The former cooperative store in the village Karwe outside of Berlin is transformed into a holiday house.
A transparent layer wraps the old concrete element of which all existing walls are preserved. All basic functions such as bedrooms, bathroom and kitchen are placed in the coop. The surrounding layer offers additional space with no set function.
This way the house can shrink and grow according to the number of family members and guests using the house, the time of the day, and the seasons. The garden is placed on the roof, the only place to enjoy a view to the nearby lake.