World renowned architect, Kengo Kuma has designed the Green Cast House, an eco green building design that features a curtain wall-like cladding that funtions as a huge green wall. This building, located in Odawara-shi, Kanagawa Prefecture, Japan is covered with planters made of aluminum die-cast panels, which provides space for facilities. The 3 (up to 6) aluminum panels, which also form planters, are made in monoblock casting. Each panel is slanted, and its surface appears to be organic, of which cast comes from decayed styrene foam. Equipment such as watering hose, air reservoir for ventilation and downpipes are installed behind the panels so that the façade can accommodate a comprehensive system for the building.