"Impervious area" means any man-made area that significantly impedes or prevents natural infiltration of water into the soil, including roofs, buildings, streets, driveways, parking areas, and any concrete, asphalt, or compacted gravel surface.
"Living shoreline" has the same meaning as provided in § 28.2-104.1.
"Qualifying flood improvements" means flooding abatement, mitigation, or resiliency improvements that do not increase the size of any impervious area and are made either to qualifying structures or to land. For improvements made to land, the improvements must be made primarily for the benefit of one or more qualifying structures.
"Qualifying structure" means a structure that was completed prior to July 1, 2018, or a structure that was completed more than 10 years prior to the completion of the qualifying flood improvements.
Va. Code § 58.1-3228.1