This beautiful home in Kona on the Big Island of Hawaii, is definitely a luxury residence. But besides being a spectacular architectural design, is actually very green. Kona Residence has been designed by Belzberg Architects, and is an incredible collection of recovered materials and energy efficient implementation. The residence is composed of reclaimed teak wood from an old barn, a set of railroad tracks trained abroad of the house, and a solar energy system that complements the collection of rainwater. Technology and sustainability were key issues in construction: the entrance to the pavilion was designed with 3D modeling software and CNC machinery built from reclaimed teak wood and railroad tracks. Moreover, the landscaping around the house uses lava rocks directly on the site, providing a beautiful contrast against the dark brown wood. In addition to the use of reclaimed wood, the residence pays special attention to their environmental impact. The pool was built with the same dark lava rock, and also provides water heating from the sun. The house has been designed around a central corridor that connects the rooms to the main room, media room, outdoor patio and master bedroom. And with a clear and open, and wide eaves of the roof, sliding doors and open windows, the house takes full advantage of natural breezes of the island, which keep the interior cool and comfortable. The residence has six bedrooms ecological and other luxury rooms built out of the aisle. The house also has two independent photovoltaic panels are mounted on the roof and together are capable of generating enough renewable energy to power the entire house. Finally, the design has been crowned with a collection system that collects rainwater water and directs it to three dry wells to replenish the aquifer. The outside area has been landscaped with lava rocks and native plants. The innovation of this design is the extensive use of recycled materials throughout.