The patio as the axis of a house. CB House by Alventosa Morell Arquitectes
14/07/2023.
[SABADELL] Spain
metalocus, ADELA BONAS
metalocus, ADELA BONAS
Architecture practice Alventosa Morell Arquitectes was commissioned to rehabilitate an old house in an urban context of narrow plots that front two streets in the center of the city of Sabadell, very close to Barcelona.
The building was kept in poor health conditions, covering an area of 104.65 m², with an atypical occupation in the urban fabric, located in the block patio of one of the plots, with a single 8 m front facing the street and its three dividing walls bordering the patios and garages of the neighboring buildings. In accordance with the regulations, the house can only be developed on the ground floor.
The building was kept in poor health conditions, covering an area of 104.65 m², with an atypical occupation in the urban fabric, located in the block patio of one of the plots, with a single 8 m front facing the street and its three dividing walls bordering the patios and garages of the neighboring buildings. In accordance with the regulations, the house can only be developed on the ground floor.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
Site Plan. Casa CB by Alventosa Morell Arquitectes.
Ground floor plan. Casa CB by Alventosa Morell Arquitectes.
Section plan. Casa CB by Alventosa Morell Arquitectes.
Section plan. Casa CB by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
Scheme. CB House by Alventosa Morell Arquitectes.
"Casa CB" designed by Alventosa Morell Arquitectes is a single-family house measuring 90 m² with a rectangular floor plan. To solve the important pathologies of the existing house, it was decided to move the existing patio towards the center of the house. The new central patio increases its dimensions and becomes the space that organizes the rest of the rooms.
Thanks to the glass roof of the patio, the interior temperature of the house is controlled, maintaining an annual demand of 19 kW/m² year. In winter, e is used as an interior space that stores energy thanks to solar radiation and the thermal inertia of the walls, and, in summer, it is transformed into a new outdoor terrace.
Structurally, the masonry walls were made with ceramic pieces fired with biomass and local cattle, which allow energy consumption to be reduced thanks to their high thermal inertia.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
Thanks to the glass roof of the patio, the interior temperature of the house is controlled, maintaining an annual demand of 19 kW/m² year. In winter, e is used as an interior space that stores energy thanks to solar radiation and the thermal inertia of the walls, and, in summer, it is transformed into a new outdoor terrace.
Structurally, the masonry walls were made with ceramic pieces fired with biomass and local cattle, which allow energy consumption to be reduced thanks to their high thermal inertia.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
Description of project by Alventosa Morell Arquitectes
The project consists of a renovation of an old house located in the center of Sabadell. It is a typical location of the city where we find narrow plots that face two streets. The neighborhood is characterized by small buildings touching each other. Most houses are two stories high.
The existing house occupies, atypically, the yard of one of the plots, with only an 8m frontage to the street. The house has only one facade and the rest of the boundaries border the patios and garages of the neighbouring buildings. By law, the house, of 90 sqm, can only be developed on the ground floor.
In addition to this limited space, the existing construction was made up of a vertical and horizontal structure with important pathologies that made its preservation unfeasible. Besides, the humidity due to capillarity and the lack of light and ventilation make the house a totally unhealthy place to live.
The starting point of our project has been to solve all these negative conditions. The solution is obtained from a single movement, the displacement of the existing patio in the center of the house.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
This new central courtyard increases its dimensions and becomes the space that organizes the rest of the rooms. At the same time, it provides light, air, radiation, and ventilation from its glass roof.
Thanks to this passive strategy, we control the interior temperature of the house, maintaining an annual demand of 19 kW/m² year, and we increase the possibilities of using the central courtyard. It becomes an interior space that stores energy thanks to solar radiation and the thermal inertia of the walls in winter and, in summer, it transforms into a new outdoor terrace.
So, in summary, from a central bioclimatic space, we not only solve the pre-existing unsanitary conditions but also create optimal conditions to enjoy a home protected from the noise and stress of a big city.
CB House by Alventosa Morell Arquitectes. Photograph by Adrià Goula.
Bioclimatic strategies and useful life of the building:
•Bioclimatic patio with greenhouse effect.
•Thermal inertia from the ceramic walls and the concrete floor slab.
•High thermal performance envelope.
•Controlled cross ventilation.
Strategies for reducing the ecological footprint:
•Wood is the main element in roofing, windows, and interior coverings.
•Walls made from ceramic pieces fired with biomass and local cattle.
•Cellulose isolation.
More information
Architects
Alventosa Morell Arquitectes. Lead architects.- Marc Alventosa + Xavier Morell.
Collaborators
Managment works.- Iñaki Gonzalez.
Structures design.- Diagonal Arquitectura, Eduard Simó.
Structures design.- Diagonal Arquitectura, Eduard Simó.
Area
GFA.- 104.65 sqm.
Dates
Construction completion year.- 2022.
Location
Sabadell, Barcelona, Spain.
Manufacturers
Wooden foriades.- Jesfer.
Patio glass cover.- Metalistería Metcor.
General installations, home automation.- Etecmia.
Wooden windows.- Fusteria Jaume Olivé S.L.
Interior furniture and wood finishes.- Ya Mobles.
Patio glass cover.- Metalistería Metcor.
General installations, home automation.- Etecmia.
Wooden windows.- Fusteria Jaume Olivé S.L.
Interior furniture and wood finishes.- Ya Mobles.
Photography
Arquitectes Alventosa Morell
Alventosa Morell Arquitectes are an architectural firm based in Barcelona and Lleida by Josep Ma. Alventosa Cuadrat, Marc Alventosa Zaidin and Xavier Morell Jané. They are specialize in projects and constructions based on efficient climate studies and thermal analysis. They provide energy savings of over 70%. They have experience in residential architecture, school, health, Hotel, restoration of listed buildings and managing budgets for optimal economic efficiency of the work.
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