Since the mid-nineties, Lamarche has made work which has its roots in the imagination, as varied as urbanism, science fiction, cinema, cabaret or climatic events, questioning notions of scale and modelling, movement and temporality. His work, conceived as installations, sculptures, videos or performances, provides the viewers with an experience which is both conceptual and ecstatic, drawing on several emblematic figures that he has been working on for almost 20 years.

He uses the city of Nancy as the model for fantasy architecture, the singer Kate Bush as an icon, or the whirlpool as entropic.

He is represented by Galerie Jérôme Poggi, Paris.