Times have changed, but every municipality is different . Last time we were looking at doing an addition to our old house, the city only required elevation, floor, and a cross section plan (showing footing to roof), I drew all those myself. The city engineer signed off on it and as long as everything met the standard building codes they'd pass inspections on it. I did have to have a licensed carpenter doing the framing work in order to not submit further drawings, they seemed to trust the fact that those guys were licensed and knew what they were doing. Probably safer to do full drawings though, that way they've signed off on everything.
To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault