After years of developing the firm dl-a, Patrick Devanthéry, EPFL architect, FAS, SIA, co-founded
dl-c, designlab-construction sa in 2012 which was created as a general contracting firm. Two years later, he redirected activities towards architecture alone, in association with Thierry Décosterd and José Antonio Ramos. Together, building upon a basis of complimenting architectural sensitivity, they have completed numerous projects across Switzerland.

dl-c is able to complete all types of projects, whether they are new constructions, renovations or transformations. The firm handles all of the phases of an architectural project from the feasibility studies to the completion through to the submission and management of the site.

Kaedis sa founded in 2015, is a general contracting firm headed by Patrick Devanthéry, Thierry Décosterd et José Antonio Ramos. The company handles the build and manages the site direction and completion.

Our team of 20 includes a mixture of experienced architects who have extensive knowledge of architectural codes as well as a new generation who bring a fresh and novel approach to the firm. Together, they make up a mixed, diverse, dynamic and complimentary team who share the same values and work ethic.

Awards & Recognitions

Real Estate Awards 2016, 2016-09-13


Bilan Magazine, in partnership with the Swiss Association of the Real Estate Economy (SVIT), held its 5th edition of the Real Estate Awards at the Palais de l’Athénée in Geneva on 13th September 2016. Over 120 guests were in attendance including contractors and architects.
dl-c received the awards at this 5th edition both in the “VILLA” category for the Villa Passer in Lausanne and in the “ARCHITECTURAL HERITAGE” category for the Montagne Alternative in Commeire!

Meret Oppenheim Prize 2011, 2011-09-16

The Meret Oppenheim Prize is awarded annually to artists and architects as well as art and architecture mediators over the age of forty. The prize is awarded not only for the completion of an important piece but also for the harmony generated between the theoretical considerations and the creative production as well as current artistic or architectural trends. This year, this prestigious prize was awarded to Patrick Dévanthéry.

The book “Dévanthéry | Lamunière: images d’architecture | Deux entretiens” was published for this occasion.

Recent publications