- Stock #365043 - Custom-built Houseboat ready for occupancy, or use it as an in-city Air BnB. Offered for sale is this custom-built Houseboat that is currently moored in downtown Providence. This Houseboat was professionally built on a steel barge and has a length of 30 feet and has ceilings that are 9 feet high. All steel beams and roof substructure make this boat strong. The inside space is the equivalent of a small studio apartment Including a separate bathroom which has the shower, toilet and vanity. The houseboat boasts a friendly front deck and a beautifully-made wooden staircase... read more