On a property outside of Madrid, you will find a lake, a large elegant garden and a produce & herb garden among solar panels on the roof of a home made of… concrete. I have seen concrete counter tops, floors and walls in modern homes, but rarely have I seen a home boasting head-to-toe concrete. It could feel cold and hard, like a prison, community college, parking garage or bomb shelter. But the result is surprisingly warm, feeling like slick slate sloping all around you – the modern, clean angles and open design flowing through huge windows to the green outdoors create a beautiful harmony to the home. Concrete House II is designed by the A-cero design firm, and this house isn’t my ultimate dream, but it’s no nightmare either. It’s actually incredibly stunning, as the pictures below will show.