The removal of a person's private property without compensation has been illegal forever, except as a temporary measure in wartime.
There is no justification that can allow the removal of a privately owned piece of grazing, or ploughland, or private beach of a residence or hotel, without at least some compensation. This compensation should bedecided by a Court or an independant tribunal, not the body doing the compensating. This Act legitimises theft.
And why 4 metres? Whose idea was that? How long before we have 4WD buses grinding round the coast?
This is another case of a "good idea" ( to be able to walk all round the coast) resulting in brutal, bad and probably counter-productive Law.
What price a footpath with buses running down it?