Services and team

The agency takes charge of architectural, urban and territorial project management, according to the request of its clients and the objective of the project. It ensures the success of the project in the study phase and in implementation. Since its creation, Rethink has enjoyed the trust of many project owners and the agency continues to work on ever more complex and exciting orders with the objective of the ecological transition.

Our Parisian offices are located at Le Soft in Ivry-sur-Seine. The association Le Soft deals with the exploitation and rehabilitation of an urban wasteland for cultural production purposes under agreement with Sadev 94 and the town hall of Ivry-sur-Seine. We share space and ideas with artists, craftsmen, architects, decorators, video producers…

Leading team

Christian HORN, architect-urban planner (Dipl.-Ing.)
Graduated in 1998 at Technical University of Aix-la-Chapelle – Germany
Prize winner of the French young urban planners’ award 2007/08
Registered at the Chamber of French Architects and at the Chamber of German Architects
Teacher at the School of Architecture of Strasbourg – France

He obtained a degree at the Technical University of Aachen in architecture and urban planning in 1998. Parallel to his activities within his agency, he teaches at the School of architecture in Strasbourg and regularly publishes texts and articles in various international architecture and urban planning media. Since 2005 he joined the International Workshops Urban Project management, or it becomes a member of the Steering Scientific Committee and a pilot workshop in Vitoria, Brazil in 2009, and La Défense / Paris in 2011. He is involved as an expert in the EcoQuartiers competition of the French government and different competition jury and seminars in France and abroad. The regular interventions in workshops, seminars and intercultural conferences offer the opportunity to question and exchange on thoughts and approaches about our built environment.


Collaborateurs - E KOS

Erika KOS, architect DE
Technician, construction economics

Erika is graduated from Ecole Nationale Supérieure d’Architecture of Paris Val-de-Seine in 2021. In 2022, she obtained the title of Technician in construction economics at the La Martinière Monplaisir high school in Lyon. It turns to approaches of repair, rehabilitation and transformation of the existing on an architectural and urban scale. It is particularly sensitive to the themes of comfort, biodiversity and global economy (energy, carbon, resources, finances, etc.) through the use of bio-sourced, geo-sourced and reused materials.


Project teams since 2002

According to the requirements of each project, we set up project teams with others professionals (engineers, town planners, landscape designers, graphic designers…) who bring in their complementary knowledge and experience in the project. It is our objective to work in a flexible and performing network with dynamic and qualified professionals in France and international.

AID Observatoire, commercial urbanism – Villeurbanne / France
Aleksandra ADRYANSKA, architect – Lyon / France
Alexandre ANDREASSIAN, architect – Choisy-le-Roi / France
Olivier BAERT, landscape designer – Paris / France
Philippe BUISSON, landscape designer – Paris / France
COTEBA, engineers – La Plaine Saint-Denis / France
FORS, social research – France
HTC, housing and social project – France
INEX, building engineers – Paris / France
ITEM, mobility planning – Paris / France
Bernhard LENZ, architect – Karlsruhe / Germany
LGX, building engineers – Paris / France
Bettina MAU, architect – Paris / France
Orénoque, project management – Paris / Frankreich
OGE, ecologists – Saint-Maur-des-Fossés / France
Lionel PENISSON<, architect – Choisy-le-Roi / France
REMY Consultant, private habitat – Paris / France
RFR, engineers structure and building envelope – Paris / France
SNC Lavalin, engineers – Ivry-sur-Seine / France
Atelier TALAGRAND, landscape architect and town planner– France
Transitec, transport engineers – France
TRIOG, agronomy – La Rochette / France

International partnerships

7HS – Karun KUMBERA, architects and town planners – Bangalore / India
Building Design Partnership (BDP) – England
Alex CHENG – Z-Work, architecture and design – Taichung / Taiwan
ekdnyc, Eric K. Daniels, Architect, PC – New York / USA
Labgrad, research department for transport and mobility – Saint-Petersburg / Russia


Our office employs architects and urban planners with interest and curiosity. The knowledge of a second language (French, English, German) is necessary. The office wants to keep a friendly work environment and a real teamwork.

> Unfortunately we do not have any vacancies at present


Regularly we are looking for students in master or post-graduate training for an internship (internship agreement is mandatory) on full-time or part-time basis for min. 3 months to work on urban and architecture projects in France and internationally.
The work concerns the involvement in the projects, but also in research, publications and daily management of the agency. We are sharing the office space with an office of landscape design and all projects are done in collaboration with architects, planners, landscape, engineering firms and other professionals.

Requirements: 2D/3D drawing (Autocad 2D, SketchUp, 3DS max…), graphics, paging, website maintenance, research, realisation of models and especially an attention on details and attentive work. A good knowledge of the French language is necessary and other foreign languages are welcome.


You can send us on e-mail your references ( resume, portfolio..) and availability at: office(at)