Extracted standards
4 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Other
- Maximum grade change within 1.5x dripline6 inches
Finished grade within an area 1.5 times the diameter of the dripline of trees to be saved shall not be six inches higher or lower than the existing ground elevation
- Minimum distance from imperviousImpervious coverageThe share of a lot covered by anything water cannot soak through — roofs, drives, patios. surface to retained tree12.5 ft
No impervious surface may be located within 12.5 feet of any tree to be retained
- Replacement trees for destroyed canopy300 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000. per replacement set
replace such trees with one large tree four inches in caliper and one small tree six to eight feet in height for every 300 square feet of canopy area destroyed
Parking
- Parking reduction for tree preservation15 pct
the number of parking spaces required may be reduced by up to 15 percent
From the ordinance
No impervious surface may be located within 12.5 feet of any tree to be retained... replacement: one large tree four inches in caliper and one small tree six to eight feet in height for every 300 square feet of canopy area destroyed.