Diettert Collet is a Paris-based architecture and interior design studio founded by architects Emma Collet and Thomas Diettert.

Working across residential and commercial projects, the studio explores the dialogue between space, material and light, balancing restraint with character. Each project grows from its context. Volumes, textures and details are composed together to give every space its own atmosphere. Their approach draws on experiences in France and Japan, including time spent at Studio KO, Franklin Azzi, LVMH and M. Chiba in Tokyo. With a deep attention to materiality and craftsmanship, the studio creates refined, enduring spaces where function and identity go hand in hand.