Final As-Built Survey As-Built Survey: An As-built survey shows improvements to the land as they exist at a particular point in time. As-built surveys are conducted several times throughout the duration of a construction project. Most municipalities require as-built surveys to verify that site improvements were made in accordance with approved plans. As-built surveys may be required for nearly every type of land project, from roadways to utility improvements and building construction. In addition to being required, as-built surveys are extremely valuable to property owners and their contractors. As-built surveys help property owners plan future projects, protect their interests, and document project progress. During the course of any construction project it is important to record and document all improvements as they are constructed. DMC Associates, Inc. maintain constant contact with site contractors to insure that all improvements are recorded and documented.