Two apartments in one, that was the request of this family, whose parents wanted to keep a pied à terre in Paris while creating an independent space for their child, living as a couple. The duplex, linked by the staircase of the private building, was therefore split in two. Downstairs, a classic, light-filled apartment, laid out as a comfortable suite, and upstairs, a bohemian dovecote under the roofs. Photos © Pauline Le Goff