The GT3 House project by Bojaus studio is located in the Aravaca neighborhood and proposes how to make the best of the detached house and the blockhouse at the same time to propose a new type of housing.

The building develops a generic model of stacking houses in which each of them occupies the entire floor of the building. Each house moves and rotates from the position of the one below, generating a series of terraces that spiral upwards, avoiding looking down on the one immediately below.
In the project by Bojaus, the contact with the garden, consolidated with large trees on the plot, protects the terraces and interior open spaces both from the neighboring views and from the sun.

The structure of large beams allows each of the floors to be completely diaphanous, allowing the easy adaptation of the program. The walls, beams, and reinforced concrete slabs are exposed, leaving the image of the building to be that of the structural material itself.
 

Description of project by BOJAUS

Located in a suburban area of Madrid characterized by single-family houses, the 800 sqm. plot and urban regulations allowed the construction of three semi-detached houses. Instead of this, a three-story building with one house per floor is proposed. Compared to the characteristic semi-detached houses of the neighborhood, with small floor areas and organized in three and even four floors, this building alternatively proposes spacious houses organized on a single floor with large terraces,XL windows and a shared garden. Therefore circulation and server spaces are eliminated (stairs, corridors, distributors and foyers) and the entire surface is gained for living areas.

The project develops a generic model for house stacking in which each house occupies the entire floor of the building. Each house displaces and rotates from the position of the one below, generating a series of terraces that spiral up, avoiding from looking down the one immediately below. The communication core is fragmented into an elevator that passes through the houses and an exterior stair that surrounds them as it ascends. These two elements vary their position on the different floors due to displacements and rotations. Each house is therefore different. Although they all share the same typological scheme, they are adapted to their specific position within the complex.

The structure made of exposed concrete slabs and walls is solved without pillars or supports apart from the outer envelope. The outer case is therefore the whole structure, obtaining free plans of 13.5x13.5m. The walls, which constitute the facades, cover the span functioning as XL beams. These walls, that counterbalanced their direction on each floor like a house of cards, ensure the stability of the whole building. The slabs thus rest on their four sides (two supported and two hung from the walls of the upper floor). Two beams divide the plan into 3 bands and complete the structure. It is in fact the structure which, in addition to determining the spatial configuration of the terraces and the whole volume, determines the functional organization of the dwellings. The central strip delimited by the beams includes all the services, hiding mechanical facilities above a wooden technical ceiling. The two outer bands arrange bedrooms and living areas respectively, allowing concrete slabs to be released from ceilings and facilities, and recovering the whole 3m. height.

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Architects
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Bojaus.- Ignacio Senra, Elisa Sequeros. 
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Collaborators
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Architect.- Jorge Gabaldón. Technical Architect.- Ignacio Buzzanca. Structure.- Bernabéu Ingenieros. MEP.- Valladares.
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Area
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880 sqm.
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Budget
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Eur 1,000,000.
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Dates
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Project.- July 2018. Completion.- January 2021.
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Location
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Aravaca, Madrid, Spain.
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Photography
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Bojaus is an architecture studio founded by Ignacio Senra and Elisa Sequeros in 2012 and based in Madrid, committed to an architecture of excellence and at the same time everyday, at the service of both individual and collective well-being.

Themes such as sustainability, environmental impact, technical rigor and the future are intertwined in their work.

As a multidisciplinary studio, Bojaus brings together various professionals to guarantee quality in each project, regardless of its scale and complexity.

Since 2016 they have developed residential projects where they also act as developers and builders, following the same principles that govern their architectural practice. The value of this integration of functions has been recognized with awards such as the first COAM Award 2021 and the Hauser Award 2018.

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Published on: September 20, 2021
Cite:
metalocus, VALERIA OZUNA
"Stack, displace, rotate. GT3 House by Bojaus" METALOCUS. Accessed
<https://www.metalocus.es/en/news/stack-displace-rotate-gt3-house-bojaus> ISSN 1139-6415
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