Sisters Seher and Yasemin Yilmaz are building two summer houses on Björkö in Mälaren, Sweden. Yasemin Yilmaz, an architect, designed the houses to be angled toward each other with identical exteriors but different interiors. She emphasized using as non-toxic materials as possible, mixing clay and straw for construction.
Seher Yilmaz is working on installing the floor drain in the toilet. The project is featured in the final episode of the season of SVT's program Husdrömmar.