Mesnil Architectures

Mesnil Architectures was founded in 2022 by Antonin Bohl, Mathias Lefebvre, and Arthur Schmitt, operating from two offices located in Paris (10 rue de la Mare, 75020) and Chatellerault (10 rue de la Bastille, 86100). The three founding principals are united by a shared attentiveness to the built environment and a sustained curiosity toward existing structures, forming the foundation of the practice's distinctive methodological approach.

The practice focuses on rehabilitation, extension, and new-build commissions, consistently engaging with questions of tectonic logic, programme, and long-term material durability. Its professional position aligns closely with the rehabilitation-first principles embedded in France's 1977 Architecture Act, advocating for the reuse, repair, and adaptive transformation of existing fabric as a normative mode of architectural production rather than a marginal alternative.

In 2024, the firm was selected for the Echelle Un incubator at the Ecole d'Architecture de la Ville et des Territoires Paris-Est, a programme dedicated to supporting emerging architectural practices in France, affirming the studio's growing recognition within the French and international architectural community. Founded only three years prior, Mesnil Architectures has already established a clear critical position in the field of architectural rehabilitation and material ethics, with projects including LARUNS attracting sustained attention across international architectural media.