1. Gather the records before comparing sites
Begin with the parcel survey or plat and the property boundaries it shows. Gather recorded easements and any recorded restrictions that may affect where or how you can build. A map is a working reference; if a boundary or recorded document is unclear, resolve that question before treating a sketch as a site plan.
Also collect the current local requirements for the structure and work you have in mind. The rules for a cabin may not be the same as the rules for another structure or site feature. Keep the source of each requirement with your notes so you can confirm that it applies to this parcel and project.
2. Mark the reference lines each rule uses
On a working copy of the parcel map, mark each applicable reference line using the measurement point specified by the relevant rule or authority. A requirement might refer to different features on the property, so do not assume every measurement starts at the same boundary. Label the rule and its source next to each mark; note anything you still need to verify.
Keep this as a comparison sketch, not a final approval drawing. When the map, a recorded restriction, and a local instruction appear to conflict, ask the responsible local office or qualified professional how to resolve the discrepancy before relying on the line.
3. Compare the remaining cabin areas
Sketch a few candidate cabin areas against all of the marked lines. Compare how much usable room appears to remain and whether each option fits the structure you plan to build. Do not start with one preferred spot and bend the sketch around it; leave room to compare another location if a rule or property record changes the available area.
Bring access and other planned site needs into the comparison. Consider the route to the cabin, driveway and emergency access, and where a well or septic system might fit if those are part of the project. Those features may have their own siting requirements, so a cabin setback sketch alone cannot establish that the full plan works. Walk promising areas and record questions to check locally.