My RV is a four season. Fully insulated and the basement is heated for cold weather. My wife and I lived in ours for several months here in Florida while our house is being finished. There are a lot of people in my neighborhood that live in them all year. They stay down here in the winter and move to another property up north during the summer. Like
@Sinder, my RV stays here at my house. It lives in it's own garage when not in use. I have it hooked up to water, sewer and 50amp power. My entire subdivision is designed to accommodate Class A RVs. The simplest being just a parking pad up to a fully enclosed garage. All come with water, sewer and power.