A grass-covered strip of at least seven (7) feet in width and planted with trees spaced at intervals of not more than thirty-five (35) feet on centers and at an initial height of at least eight (8) feet shall be provided and maintained on each developed property in a location between the sidewalk (where one exists) and the curb or pavement edge of the adjacent public road. This requirement is supplemented by the requirements of Sections 1131.04(b), 1131.05 and Street Tree Ordinances of the Village of Highland Hills.