We are in the beginning process of building a campground. We will have full hook up sites, but since this will be in upstate NY, we also have seasonal sites RV's that will need to have water shut off in the winter. Couple ideas are to have individual stalls, accessible from the outside with a key/key pad to get into. Has shower, toliet, & sink. Or 2. Walk in and have stalls in there. Stalls for showers and stalls for toilets. Then just pick a stall. This is probably the most common one. We do plan on having radiant heat in the floor and our utilities (hot water heater, etc) also in this building. Any thoughts or suggestions for building a very user friendly bathhouse?