What is a tree preservation plan?

A tree preservation plan is a site-specific document that identifies existing trees and details how they will be protected during construction or demolition work. In Westchester County, many towns and villages require property owners to submit this plan as part of the building permit process when work occurs on sites with mature trees or near protected tree canopy.

The plan typically includes:

• A survey showing the location, size, and species of trees to be retained
• Boundaries around tree root zones that will remain off-limits to equipment and storage
• Physical barriers such as fencing or signage to protect trunks and root systems
• Procedures for managing soil compaction, grading changes, and drainage near protected trees
• Specifications for any necessary pruning or removal, with licensed arborist involvement where required

Towns including New Rochelle, Scarsdale, and Bronxville enforce tree preservation requirements with varying strictness. Some municipalities prohibit removal of trees above a certain diameter without justification. Others require that a certified arborist prepare or sign off on the plan.

Tree preservation plans protect both the property owner and the municipality by preventing costly damage to mature trees that provide ecological value, storm water absorption, and property aesthetics. During construction, even minor damage to roots or bark can compromise tree health years later. A well-designed plan ensures that essential site work proceeds while trees survive undamaged.