Natural birth is in a sense “in” – nobody wants to give birth in a clinically sterile atmosphere. Correspondingly, birthing centers are in demand, offering professional care in homely rooms. In a particularly attractive location on a hill at the edge of the forest overlooking the lake Sempachersee is the birthplace Terra Alta in Oberkirch. Dolmus Architects developed an extension. As with their simple family homes in Erlinsbach near Aarau, the Lucerne architects relied on simplicity and material authenticity to create a natural, quiet and, last but not least, homely atmosphere.