I am in the process of planning something similar at my house. My county requires a land use permit for any new development, as well as a building permit becaus

I am in the process of planning something similar at my house. My county requires a land use permit for any new development, as well as a building permit because power will be run. Both of those permits require plans to be submitted and take multiple weeks to be approved. It’s worthwhile to check at your local planning office if you care about such things.