Protected trees
On existing detached single-family lots, only Heritage Trees are regulated. Trees become Heritage Trees above 20 inches in diameter at 4.5 feet, except Water Oak, Laurel Oak, Sweetgum, Slash Pine and Loblolly Pine, which become Heritage Trees at 30 inches. High Quality species (such as Live Oak, Southern Magnolia, Longleaf Pine, Bald Cypress and Pecan) are regulated anywhere on the lot; other Heritage Trees are regulated in the legal setback. In a planned development, trees in the approved landscape plan may be regulated at any size. Other land uses have their own rules.