Many home buyers demand loft-like spaces for maximum openness. The Querosene House in São Paulo, Brazil, designed by Brazilian architects grupoSP, takes that concept to a whole new level. It’s a three story block with an enormous and transparent open space. The north face side features a parallel free wall which houses a library containing 7,500 volumes. The design takes advantage from the difference between the street level and the lower level of the plot, by positioning the living room in this lower level, which creates privacy. This also helped to give occupants an optimal view of the outside landscape. The structure was also built with simple materials, such as masonry walls and reinforced concrete. Interior finished are also simple and include monolithic concrete flooring and white Portuguese Stone. The only surface that wasn’t covered in a simple finish was the wall of books.