Alventosa Morell Arquitectes form a house on a steep, rocky site
Nestled within a pine forest on the coast of Tarragona, Spain, Casa CLO by Alventosa Morell Arquitectes is a lightweight timber house that gently steps down a steep, rocky site. The structure sits on a sloping plot, adapting to the topography and existing wood to create comfortable living spaces among the tree canopies. The site has rocky ground and a very steep slope, with access only from its lowest point. From the highest part of the site, the sea can be glimpsed in the distance, filtered through the pine forest. The clients, a family from Barcelona, acquired this plot to build their second home, with the intention of gradually spending more time in the tranquillity of the forest and close to the sea. They were looking for a house that could engage with its surroundings and, being familiar with the studio’s philosophy, gave the design team the freedom to define both the design strategy and the material approach. The existing trees, the slope, and planning regulations shaped the proposal. Any significant earthworks would have been extremely costly, and for this reason, the program was organized into three elevated volumes arranged at different levels in the upper part of the plot, in order to take advantage of the sea views.
all images by José Hevia
Casa CLO’s vertical structure echoes the rhythm of the forest
The placement of these volumes responds to the position of the existing trees to avoid felling them, resulting in a slight rotation in plan that gives the overall composition a more organic configuration. The designers at Alventosa Morell Arquitectes worked with a timber structure in which the entire load is transferred to ten columns, allowing the intervention on the ground to be limited to just ten-point foundations. This lightweight structure echoes the verticality of the forest and brings it into the interior of the house. Planning regulations required an excavation along the street edge, which was used to accommodate the parking area. From there, a stair along the side of the plot leads up to the upper part of the site, first reaching the swimming pool and finally the entrance terrace. Upon entering the house, one arrives at a double-height dining space and kitchen. This large space visually connects the shared areas of the three volumes. A metal staircase provides access to the remaining levels, first leading to a second floor with a double-height study and a bedroom, and finally to two additional bedrooms on the top floor.
Casa CLO is a lightweight timber house set within a pine forest on the coast of Tarragona, Spain
the house steps down a steep, rocky site, adapting closely to the natural topography
planning regulations and existing trees directly shaped the building layout
the layout organizes common areas toward the forest views
a metal staircase links the study, bedrooms, and upper living levels
a large skylight invites ample daylight within the study area
timber interiors define Casa CLO’s material palette
the vertical timber structure echoes the rhythm of the surrounding forest
the main bedroom frames views toward the surrounding pine forest
wooden surfaces extend to the minimal bathroom on the upper level
the central kitchen and dining space visually connects all three volumes
three separate volumes organize the program across different levels of the slope
project info:
name: Casa CLO
architect: Alventosa Morell Arquitectes | @alventosamorell
location: Tarragona, Spain
area: 140 sqm
photographer: José Hevia
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edited by: christina vergopoulou | designboom
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