Astet Studio shares its design for Aethos Monterosa, a reinterpretation of the traditional Alpine chalet, set to open December 2025…
Barcelona-based interior architecture atelier Astet Studio, which recently led on the design of Aethos’ newly opened London property, has shared its design for the Alpine mountain retreat Aethos Monterosa.
A reinterpretation of the traditional chalet envisioned through a contemporary lens, the Monterosa is curated to feel modern yet rooted in its landscape.
Image credit: Aethos / Astet Studio
The renovation includes the construction of a new wing with 23 suites and the reworking of the hotel’s existing interiors. Astet’s concept draws directly from the surrounding environment of Val d’Ayas; timber, stone and forged metal set the tone of the architecture. Echoing the valley’s colours and textures, the carefully selected elements define the character of the interiors and establish a clear dialogue between the hotel and its wider setting.
Our starting point was the landscape. Every material, texture, pattern and piece has been chosen and designed carefully, creating interiors that feel naturally part of the valley – Ala Zreigat and Oscar Engroba, Astet Studio Founders.
At the Aethos Monterosa, the customary chalet typology has been re-visioned, rather than replicated. Traditional Alpine elements such as steep roofs, deep reveals and warm cores are translated into simple, clean lined and well-proportioned architectural gestures. Here, surfaces are stripped back to their essence, the result is a property that offers total calm and organic tactility.
Image credit: Aethos / Astet Studio
The new 23-key wing is designed as a continuation of the site’s original structure – built between 2016 and 2018. Aligning with the existing design, the new suites are oriented to make the most of daylight and the peak views which wrap around the structure.
Central to the project is the relationship between the building and landscape. Thus, large windows frame the mountains, earthy tones mirror valley hues, and outdoor spaces extend the interiors experience. A newly landscaped garden and a panoramic pool places guests even closer to the natural environment.
Image credit: Aethos / Astet Studio
Craftsmanship plays a key role in Astet’s design, where bespoke timber joinery, stone plinths and finely profiled metalwork give the hotel a distinct identity; rooted in the studio’s philosophy of building spaces that build a close connection between people and place.
Main image credit: Aethos / Astet Studio
