Personal Architecture transformed a traditional, early twentieth-century Rotterdam penthouse into a contemporary apartment —complete with a wellness spa and rooftop deck for entertaining.

The main living space and two of the bedrooms are located on the second level of the building. Living and dining areas are divided by walls with integrated storage units. “Voids in the load-bearing interior walls create circulation in the floor plans and connect the living spaces,” the architects said.

A white and gray color palette is accompanied by modern furnishings and unique touches. A stairway leads up to the fourth floor bedroom which features a large bed with a headboard made of American oak. This level also accommodates a generously-sized bathtub, a steam room and sauna with a panoramic view.

The highlight of this conversion is the rooftop deck, where the residents can enjoy the Rotterdam skyline from a whirlpool bath. This entertaining space is surrounded by low-built containers filled with green moss and various plants. [Photography by Ossip van Duivenbode]

Would you add a wellness spa to your home?