I can’t say I know a thing about permits…but another thing to consider is when YOU sell this place, your buyer pool might be limited since some people won’t want to deal with this neither.

If lack of permits is a problem, then I don’t think I’d ever want to waste my precious time on sorting any of it out.

It maybe the best addition or works really well, but a new buyer simply doesn’t care about that or the great memories in a house.