins, or bounds that purport to represent legal boundary corners requires a PLS. Improper monument placement can create legal liability and title problems.

What is the difference between a PLS and a PE in Connecticut?

A Professional Engineer (PE) and a Professional Land Surveyor (PLS) are separate licenses in Connecticut, both administered by the Department of Consumer Protection. A PE is licensed to design and certify engineering work. Only a PLS is licensed to perform boundary surveys, establish property lines, and certify survey maps. Some individuals hold both licenses, but a PE without a PLS license cannot legally perform boundary surveys in Connecticut.

How does Connecticut handle property line disputes between neighbors?

Connecticut property line disputes are typically resolved through a boundary survey by a licensed PLS, which produces a recorded map showing the legally correct line. If neighbors cannot agree based on the survey evidence, the dispute proceeds to Superior Court. The court weighs physical monuments, deed language, prior recorded maps, and the principles of Connecticut property law in reaching a decision.

What is a survey monument under Connecticut law?

A survey monument is a physical marker that identifies a property corner or boundary line. Connecticut law recognizes various monument types, including iron pins, concrete bounds, drill holes in ledge, and stone bounds. Original monuments called out in a deed carry the highest legal weight. A licensed PLS sets new monuments when existing ones are missing or disturbed, and any new monument must be documented in a recorded survey map.