Where I am, the ag exemption barely blunts the taxes. You can claim the exemption on the land on which your house does not sit, but the house itself and the 1 acre around it is not exempt. Anywhere near a major population center, a house + 1 acre can be thousands, if not tens of thousands, per year in property taxes.
Ag exemptions vary, but it usually ends up that you still owe a significant amount. Usually it's something like you get a break on the tax on the land/barn/etc,but still owe all or most of the amount on the house.
Where I am, the ag exemption barely blunts the taxes. You can claim the exemption on the land on which your house does not sit, but the house itself and the 1 acre around it is not exempt. Anywhere near a major population center, a house + 1 acre can be thousands, if not tens of thousands, per year in property taxes.