Using one of these boat plans, you will be able to build the boat you have dreamed of for years. these boat plans come in many variations and there are powerboats. 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. Houseboat plans can give you a start in planning your houseboat building project. check out these free or low cost houseboat plans.