Location: Semione, Ticino, Swiss Alps
Year: 2022
Architecture: Martino Avilés
Photography: Marcelo Villada Ortiz
Positioned with Care
Casa CGS stands on the upper slope of Semione in the Blenio Valley, a village marked by a vernacular Alpine fabric. Carefully placed just outside the town’s center, the house respects the traditional logic of site orientation in mountainous terrain. Its surroundings are defined by an agricultural past, where the terrain and settlement patterns shaped the architecture long before modern interventions.


Three-Part Composition
A clearly articulated tripartite structure defines the home: a concrete base grounded in the slope, a translucent middle layer of glass and aluminum, and a timber crown shaped into a gabled roof. Each part serves a functional and symbolic role—anchoring, revealing, and sheltering—while together forming a cohesive response to both the terrain and the sky.











Inspired by Agrarian Structures
The architectural language of Casa CGS reflects the pragmatic clarity of mountain farm buildings. Without mimicry, it distills elements such as simplicity, rhythm, and material honesty to resonate with the environment. Rather than serving productive needs, the home now engages the landscape contemplatively—seeking connection through silence, not function.

Framing the Landscape
The house’s spatial organization separates rest from gathering. On the upper sleeping level, framed views offer focused glimpses of the valley. On the lower living level, expansive glazing on all four sides blurs interior and exterior, transforming passing clouds, trees, and ridgelines into part of the daily experience. The contrast between compression and openness structures the dwelling’s internal rhythm.
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