Collonges sits on the right bank of the Rhône between Saint-Maurice and Martigny, across the river from Evionnaz and Vernayaz.
Flat prices in Collonges run at CHF 4,700 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. Prices below the cantonal level move later and less than the top of the market. In practice a correction in Valais reaches communes like this one with a delay, and so does a recovery.
Position 75 of 119 in Valais puts Collonges 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. Houses carry a premium of 23 percent per square metre over flats in Collonges, CHF 5,800 against CHF 4,700. Households buying a house here are mostly trading up from a flat nearby, so demand holds even when volumes drop.
Up 4.0 percent in a year, Collonges has been priced by whoever was willing to pay most for a small number of properties. In a commune with few sales, that is exactly how a median gets moved. Within the Saint-Maurice district, Collonges lands 4 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 Collonges, 25 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.
The average home in Collonges has 3.5 rooms for 93 m². That ratio describes the shape of local demand better than the price does. Many small rooms point to family housing, fewer and larger ones to conversions and new build. Half the flats sold in Collonges went above CHF 4,700 per m² and half below, which puts the commune 10 percent from the Valais median. One exceptional sale barely moves a median, and that is why we use it instead of an average.
From CHF 4,000 to CHF 9,300 per square metre in 25 years, +133 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 Collonges 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.
If you are weighing a sale in Collonges, the useful question is not the commune price but yours. A few minutes and a handful of characteristics are enough to place your property inside the local range.
Building stock from the Federal Register of Buildings and Dwellings (FSO), updated October 18, 2026
Market data updated on October 12, 2026
A range set against the price levels of your commune and the profile of your property.
Value my property →CHF 4,700 per m² is the current median for flats in Collonges. It covers every sale, new and old, so a renovated flat sits above that line and one still needing works sits below it.
The reference is CHF 5,800 per m² in Collonges. It averages a small number of sales, since houses change hands far less often than flats, so treat it as a bracket to work inside rather than as a price.
The dominant band in Collonges is after 2015, which covers 25 percent of homes. Average size runs to 3.5 rooms, so the commune is built mainly for households rather than for single occupants or short stays.