This a similar to the mortgage location surveys, required by the City of Homer, but with less stringent requirements and at a slightly lower cost. The following is from City Code: 1.70.040 Permit terms.
b. A zoning permit for a building or structure shall require the applicant to submit to the City Planner an as-built survey, completed by a licensed surveyor, of the location, foundation, dimensions, and proximity to all lot lines of all buildings and structures covered by the permit, promptly after completion of the work. [Ord. 20-03 § 1, 2020; Ord. 08-29, 2008].