The Metro Council of Nashville and Davidson County has approved an ordinance updating the zoning code to enhance tree protection standards. The new regulations define 'Critical Root Zone' (CRZ) and 'Structural Root Zone' (SRZ) as key areas for tree stability and health. Developers must establish a Tree Protection Zone during construction to prevent mechanical injuries, soil compaction, and chemical damage. The ordinance prohibits trenching within the protection zone, mandates fencing for preservation, and enforces penalties of $50 per violation, per day, for damage or unauthorized tree removal. Additionally, the ordinance shifts the standard measurement for tree protection from the drip line to the CRZ and SRZ, aligning Nashville with peer cities like Atlanta, Denver, and Charlotte in urban forestry policies.
This ordinance strengthens Nashville’s tree preservation policies by ensuring trees are better protected during development. It helps mitigate urban heat, supports stormwater management, and promotes a sustainable urban tree canopy.