Boundary survey: when you need one and what to expect
Buying land, building a fence or settling a question with a neighbor? What a boundary survey is, how a licensed surveyor does it, what you receive and how to prepare.
A boundary survey locates the legal lines of your property on the ground. A licensed professional land surveyor compares the written records (deeds, recorded plats, earlier surveys) with what is actually there, then finds or sets the corner markers. It is the only reliable answer to the question "where does my land end?"
When a boundary survey makes sense
- Before you buy land or a house, especially a rural parcel, a lot with an old fence or a property whose description is vague. A title policy often excludes matters "a survey would disclose".
- Before you build a fence, a garage, a pool or an addition near a property line, to respect the setbacks set by your zoning code.
- When a neighbor disagrees about where the line is, or a structure seems to sit on the wrong side.
- Before you split, combine or sell part of a lot, since the new parcels have to be described precisely.
How the surveyor works
- Research. The surveyor gathers your deed, the deeds of adjoining parcels, recorded plats and any earlier surveys from the county records.
- Field work. A crew searches for existing monuments (iron pins, pipes, concrete markers) and measures them with GPS and total stations.
- Analysis. The surveyor reconciles the records with the evidence found on the ground. When they do not agree, state law and the surveyor's professional judgment decide which evidence controls.
- Marking. Missing corners are set, usually with a capped iron rod carrying the surveyor's license number, and lines can be flagged or staked on request.
- Plat. You receive a signed and sealed drawing showing the lines, the corners, the dimensions and any visible encroachments. In some states the survey must also be recorded or filed with the county.
What a boundary survey does not do
A surveyor can show where the lines are and point out possible encroachments, but cannot settle ownership disputes: that is for the parties, their attorneys or a court. A boundary survey is also not a topographic survey, an ALTA/NSPS survey or a FEMA Elevation Certificate, which answer other questions.
How to prepare
- Gather your deed, any previous survey, the plat of your subdivision and your title commitment if you are buying.
- Tell the surveyor why you need the survey (fence, sale, building permit, dispute): it changes what they deliver.
- Clear access to the corners if you know where they are, and tell your neighbors a crew may be walking the lines.
- Ask for the surveyor's license number and check it with your state board before you hire.
Describe your property in the form: licensed land surveyors near you get back to you with a written quote for your boundary survey.