The license for my pond was taken care of by my pond builder here in east central IN. But after that I sheepishly have to say I never got a permit to build any thing else on my property. Maybe because I do it all my self and start slow (one post dug in at a time or footer started) not knowing if I will really build the project. However in the end I had a pole barn, upper & lower house deck, add on workout room, home built 12' satellite antenna and the pond deck house. No one ever said a thing, but it was added on my taxes as it should be. I have plans for a working 12 vote electric windmill that I got from Ireland where they actually use wind turbins for their houses. I would use this at the pond for electric aeration but I have trees there and may not be able to get the wind turbine high enough for wind efficiency. But solar/turbine combo is something to think about but with no permit.