An ancient parking lot was divided into different apartments in the heart of Paris. To transform this raw surface into apartments, the project management wanted the structure to keep its industrial aspect. The main challenge was to take advantage of the unique light source: South-oriented and situated in one of the apartment’s angles. The idea was to compact the night area to benefit from a higher flexibility in the living space. Peripheral wood furniture, serving as library, kitchen, desk and storage, was made to create space and visual continuity in the whole apartment. A mobile wall can occasionally be used to host friends. The concrete beams and ceiling remain to keep the spirit of the place, while lessening the resonance thanks to a wooden slats-made false ceiling.