Becasue the current sysem is expensive and cumbersome. It interferes with homeowners freedoms, at great cost not only to planning applicant but maintaing the apparatus of planning controllers all round the country.
Streamline and simplify the planning process. The philosophy should be "Trust the homeowner to take decisions as to how to look after his own property. It is not the State's function to second guess."
Planning restrictions should be clear and understandable and PROPORTIONATE!
Specifically: there should be no requirement for planning permission in respect of remedial works which do not change the size or outline of unlisted buildings.
Generally: (and this is a big exercise, but so worthwhile: tear up the labyrinth of arcane and impenetrable rules surrounding the planning system and replace with laws which are clear and understandable.