An extension of a house in the locality of 's-Graveland is researched. The house has gone previously through other renovations and stands nowadays as commerce. The research involves to transform the building to living situation for a family with 2 kids incorporating the existing building to the historical sorroundings. With a concept of "a house into a house" is that the space inside the volume is reasearched in a free manner, the rooms are plan around the central void to optimized the space. Every room belongs to the singular space under the big roof. A new aperture towards the canal in the back plays also an important rol.