Yes, with the right house boat plans, you can start building your own now yes, with house boat plans, you can build a houseboat. when it comes to planning building a. "coolwater" – a $70 shanty boat!! well, maybe it might cost a little more in today’s money. these plans even detail how to make a built in wooden bilge pump!. 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.