Architects Marie-Claude Hamelin and Loukas Yiacouvakis connected the home’s three levels in dramatic fashion. Ash treads float on a steel stringer from the ground floor to the mezzanine.  Photo 6 of 11 in La Colombière by Dwell from Growing Upward and Outward, a Cabin Expansion Mirrors the Trees

La Colombière

6 of 11

Architects Marie-Claude Hamelin and Loukas Yiacouvakis connected the home’s three levels in dramatic fashion. Ash treads float on a steel stringer from the ground floor to the mezzanine.