Because the owner-builder's grandmother had reached an age at which she was no longer able to cope with her household tasks alone, and the distance between the two homes was too big, the owner-builders decided to move into their grandmother's house to be able to guarantee that appropriate and effective help could be provided. As this house, situated in St. Valentin, did not in any way correspond with the requirements for two more residents, the decision was taken to extend it. Due to the elongated plot, rather than a further floor, a ground floor extension was suggested, which fulfilled all the required parameters. On the one hand, this would enable the grandmother to spend the last years of her life in a familiar environment, whilst on the other, to maintain her private sphere. The extension also enabled association outside. The extension was designed as a single-storey construction that combines the benefits of a hotel room with the advantages of the detached family house and functions as an independent building. Important parameters for the design of the layout included the course of the sun, the interior sequence of the room and the requirement for two private but different terraces. For these reasons, the building makes two changes of direction, on the corner of which we have the two terraces. The angles of change in direction are not random but were designed on the basis of the course of the sun, to guarantee optimum sunlight. The functional sequence of the interior rooms is also aligned with the terraces and the course of the sun. This means that the composition of the layout plan appears as a reflection of daily routine. The façades take "growing old with dignity" as their theme. The wooden sections have been given copper mesh cladding, providing a patina over time. The copper is combined with wood which goes grey when left to nature, as well as with concrete surfaces treated with brush finish.