A Zoning Permit for development under regulations of this District shall not be issued unless a plan, required by Section 1143.02(l), has been submitted to the Village indicating that the following landscaping requirements will be met.
(a) General. All portions of a lot not used for permitted structures, parking areas, driveways or walkways shall be properly planted with grass or other suitable vegetative ground cover and shall be maintained in good condition.
(b) Tree Lawn. A strip of grass-covered land at least seven (7) feet in width, known as the tree lawn, shall be reserved in a location between the roadway curb and the sidewalk adjacent to each lot.
(c) Existing Vegetation. In the development of new dwellings, existing trees and other significant vegetation shall be retained, wherever feasible.
(d) Street Trees. Trees shall be planted so that for every lot there is at least one tree on each tree lawn abutting a street. The minimum diameter of such trees shall be one and one-half (1 and 1/2) inches at six (6) inches above ground level. The requirement for tree-plantings on tree lawns shall not be applied to lots on which an existing mature tree is so situated in a yard that it would impede the eventual growth of a tree located on the tree lawn. Trees which have such undesirable characteristics as excessively thick foliage, low branches, unpleasant odors, susceptibility to disease or large root systems shall not be planted on the tree lawn nor in any yard area within ten (10) feet of the street right-of-way line. Examples of such trees are Poplar, Willow, Cottonwood, American Elm, nut and fruit trees, Ailanthus, Mountain Ash and Oregon Maple.
(e) Lots Abutting Arterial Roads of Freeways. For lots in which a rear or side yard abuts an arterial road or freeway, as designated by the County Engineer, a vegetative barrier shall be planted along the affected lot line. Such visual barrier may consist of either a dense row of evergreen trees, a continuous strip of high shrubbery, at least six feet in height at maturity, or a combination of low shrubbery and trees which together form a continuous visual barrier. The barrier selected shall be one which is effective in the particular application.