The Basic laws on back garden Developements in England and London

Question

I see 75% or more of the garden being used to add Buildings . I feel this is outragious as it is changing the character of the locality The add-ons are bigger than the main house . This is corruption on a large scale -how else could this be permitted .

Answer 1

Such as? Would this be a garden shed, conservatory or swimming pool? Planning permission needs to be granted for the latter 2. Can you be more specific please.