Architecture studio Jordi Hidalgo Tané has extended a small stone building in rural Navarra, Spain, with a subterranean concrete annex accessed via a glass corridor.
The original building, called Landaburu Borda, sits close to the town of Bera and overlooks the surrounding landscape of the Navarra mountains.
In order to not disrupt this dramatic setting, the extension has been hidden under the adjacent hillside.
It houses a large living, dining and kitchen area and sits across from the original building.
