Amends GS 160D-601, which prohibits any amendment to zoning regulations or a zoning map that down-zones property from being initiated, enacted, or enforced without the written consent of all property owners whose property is the subject of the down-zoning amendment. Adds that designating a historic district by zoning regulation under GS is not deemed "down-zoning" for the purposes of this statute. Applicable to Mecklenburg County only. Applies retroactively to December 11, 2024.