Concealed behind a historic facade, this narrow residence by Barcelona architect Josep Ferrando is wedged between the party walls of a pair of houses in the Spanish city of Sant Cugat del Vallès (Barcelona).
The 225-square-metre residence fills a gap measuring less than six metres wide between two existing buildings.
The residence sits opposite the town's Medieval monastery. The historic facade of the original property was preserved, and the new concrete block was built behind.
"Located in the historical centre of Sant Cugat, a house between party walls is a project sensitive to the inhabitant and the city," said Ferrando.
"[It is] a fragment that fits with the complex urban conditions: the monastery, the cultural heritage of the street facade and the topography."
Due to a drop in ground level across the site, the living room is sunk below ground at the front but sits slightly above a garden at the back.
An atrium area with the living room provides an additional source of daylight for the kitchen and dining area above.
Three house-shaped volumes made from chipboard are suspended within the upper floors of the narrow building.
These timber pods enclose a child's bedroom, the family bathroom and a study that links with a roof terrace overlooking the garden. A pivoting flap opens or closes the child's bedroom to the atrium, offering views over the kitchen.
A network of timber shelves spreads across one wall of the residence, providing storage space for each of the levels and a visual link between the timber volumes.