I'm hoping that someone here has been through this recently and can advise. I'm assuming that I don't need to have an architect, but guessing that the plans should look approximately architectural. I was thinking of trying to knock them up with Sketchup, but what level of detail do I need to include and how accurate do all the components have to be? For example, do all the wall thicknesses and door widths have to be scaled accurately? I just want to hit the balance between making it all too laborious and having the application sent back, so any tips or experiences gratefully received.
There seems to be surprisingly little information publicly available on any of this, although I might not have hit the magic combination of words for Google.