The rooftop swimming pool at Casa B, a concrete house in Malta, is visible from both the street and from inside the living space below.
Sicilian office Architrend Architecture designed the building to be inserted into a traditional terrace in the seaside town of St. Julian's.

The four-storey residence follows the same general arrangement of its more traditional neighbours, but is completely differentiated from them by its contemporary material palette and minimalist aesthetic.
It's top floor features a rooftop pool covered by a tall concrete frame, with a glass side that makes the water visible from street level.

"The house's main facade has a unified design. A double skin [is] formed by a totally glazed elevation covered with a system of sliding aluminium louvres and delineated by a frame of reinforced concrete," said the architecture studio. "This creates a fresh atmosphere inside the house and gives the building a special identity from the outside."

Casa B has a garage and home cinema on a basement level that is set back slightly from the street. An external concrete stair leads to an oversized wooden front door that opens into a double-height entrance lobby.
An opening in the lobby's ceiling provides a view of the underside of the rooftop pool, and the large void ensures a visual connection between the different floors.

Light pours into the living spaces through the huge glazed facade. A courtyard enclosed by glass walls also allows daylight t...