I've done six of those eight things.
I've done 5 of the eight. The plumbing one is BS, worst case you flood your house. The electrical makes more sense but anyone some a little bit of knowledge...
Alot of cities/states/whatever have the deck rule along with the finished basement/demoing walls. I think in my state if you change more than 10% of your floorplan, you need a permit. It's a money making racket that pretty much zero people follow.