Look for an array of houseboat plans and kits so you can design your own floating home! search for small, multi-purpose houseboat plans and kits at bateau.. Houseboat plans on how to build your own houseboat, with free plans as a bonus.. Houseboat plans! build the houseboat of your dreams! above is a photo of our 16 foot long "aqua casa 16"! this boat is fully trailerable. you can take this boat.