Clause 25

When any structure or valuable tree or plant is reduced in height or removed or any expense is reasonably incurred in compliance with any order or the conditions of any order, the owner or occupier of the land shall, unless such structure was erected or such tree or plant was planted in contravention of any order or of the conditions imposed thereby, receive compensation to the extent to which he has suffered damage by reason of such reduction or removal or has incurred such expense.