Do you need a building permit for a horse shed if you are zoned agricultural?

Depending as to what state you live in, the general answer is no. Areas zoned agriculture have different building regulations than a property that is zoned residentiol or commercial. Where I live, and I am zoned agriculture also, the only permit I am required to have is a convayence permit. This permit requires me to build according to the covnents that were set up by the developer and county planners. There are no inspections unless it is by the electrical inspector. This is a state requirement that cannot be changed by city or county governments.