A porthole offers a cheeky view into the shower cubicle of this Barcelona apartment, which Colombo and Serboli Architecture has revamped for one of its founders.

The Font 6 apartment is set within a 20th-century residential block close to Barcelona's renowned Sagrada Familia church and belongs to Andrea Serboli – the co-founder of Colombo and Serboli Architecture.
Finished with white walls and cement floors, the 75-square-metre apartment serves as a simple backdrop to Serboli's vast array of paintings and souvenirs gathered from trips abroad.

Upon purchase the home had been in a state of neglect, with many of its period features beyond repair. The architect was keen to transform it into a "quiet retreat full of emotionally charged objects", loosely inspired by a wunderkammer – the German term for a cabinet of curiosities.
"It was the perfect opportunity to develop a sample of the firm's style, and to find place for the great number of objects and memories that are part of [Serboli's] collection," the practice explained.

The focal point of the home, which was redesigned in collaboration with Margherita Serboli Arquitectura, is now the bathroom. The room sits inside a sea-blue timber volume that the practices constructed at the centre of the apartment's floor plan.
Its walls are painted peachy orange, complemented by similarly coloured grouting applied between the white floor tiles.
A circular opening, covered with fluted glass, has been c...