This is a survey that shows the property in its current state which can be done during or after construction is done on a property. Usually this is carried out to ensure design conformity.

The builder or local authorities may request one or more as-built surveys during the course of a construction project to ensure work has been completed according to plan. An as-built survey is useful for spotting mistakes as they happen, rather than at the end of the project when they become more difficult and expensive to fix.