5.—(1) All landscaping works must be carried out in accordance with the landscaping schemes approved under Requirement 4 and to a reasonable standard in accordance with the relevant recommendations of appropriate British Standards or other recognised codes of good practice unless otherwise approved in writing by the relevant planning authority.
(2) The landscaping works must be carried out in accordance with implementation timetables approved under Requirement 4 unless otherwise approved in writing by the relevant planning authority.
(3) If within a period of five years beginning with the date of the planting of any tree, tree whip or shrub that tree, tree whip or shrub, or any tree, tree whip or shrub planted in replacement for it, is removed, uprooted or destroyed or dies, or becomes, in the opinion of the relevant planning authority seriously damaged or defective, another tree, tree whip or shrub of the same species and size as that originally planted must be planted at the same place, unless otherwise approved in writing with the relevant planning authority.