Family Houses Amselstrasse 7, Oberwil, Walderarchitects, Walder Architects, Walder, Martin Walder, Architects, Architects, Architekten, Arquitectes, Arquitectos, Architekt, Architect, Arquitecte, Arquitecto, Basel, Barcelona, Sabadell, Architektur, Architecture, Architectura, Concepts, Konzepte, Design, Architecture office, Architekturbüro