It basically means, before you start any sort of work you should check with the planning department that you dont require any planning or building warrant
take a photo of your current garage, attach a copy of that other image from nucrete, give planning an email with your street address so they can check things out and ask them if you need planning permission for what you want to do.
Also for the stuff with your tarmac drive, it will probably need to be ripped out and replaced with a concrete raft foundation / base so the garage doesn't sink.
No current garage - just a piece of tarmac which is my parking spot. I've asked the council and they are the biggest waste of space ever! £75 to give me an answer as to whether i need to pay more to apply for planning permission. i need to pay to ask basically.....
other people have garages so i know it can be done but people are very, very vague when all i want it a single answer. just trying to deal with everything in a logical manner.
If i had a garage already it would just be a simple swap and i wouldn't be asking on here. as it's a new build i've seen the hassle people have had from councils...