This eco friendly beach house by Robles Arquitectos converts the typical beach home into a lesson in eco architecture. If not for any other reason, this lush location – Peninsula de Osa in Costa Rica, which claims five percent of the world’s biodiversity – has inspired an approach to eco friendly house design, construction and life. Endless beach views invited the architect to incorporate many balconies, sliding-glass walls and outdoor entertaining areas, blurring the boundary between indoors and out. In this eco house design, the architecture firm put their enviro-architecture theory, SDRA (Dynamic System Robles Arquitectos) to use, evaluating 10 factors including climate, energy, water, materials, environment, atmosphere, cost, innovation and passive methods of design and construction. This house, which is secluded about 30 minutes from the nearest town, is 100 percent self-sufficient, proving it is possible to live off the grid and on a level plane with some of the most stylish, luxuriously appointed homes out there.