There is probably a minimum size which would be legal where you are. Build the shed on RR ties so it's not a permanent building ,& a 1 hole out house . 1 room 10'x12' & a 6'x10' deck on the front all the same floor framed on top of the leveled RR ties. . Hide it in the woods & don't tell on yourself. Ours is about a 1/2 mile in. This was built on advice from the local tax assessor. jmo.