I know of a nice little home built less then three years ago, three bedroom & (?) baths with full basement and a buggy house with loft. Realtor says the place is fully wired to the utility boxes with a 200 amp panel (no breakers), no meter box but ready for electrical service to be installed from the pole (across the road). I honestly don't know if there is plumbing to or in the house. It's a nice looking place from the outside and comes with fully functional cloths drying line just off the front porch. There is no land, other than the lot the home sits on so the occupants had to find other work which was logging and sawyers. Apparently with only one stationary mill and three portable mills operating in the area there was not enough work available so the family pulled out, leaving the home empty. I hear, this family was part of a 6 family clan, all leaving the area.
As for permits and inspections, I can't say if the builder (Amish I would imagine) needed to apply for either. I do know in my humble little Twp, no permit is required provided a structure falls below so many sq. ft. and I suppose with no plumbing and electric there would be no need for inspection.
There's not a trip to town when my wife will say "look another barn" and I will chuckle and say yep, Jesus was a carpenter and thus is every Amish man so they build, and when they finish building they begin building something else.
Land value did increase in my area being there is no vacant land for sale, as when it becomes available, the Amish or a English grain farmer is gonna scoff it up. Yes even swamp land, if there is enough area to build a house and pasture a horse and it don't need to be on the same side of the swamp. Hay is beginning to become a commodity worth cutting, most tillable fields are used for crops such as corn and soybean.
So long story short, other than the Amish can clean out a lake of it's fish, or completely eradicate an area of it's stupid white tailed deer, in addition to giving away all the organic fertilizer one might use (of course you must shovel it from the road in front of your house (but the shipping is always FREE!)) I would recommend purchasing a residence in or near a Amish community but only after, I learned of the builder, wired or not.