In the Chablais plain at the foot of the hillside, Vionnaz combines a valley-floor village with the resort of Torgon in the Portes du Soleil.
Flat prices in Vionnaz run at CHF 5,500 per m², a level that has stayed in step with Valais. A commune like this one moves with the cantonal cycle rather than against it, so the wider trend is a fair guide for your own estimate. Position 34 of 67 in Valais puts Vionnaz among communes with similar price levels and often very different housing stock. Two communes can share a rank and still value the same flat differently once age and condition are taken in.
At CHF 6,200 per m² houses outprice flats in Vionnaz by 13 percent. The difference is the plot rather than the build: a house sells with land attached, and where there is little left to build on, the land does the pricing. Flat prices in Vionnaz are up 3.5 percent over twelve months. One year is a short window: measure it against the longer trajectory before you read it as a change of direction.
Against the Monthey district the gap comes to 11 percent. This is the comparison that carries weight for an estimate: communes in one district share a labour market, a transport network and the same pool of buyers. The largest group of homes in Vionnaz, 24 percent, dates from after 2015, with the rest spread across the other bands. Where stock is this varied, a commune price per m² carries less weight and the comparison has to come down to buildings of the same age. Average size in Vionnaz is 100 m² across 3.1 rooms. Compare your own property with that figure before you read any price per square metre: an outsized home rarely sells at the local rate, and a small one often beats it.
The median flat in Vionnaz comes out at CHF 5,500 per m², a gap of 0 percent against the Valais median. That figure covers every flat sold, whatever the floor, the age of the building or the state of the kitchen. From CHF 3,700 to CHF 8,600 per square metre in 25 years, +132 percent in all. The path was not a straight line, and the flat or falling stretches inside it are precisely what a long average hides.
Enough properties change hands in Vionnaz each year to keep the price data steady. Estimates land in a narrower range here, and a valuation can lean on recent comparable sales instead of falling back on the cantonal average. Knowing the median in Vionnaz gets you halfway. The second half is what separates your property from that median: condition, orientation, outside space, parking, and the works still to be done.
Building stock data: Federal Register of Buildings and Dwellings, FSO, updated August 3, 2026
Market data updated on August 24, 2026
A range set against the price levels of your commune and the profile of your property.
Value my property →The median flat in Vionnaz is priced at CHF 5,500 per m². That puts the commune 0 percent from the Valais median, a gap explained in part by the age of the local stock and in part by how little land is left to build on.
Houses in Vionnaz are valued around CHF 6,200 per m² of living space. The plot weighs heavily on that figure, so two houses of identical size can be far apart in price if one has land around it and the other has none.
The dominant band in Vionnaz is after 2015, which covers 24 percent of homes. Average size runs to 3.1 rooms, so the commune is built mainly for households rather than for single occupants or short stays.