The harbour of Scheveningen was originally a fishing harbour. In the course of time fishery declined in importance and so did the companies. As a result, many old warehouses in the Second Harbour became redundant and are now due for demolition.At the same time, there is a large demand for building ground in this area. By renovating the warehouses into new office space and placing steel penthouses on their rooftops, the harbour is given a new input. The construction comprises a frame of hot-rolled sections with a lightweight panel filling. The penthouse was to be used as a home/office and/or studio and consists of a single space occupying both storeys. Rooms like bath- and bedroom can be partitioned off by sliding partitions. The residents must be able to look out from the bath over the empty space and see the sea, and once they were out of the bath they must be able to follow different routes through the house.