This document proposes a floating house eco-project built from water bottles. It describes how water bottles can provide buoyancy to allow a house represented by a box to float. Calculations show that one water bottle holds about 1.2 pounds of buoyancy, as it contains 16.9 mL of air that can support 1.12 ounces per mL, totaling about 19 ounces of weight. Inventor drawings are included to represent the proposed floating house design.