As the name indicates, an as-built survey shows the modifications to a construction site or a piece of land. The purpose of an as-built survey is to ensure that the completed construction project is proceeding according to the original design and meets all relevant codes and regulations. The survey may include measurements of a building's overall dimensions, the placement of walls, windows, and doors, the location of utility lines, and any other relevant details that are necessary to document the construction.
As-built surveys are often required by local building departments and other regulatory agencies as a condition of final approval for a construction project. They can also be useful to property owners, architects, and contractors who want to maintain accurate records of their completed projects for future reference
