This apartment is in an Oscar Niemeyer designed building in São Paulo, Brazil. Though it was originally a more traditional interior with blocks of rooms, a renovation by architects Felipe Hess & Renata Pedrosa turned the space into a contemporary and open loft.
Perhaps inspired by the Niemeyer building — Oscar Niemeyer is known for advancing the use of reinforced concrete in design — architects Felipe Hess & Renata Pedrosa added many concrete features to the "new" loft including shelving, benches, countertops and a kitchen table.
One of the more interesting features is the raw steel doors that can close off the bedroom from the rest of the apartment (picture 2).
For more images and architectural drawings see ArchDaily | Copan Apartment / Felipe Hess & Renata Pedrosa.
Images: Fran Parente