Architecture practice Arqbag has projected Casa en Cervelló, a house located, as its name suggests, in the municipality of Cervelló, in the Barcelona metropolitan area. The plot has a steep slope, which presents a construction challenge but also an advantage in terms of climate control.

This single-family home is composed of two volumes that descend the plot, connecting the different levels of the terrain. The entrance from the street is located at the top, and the garden and orchard are at the bottom.

The house in Cervelló, designed by Arqba, features a diverse range of spaces distributed across a lower level connected to the ground and an orchard. The kitchen and living area are linked to the outdoors by a small pond, barbecue, and a separate study. The bedrooms are located on the upper floor with a mezzanine.

The walls of the main volumes are composed of a layer of lightweight ceramic blocks and a glazed atrium where a wood-burning stove is located. These design elements, along with the building's volume adapted to the terrain and climate, result in a project that maximizes energy efficiency and reduces construction and maintenance costs.

House in Cervelló by Arqbag. Photograph by Marc Díaz.

House in Cervelló by Arqbag. Photograph by Marc Díaz.

Project description by Arqba

We are working with a steep plot where a construction challenge can be a benefit for climate control, using the land’s inertia and height to capture radiation and fresh air.

This single-family home is designed in two volumes, which are arranged down the slope, connecting the different levels of the surrounding terrain. The entrance is at the higher level, while the garden and vegetable garden are at the lower level. These areas are connected by a glazed atrium, which resolves the communications and regulates the temperature and ventilation of the two volumes.

House in Cervelló by Arqbag. Photograph by Marc Díaz.
House in Cervelló by Arqbag. Photograph by Marc Díaz.

The skin of the main volumes is made from a single layer of lightweight ceramic block, providing sufficient thermal mass and insulation. This is activated through the atrium, which captures radiation in winter and includes a wood stove to distribute heat to the rest of the house. In the summer, the atrium acts as a ventilation chimney, ensuring passive comfort in all living spaces connected to this central area, which also serves as a versatile meeting and rest space.

The result is a home that operates in a completely passive manner, with a wide variety of spaces. These are spread across a central level with the kitchen and living areas, linked to an exterior featuring a small pond, barbecue, and a segregated study. Below, there is a lower floor connected to the land and vegetable garden, while above, there is an upper floor with a loft area where the bedrooms are located, in a privileged space that offers both views and privacy.

Casa en Cervelló por Arqbag. Fotografía por Júlia Dubois.
House in Cervelló by Arqbag. Photograph by Júlia Dubois.

By reducing the layers of the exterior and designing a volume that adapts to the land and climate, the project achieves maximum efficiency and reduces construction, maintenance, and daily costs for the family.

More information

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Architects
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Collaborators
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Structures.- BBG Estructures.
Agronomist.- Guillem de Pablo.
Building Engineer.- Emilio Sanchiz.

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Client
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Private.

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Area
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186 sqm.

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Dates
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2024.

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Location
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Cervelló, Barcelona, Spain. 

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Photography
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Júlia Dubois, Marc Díaz.

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Arqbag is a young architecture practice that began its activity in Barcelona, in 2013, and was formalized as a non-profit cooperative in 2017. From the beginning they have maintained a strong bond with the ETSAV - UPC university, establishing their workspace in the same campus where they study.

It is an architecture cooperative that promotes new models of the relationship between people, habitability, and territory, understanding architecture as the transversal management of energy, environmental, economic, and social resources, highlighting and valuing "the process" and not just "the result."
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Published on: March 26, 2026
Cite:
metalocus, SARA GENT, ELVIRA PARÍS FERNÁNDEZ
"Growth on slope. House in Cervelló by Arqbag" METALOCUS. Accessed
<https://www.metalocus.es/en/news/growth-slope-house-cervello-arqbag> ISSN 1139-6415
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