At the heart of the Val d'Illiez facing the Dents-du-Midi, Val-d'Illiez combines a Chablais village with the resorts of the Portes du Soleil.
Buying in Val-d'Illiez means paying more per square metre than almost anywhere in Valais: CHF 6,300 for a flat. The gap holds even on older stock, so renovation work rarely comes off the asking price the way it does elsewhere. The premium over Valais has a practical effect at resale. Buyers arriving from cheaper communes negotiate hard on condition, because they are already stretched on the price per square metre before they walk in.
Val-d'Illiez ranks 13 out of 67 communes in Valais on flat prices per m². Rankings shift a place or two from one year to the next without anything real changing, so read the band rather than the exact position. A house in Val-d'Illiez is valued around CHF 6,900 per m² against CHF 6,300 for a flat, a gap of 10 percent. Land is what separates the two figures, and the scarcer the building plots, the wider that gap runs.
Flat prices in Val-d'Illiez are up 3.1 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. Within the Monthey district, Val-d'Illiez lands 2 percent from the local median. A cantonal average mixes city and countryside, so it flatters some communes and penalises others. The district figure removes most of that distortion. The largest group of homes in Val-d'Illiez, 21 percent, dates from before 1919, 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 Val-d'Illiez is 102 m² across 3.6 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. CHF 6,300 per m² is the working reference for a flat in Val-d'Illiez, 15 percent from Valais. Take it as a starting point: in a commune this size, the spread between the cheapest and the dearest street is often wider than the gap to the canton.
From CHF 3,900 to CHF 8,200 per square metre in 25 years, +110 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. Transaction volume in Val-d'Illiez is high enough that one unusual sale does not distort the medians. That matters, because thin markets are where automated estimates go furthest wrong and where a local opinion earns its keep. The figures above describe Val-d'Illiez, not your property. At this end of the market the distance between the two is where the negotiation happens, so start from a valuation that takes your own characteristics as its input.
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 →Around CHF 6,300 per m² for a flat, which is 15 percent from the Valais median. Houses are priced separately and usually land somewhere else entirely, so work from the figure that matches your property type.
Count on roughly CHF 6,900 per m² for a house in Val-d'Illiez. That rate applies to habitable surface, which leaves out the garage, the cellar and any unconverted attic, all of which add value but never at the same rate.
Homes in Val-d'Illiez average 3.6 rooms, with before 1919 the most common construction period at 21 percent. The mix means condition varies a lot from one building to the next, and condition is what pulls two similar flats apart on price.