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Top-Rated Land surveyors in Normal - Updated Nov 2026

Land Surveying FAQs, answered by experts

The small lines on the tape measure either indicate inches, fractions of an inch, or centimeters and millimeters. On the imperial unit side (aka the inches side), the longest lines indicate inches, followed by the next shortest lines that indicate a half-inch, and then the quarter, eighth, and sixteenth-inch. On the metric side, the lines break down meters, centimeters, and millimeters.

If you’re planning to dig on your property, you’ll need to check for underground utility lines. Call the national call-before-you-dig 811 number. Once connected to an operator, you can schedule a site visit to mark underground lines. This way, you won’t accidentally dig into pipes and can cause major (read: costly) issues.

Land surveys are worth it in several scenarios including selling your home, building an addition, constructing a fence, or making major changes to your landscape. A professional land survey can help you avoid legal issues with your neighbors and confirm the value of your property. In many cases, you may be required to order a land survey to receive a construction permit or mortgage loan.

A land survey defines and records the physical aspects of a property, including its boundaries, dimensions, easements, features, and sometimes topographical information. In contrast, a land appraisal determines the property's monetary value. While an appraiser will often consult a land survey to understand the property's physical specifications, the survey itself does not determine the land's value.

Property lines, building locations, and potential encroachments are mapped.

The Normal, IL homeowners’ guide to land surveying services

From average costs to expert advice, get all the answers you need to get your job done.