‘N°150’, L’Annexe, Paris


For its Rendez-vous #02 COSA, with Perrot Richard Architectes, presents in-situ the N°150 project: redevelopment of more than 20 000 sqm, avenue des Champs-Elysées, into a five-star hotel, shops and a cinema.

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‘4 mixed used building developments’, Pavillon de l’Arsenal, Paris


COSA’s 156 housing units in Saint-Ouen project, design with Pourquoi pas! architectes, is shown at the Pavillon de l’Arsenal during an exhibition about the RATP Group approach. The exhibition, will show 18 other projects for 4 consultations on mixed-use buildings (housing and maintenance workshops) by the RATP Group.

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Information on the exhibition


‘School and extra-school buildings, childhood centre’, Maison de l’Architecture de l’Isère, Grenoble


Grenoble Ernest Hareaux schools group, conceived by COSA was shown at the Maison de l’Architecture de l’Isère, during the Saisons d’Architecture. Competition for the J.Bruant schools group in Vaulnaveys le Haut, the Goncelin childhood centre, and the Villancourt schools group in Pont de Claix were also exhibited.

Information on the exhibition


Architectural engineering – COSA’s lecture at the ENSA Paris-Belleville


Invited by Mirco Tardio, along with Emeric Lambert – Parc architectes, Benjamin Colboc introduced COSA’s work to the ENSA Paris-Belleville HMONP applicants… From CFA first steps to today COSA’s architectural engineering orchestrating system, accident and materiality.



COSA presents at the DVVD’s’Causeries’ one angle of the office system : the no-design.

‘L’îlot Fourrière : redessiner le paysage du quartier Bacalan’, Agora Bordeaux


COSA, invited by Groupe Legendre, presented its hotel + para-hotel complex in the Bassin à Flot: a mixed program taking part in the ‘negotiated urbanism’ process led by ANMA, the city of Bordeaux and Bordeaux Métropole.

The Agora Bordeaux whole program