Boundary Surveys identify and map the perimeter boundaries parcels of real property which will perhaps require the setting of permanent or semi-permanent "monuments" to mark the corners of the property being surveyed. The difference between boundary and title lines may need to be a part of the work in that identification.

Boundary Surveys require researching existing recorded (and sometimes unrecorded) survey maps and title documents (deeds, title reports, agreements, etc.), identification of encroachments either way across boundary lines, evidence of occupation of properties adjacent to the parcel being surveyed, evidence of easements or usages that may or may not have been recorded, etc.