Some structural alterations, like deepening the basement and extending a small house on a dyke near Amsterdam with a transparent volume, results in a luxurious usable space with a balanced plan.

The interventions keep the typical character of the old house intact. Two of the former exterior walls are now inside the house, the rough texture of their surfaces retained. On the ground level, the facade of structural glazing of the extension functions as a second shell. The theme of adding shells will be continued in the layout of the garden.