I rent from the council and my back garden is seriously overgrown. I have repeatedly asked the council if they will cut it and they have refused,even after me offering to help with the cost.The question I have is if I decided to pay somebody to cut it down and sort it out would I need permission? I was thinking of maybe graveling most of it with maybe a small decked area for table/chairs. the decking would not be more than 25% of the garden size and the gravel would be removable if I ever leave so nothing would be permanent.