The “La Rocío” residential building is a project by CRÜ. It is located on the outskirts of the historic working-class neighbourhood of Collblanc in Hospitalet de Llobregat, a city and municipality in the province of Barcelona.

The plot on which the building stands is irregular in shape and is situated between party walls. On this basis, a building aligned with the street is planned with an interior courtyard located after the space occupied by the building.

The architects used the maximum depth stipulated, making the most of the asymmetrical geometry of the site and complying with the creation of six dwellings that had been stipulated as a condition in the programme.
In terms of the formal aesthetics of the volume, CRÜ proposes a play of modules on both façades that differ in their composition. While the exterior façade is identified as a single block, the interior façade clearly shows two distinct blocks which are nevertheless unified by a vertical nucleus of stairs.

The appearance of the façades is characterised by a higher proportion of empty spaces than full ones. A reduction in the width of the windows is prioritised, giving a sensation of greater verticality and providing the opportunity to establish a unified window leaf. This compositional decision was taken with the intention of breaking with the modernist appearance that characterises the façades of Barcelona and the surrounding area.
 

Description of project by CRÜ

Located in Collblanc, a neighbourhood with a working-class memory and in buoyant effervescence in Hospitalet de Llobregat, La Rocio stands on an irregular plot between party walls located on a pedestrian street on the outskirts of the borrow, in the invisible boundary where Barcelona and Hospitalet merge.

The floor plan has perfectly square proportions (13.5 x 13.5 metres) as the result of literally applying the building depth allowed by the municipal planning regulations. With the defined perimeter and an assignment that required the fitting of 6 apartments in a maximum regulatory height of ground floor + 2, the math concluded in the insertion of 2 pass-through apartments per floor with a staircase placed perpendicular to the rear façade as an intermediate piece.

The placement of the vertical core in this interstitial position solved several classic problems of multi-family buildings: the night areas from both apartments are moved away, generating an air cavity between them and thus reducing noise pollution; and on the other hand, to give access to each apartment through a central point on the floor, avoiding marathonic circulations to reach all the rooms of the apartment.

Inside, only a 3 x 4.5 meter free-standing box is inserted, and fragmented transversely by two opposing gaps that give access to its interior from the lateral corridors. At a programmatic level, the box solves all the needs of a dwelling: it is placed on the floorplan in such a way that it clearly zones the day and night areas; and assumes the entire services program required in a home: kitchen, facilities, bathroom and storage.

The two facades are conceived as an intrepid and unapologetic review of the modernist façade that constitutes the vertical plane of Barcelona and its urban surroundings. The modernist canons are deformed in a width of the void greater than the solid, in a ratio of 1 is to ½. In addition, the classic width of the void is reduced to achieve a more vertical proportion of the opening, capable of being closed with single-leaf carpentry. A Mediterranean blue evenly stains the surface. The blue on the front façade recedes slightly in section and a whole floor in elevation in order to avoid contact with the street and to make room for a coarse plinth of hardened mortar.

This dark cobalt blue is also transferred inside to materialize the entrails of the box (its bathroom) and the false ceiling crowning it, aiming to obtain a continuous and total reading from the outside to the inside and vice versa. The flooring is finished with a traditional 40 x 40 cm terrazzo that homogeneously covers the floor. The last layer is some traditional blinds –also reversed– that act as lashes for the façade openings, drawing a subtle but constant dance with their flight.

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Architects
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CRÜ. Clàudia Raurell, Joan Astallé.
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Design team
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Clàudia Raurell, Joan Astallé. Anna Enrich, Alejandra Alonso, Lluís Salvatella. Structure.- Calmat S.L. Technical architecture.- Toledo & Villarreal. Facilities.- Quadrifoli Projectes S.L.
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Client
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AVNI Group S.L.
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Builder
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Construccions Rovian S.L.
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Area
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550 sqm.
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Budget
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€ 1,000,000.
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Dates
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2020-2021.
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Location
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Hospitalet de Llobregat, Barcelona, Spain.
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Photography
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CRÜ, an architectural studio founded in 2014, is the combination between Barcelona-based architects Clàudia Raurell and Joan Astallé. The studio emerges from the desire to give an alternative response to the architectural panorama that echoed in the middle of the crisis and ended with the orthodox way of reading the figure of the architect.

CRÜ is a critical exercise to respond to the new contexts provoked by the economic crisis, rethinking the relationship between the client, the work and the architect. The result is a thoughtful, accessible, sensitive and bold architecture that understands the parameters –both human and spatial– from which it is upheld.

Clàudia Raurell born in 1986 is a Catalan architect based in Barcelona. Graduated from the ETSALS in 2014, she co-founded CRÜ the same year. Her academic background relates her to the London Metropolitan University, where she was involved in an independent programme at the Architecture and Spatial Design Faculty from 2009 to 2010. Claudia has been consistently related to the academia, teaching 2nd and 4th year design modules in ETSALS from 2014 to 2016 and by giving lectures, panels and workshops.

Joan Astallé born in 1985 is a Catalan architect based in Barcelona. Graduated from the ETSALS in 2012, he collaborated with different architecture studios before co-founding CRÜ in 2014. In parallel to the studio work, Joan taught 2ond and 4th year students of architecture in ETSALS between 2014 and 2016. At the moment he combines the indoor work of the studio with lectures, panels and workshops in architecture and design schools.
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Published on: March 21, 2022
Cite: "Open composition of the facade. La Rocío by CRÜ" METALOCUS. Accessed
<http://www.metalocus.es/en/news/open-composition-facade-la-rocio-cru> ISSN 1139-6415
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