Équerre d'argent 2014 Record checked on 26 October 2026.
RDAI
Architecture firm in Paris 2nd · founded in 1972
Formerly Rena Dumas Architecture Intérieure
Overview
RDAI is a Paris practice of architecture, interior architecture and design, founded in 1972 by Rena Dumas and now led by Denis Montel and Julia Capp from rue du Mail. It is known for its long collaboration with Hermès, from the brand's stores in Paris, Seoul and New York to the Cité des métiers in Pantin, which won the 2014 Équerre d'argent. The firm employs about 100 people and also works on hotels, housing and workplaces, with a subsidiary in Hong Kong.
- Founded
- 1972
- Team
- ≈ 100
- Projects
- 7
- Awards
- 1
Founded in 1972 by Rena Dumas as Rena Dumas Architecture Intérieure; RDAI-Architecture was set up in 2007.
Other offices: Hong Kong
Partners and founders
Denis MontelManaging and Artistic Director
Julia CappCo-director / Architect
Sandrine BrekkePresident of the company (SAS)
Rena DumasFounder (died 2009)
Fields of work
Retail architecture · Interior architecture · Hotels and residential · Workshops and workplaces · Furniture and object design
Built work
Hermès Madison Avenue
New York, United States · Flagship storeLes Bains hotel
Paris · HotelCité des métiers Hermès
Pantin · Craft workshops and officesHermès Rive Gauche (former Lutetia swimming pool)
Paris · Store in a listed buildingMaison Hermès Dosan Park
Seoul, South Korea · Flagship storeMaison Hermès Ginza (with Renzo Piano Building Workshop)
Tokyo, Japan · Flagship storePrizes and awards
- 2014Équerre d'argent (Cité des métiers Hermès, Pantin)
Frequently asked questions
Where is RDAI based?
The firm's address is 13 rue du Mail, 75002 Paris.
When was RDAI founded?
It was founded in 1972.
How can I contact RDAI?
You can reach the firm by phone on +33 1 42 60 04 82, by email at rdai@rdai.fr and through its website rdai.fr.
What are the main projects of RDAI?
Its built work includes Maison Hermès New Bond Street (with Foster + Partners) (London, United Kingdom, 2026), Hermès Madison Avenue (New York, United States, 2022) and Les Bains hotel (Paris, 2015).