Verified Through Survey Documents and Title Records
The identity of the professional or firm who conducted the last site survey is typically listed on the official survey document, which includes their name, license number, and date of completion. This document is often included in property transactions or title records.

• Found in boundary surveys, ALTA/NSPS surveys, or subdivision plats
  
• Title companies and land records offices may hold copies
  
• The surveyor’s seal and signature confirm legal responsibility
  

Accessible Through Property Deeds and Municipal Records
Local government departments such as the county recorder, assessor, or planning office may retain survey information as part of the public record. These offices can confirm when the survey was done and by whom.

• County land records may list survey filings with map and parcel data
  
• Planning departments may have archived site plans with surveyor details
  
• Real estate attorneys or title agents can access this information during transactions
  

May Require Contacting Previous Owner or Developer
If no public record is available, the previous property owner, developer, or engineering firm involved in the site’s development may have commissioned the last survey and can provide the details.

• Developers usually retain original survey data for construction and permitting
  
• Survey firms may issue certified copies if their work is identified
  
• Often requested during due diligence or pre-purchase investigation