Atelier 3 au Carré is an interior architecture studio based in Paris, dedicated to managing residential and commercial projects.

A graduate in spatial design from École Boulle, Sandrine founded Atelier 3 au Carré to share her sensibility and her way of rethinking spaces.
She designs warm, well-proportioned interiors that reflect the people who live in them — from the first sketch to site supervision.
The studio handles the entire assignment: survey and assessment, sketch design, preliminary design, planning applications, contractor tendering, works supervision and handover. Every decision is documented and explained to the client.

A project by the studio — Cardinet Apartment, Paris 17th.