Platbookmapper County GIS Directory

Blog · September 27, 2026

What Lot Frontage Means on a Plat

Frontage is the length of the lot line that touches the street right of way.

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A recorded plat sheet spread on a table

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On a straight street it is one dimension. On a curve it is often the arc length. The plat prints the number. A chord measured across the curve is shorter.

On the recorded sheet

Minimum frontage rules decide whether a lot can exist or whether a driveway is allowed. The right-of-way line, not the edge of pavement, is the front.

The mix-up to avoid

A corner lot has two frontages. Each street gets its own length.

Find the county map

Open Platbookmapper and pick the county that taxes the land. Use that viewer to get the parcel ID, then match it to the recorded plat if you need the easements and lot numbers.

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