The 4 Legal Elements of Surveyor Negligence

Suing a professional land surveyor is not like suing someone who rear-ended your car. Professional malpractice lawsuits are highly technical and expensive. Simply proving that the surveyor made a mathematical mistake on a map is not enough to win a case. You must prove all four legal elements of professional negligence.

Element 1: Duty of Care

First, you must prove the surveyor owed you a professional duty. If you hired the surveyor directly and signed a contract, establishing duty is easy.

If you didn't hire them—for example, you bought a house relying on a survey the seller commissioned—establishing duty is harder. Most states now follow the Restatement (Second) of Torts, ruling that a surveyor owes a duty not just to the person who paid them, but to any "foreseeable third party" who would reasonably rely on the survey's accuracy (like a homebuyer or a builder).

Element 2: Breach of Duty (The Standard of Care)

This is the hardest element to prove. You cannot just prove the surveyor was wrong. You must prove their methodology fell below the minimally acceptable professional standard for surveyors in that geographic area.

• If the surveyor used accepted methods but arrived at a different interpretation of a 200-year-old deed than another surveyor, it is usually a valid professional disagreement, not a breach.
• If the surveyor found an original iron pipe but ignored it to stake a purely mathematical distance, or failed to check the adjacent neighbor's deed for overlaps, that is almost universally considered a breach.
• The Requirement: You must hire a second licensed surveyor as an Expert Witness to legally testify that a breach occurred.

Element 3: Causation (Proximate Cause)

The surveyor's breach must be the direct cause of your problem. If a surveyor incorrectly places a property line 10 feet off, but you built your fence 20 feet entirely on your neighbor's property because you never even looked at the surveyor's map, the surveyor's error did not cause your encroachment.

Element 4: Financial Damages

In civil court, you sue for money. If a surveyor maps your property incorrectly, but you catch the error before you build anything, you have suffered no damages other than the cost of the survey itself (which you can demand a refund for). You cannot sue for "emotional distress" over a property line.

If, however, you built a $50,000 swimming pool over the line based on the bad survey, and a judge orders you to fill it in and return the land to the neighbor, your damages are the cost of the pool, the demolition, and potentially the diminished value of your property.

FAQ

See also: Standard of Care | Malpractice Examples | Lawsuit Guide