Building modern and elegant homes don’t need to be big, expensive, and of first hand materials. Built in Jakarta Indonesia by SUB Studio, the Grey House is a small 108 square meter house that was built at a tight budget of $15,000. The architects have successfully built the house by exploring the materials and reducing unnecessary thing. They have designed the roof in a single slope direction to avoid any metal joint as they are using the metal roofing to cut cost. Used for the window frames in this house are recycled wood. The house also has the exterior fence that becomes a medium for living walls and the vegetation replace a chemical finishes. Wall surface for interior sides of the houses uses a grey brick 200x200mm module to lower cost and get smooth finish.