You can fit trailers for winter usage if you add better insulation for full-time living. The tiny housing community has a lot of info about this. Basically, peo

You can fit trailers for winter usage if you add better insulation for full-time living. The tiny housing community has a lot of info about this. Basically, people build their own small houses on trailers and choose a spot to live. The difference to RVs is the appearance (it actually looks like a house), and that they are fit also for winter climates. (Start here for example: http://thetinylife.com/ http://thetinylife.com/) You can move them, but people don't do it a lot. It seems to be quite cheap and fun to make them.