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Lunar Base: Full Moon by unparelld'arquitectes

An outdoor room set in the face of a Catalonian volcano tracks the cycles of the sun and the moon

‘Our lived experience is the most important resource,’ say Eduard Callís and Guillem Moliner, co-founders of unparelld’arquitectes, the practice behind Full Moon – an outdoor room in a dark house built into the northern face of a volcano in Spain. ‘We collect observations, learning and experiences about things that inspire us; observed with a watchful attitude, without prejudice.’

This ethos is apparent in Full Moon, which expands the domestic space between the house and the mountain: a generous, ingenious opening
to the sky, the sun and the moon.  The new carved room, at the same size as the sitting room – approximately 18m2 – will be gradually covered by a grapevine. As any other room, it has doors and windows, and the main window opens up to a semicircular courtyard encircling a pond. In the day, the space increases by threefold the number of hours of sunlight in the main rooms of the house. At night, a curved arm supports a spherical lamp which moves over the outdoor room – at the semicircular opening it allows the courtyard to become a large reflector lamp. 

axo mm3

axo mm3


Callís and Moliner studied at Universitat Politècnica de Catalunya; Moliner teaches at the Olot School of Art, while Callís lectures at the schools of architecture in Girona and Barcelona. Both work from Olot, a small town surrounded by volcanoes in the north-east of Catalonia. Projects are focused on the domestic sphere and the public space, exploring the relationship between these two worlds: ‘We like to read issues and context as specific opportunities, using strategic operations in order to get large transformations with small interventions.’ 

Tellingly, the architects prefer working with design tools made by hand – such as models and hand drawing. ‘There is a kind of connection between the hand and the intuition, that sometimes overtakes reason.’ 

Full Moon

Architect: unparelld’arquitectes

Project team: Eduard Callís, Guillem Moliner, Jordi Moret, Jordi Collell, Dídac Franco

Structural engineer: Miquel Capdevila

Photographs: José Hevia