Mountain Retreat Þjórsárdalur is conceived as a destination hotel and bathing retreat located at the edge of the Icelandic highlands, approximately 1.5 hours from Reykjavík. The project brings together accommodation, wellness facilities, and shared spaces within a cohesive architectural framework that responds directly to the site’s history and conditions.

Set within the Þjórsárdalur valley, the project is deeply rooted in its context. Once home to early Icelandic settlements, the valley was abandoned following the eruption of Hekla in 1104, leaving behind a layered landscape shaped by volcanic activity. The surrounding mountains display distinct strata of dark and light pumice and rhyolite, while expansive views open toward the south across the valley.

The design concept emerges from a close reading of both geology and vernacular building traditions. Inspired by the logic of Icelandic turf houses, the building is not conceived as a single volume but as a series of smaller, interconnected units embedded within the slope. This fragmented approach allows the architecture to follow the terrain while reducing its visual impact. Excavation of the site revealed layers of volcanic ash, informing a strategy where parts of the building are carved into the earth and these geological formations are exposed within the interior spaces.

The program is distributed vertically within the terrain. Bathing facilities and outdoor pools are located on the lower level, while restaurant and staff areas occupy the middle level. The upper level accommodates the lobby, library, and activity spaces, with 40 hotel rooms and suites distributed throughout. Only selected volumes emerge above ground, bringing daylight into the interior while maintaining a strong sense of shelter.

Material strategies reinforce the integration with the landscape. Excavated material is reused to cover the building, while robust construction responds to the harsh climate.