Contemporary Open Box House in Spain by A-Cero. A contemporary home has a solid stone structure located on the outskirts of Madrid. A house with a very unique shape designed by A-Cero. The house is called the Open Box. Open Box is a building made of concrete sand, inspired by a statue of Jorge Oteiza. The house has an area of 2600 square meters with the facility four bedrooms, living room, library, garage, kitchen, lawn garden area, swimming pool and a quarter of a servant. Some of the furniture that complements the interior of the house is also created by A-Cero. The house dominates the landscape and striking form.