The Casa Bielmann, or the Bielmann House, is a iconic look single family dwelling located in Santa Maria de Palautordera, Spain. Visually, it catches attention from passersby on the street for its uniquely blended materiality that makes it look, all at once, both solid and light or limitless.
All the while subtle solar panels installed on the roof keep the house powered with electricity in a way that is low impact on the surrounding environment. This also gives the house an electric network that is independent from its municipal power grid. Besides providing electricity, the roof also collects rain water. This is collected in a tank that is buried in the garden and used for irrigation there.
Photos by Jordi Miralles
Source: homedsgn.com
Charly W. Karl 
Buenas madrugadas en la Argentina, buenos días desde España,
Tengo que decir lo mismo que en el anterior Comentario sobre Aldea House.
Saludos cordiales