Blog · September 27, 2026
Plat Map vs. Survey
Whats the difference?
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Plat Map vs. Survey: What’s the Difference and Why It Matters
Ever assume the map that came with your closing papers is enough to know exactly where your property lines are? Many homeowners make that mistake—and only discover the problem when a fence goes up in the wrong place, a neighbor disputes the boundary, or a building permit gets delayed.
The truth is, a plat map and a survey are not the same thing. Knowing the difference can save you time, money, and serious frustration.
What Is a Plat Map?
A plat map is the official recorded drawing that shows how a larger piece of land was divided into individual lots, streets, and easements. It reflects the planned layout of a subdivision at the time it was approved and filed with the county.
A plat shows lot numbers, approximate dimensions, streets, and recorded easements. What it does not show is what currently exists on the ground—fences, driveways, sheds, or possible encroachments.
What Is a Survey?
A property survey is prepared by a licensed land surveyor who measures the land in the field. It shows the exact current boundaries, corner markers, buildings, fences, driveways, and any encroachments. A survey reflects the property as it exists today.
Why the Difference Matters
A plat is useful for understanding the official lot layout. A survey is what you need when buying or selling property, building, fencing, applying for permits, or resolving boundary issues. Relying only on a plat can leave important gaps that a current survey would catch.
Finding Local Plat Maps and GIS Resources
Most counties offer free online GIS parcel viewers and recorded plats. A helpful directory for locating official county parcel viewers is Platbookmapper.com. Use it to find your local GIS tools, then request the official recorded plat from the county recorder if needed.
Ready to get clarity on your property lines?
Start by checking your local plat and GIS map through Platbookmapper.com. If you’re planning to build, buy, sell, or settle a boundary question, consider hiring a licensed surveyor for a current survey. Knowing exactly where you stand is one of the smartest moves a property owner can make.
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey.