Winning Project – New Prison in Lausanne

The jury of the architecture and engineering competition for the new Grands-Marais prison in Orbe voted in favour of the joint project of Hootsmans Architectuurbureau in Amsterdam and Hildebrand Studios in Zurich. The State Councillor in charge of the penitentiary sector, her counterpart in charge of State construction, the cantonal architect and the syndic of the Commune announced this morning in Orbe the results of this important competition and officially presented the winning project. It is composed of seven distinct buildings of medium volume, each organized around a generous inner courtyard and all connected by a clever longitudinal pavement. Adapted to a two-stage project and with a total budget of 279 million francs, this future establishment will increase the capacity of the Pôle pénitentiaire du Nord vaudois (PPNV) by 216 additional places from 2026 to eventually reach 410 detention places in a closed regime.

Chaired by the cantonal architect Emmanuel Ventura, the jury consisted of 13 members, including Sylvie Bula, Head of the Prison Service, Philippe Pont, Director General of Buildings and Heritage, and ticino architect Mario Botta.

hootsmans Architectuurbureau bv


Hager Partner AG landscape architects

WaltGalmarini AG


Künzler & Partners SA