Ensemble résidentiel Diolly

Savièse · Housing · Ongoing

A SITE TO RETHINK. Occupying a prominent place in the residential neighbourhood of Diolly, on the boundary between the municipalities of Savièse and Sion, the plot of the former Diollymed surgical clinic had shown its limits, both in regulatory compliance and in landscape integration. The end of its operation, followed by its demolition, offered a rare opportunity to rethink the site entirely and reconsider its impact on the immediate surroundings. It is in this context that a new building rises, designed to fit precisely into its setting and to meet the contemporary requirements of considered land development.

SETTLING INTO THE SLOPE. The project places great importance on a thoughtful inward development, seeking a harmonious blend with the existing residential fabric. The plot has a steep gradient that directly shaped the layout: the two buildings step down in terraces to follow the double slope of the land and settle naturally into the relief. This arrangement limits the visibility of the volumes from the Diolly and Lentine roads, reducing the visual footprint of the ensemble in favour of the contours of the landscape.

TWO BUILDINGS, SIX HOMES. The ensemble comprises two distinct buildings, each housing three 4.5-room apartments, for a total of six units. Each home offers a living area equivalent to that of a single-family house and opens onto a generous planted terrace. These private garden-terraces, planted with shrubs and small trees, extend the living space into a verdant setting and give each home a resolutely landscaped character.

DENSIFYING WITHOUT DEPLETING. The approach reconciles densification with the preservation of biodiversity. The green roofs — extensive on the main roof, intensive on the terraces — combine with retention surfaces and absorbent landscaping to ensure sustainable rainwater management, cool the slabs in summer and foster local biodiversity. In terms of energy, a geothermal heat pump provides heating and cooling through the floor, complemented by a double-flow ventilation system and an integrated photovoltaic installation for self-consumption. The deliberately efficient layout of the accesses keeps drivable surfaces to a minimum.

A MINERAL ENVELOPE. The materiality continues this pursuit of integration: mineral façades, enhanced by inserts of profiled metal cladding, and wood-aluminium windows with triple glazing fitted with fabric solar shading. Conceived with respect for the natural terrain and the principles of sustainability, the ensemble offers carefully crafted amenities in a setting in full harmony with the landscape of Diolly.