Above Raron on the southern side of the Rhône valley, Unterbäch has a place in Swiss history as the first commune where women cast a vote.
Unterbäch prices below the Valais median, at CHF 4,000 per m². For a buyer that widens what one budget covers, often by a room or by a plot. For a seller it means the surrounding communes set the ceiling. 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.
Out of 119 communes measured in Valais, Unterbäch sits at position 99. The communes immediately above and below are the ones a buyer will actually compare against, far more than the cantonal average. A house in Unterbäch is valued around CHF 5,000 per m² against CHF 4,000 for a flat, a gap of 25 percent. Land is what separates the two figures, and the scarcer the building plots, the wider that gap runs.
The last twelve months added 5.1 percent in Unterbäch. Rises of this order usually come from a shortage of listings rather than from a wave of new buyers, and they unwind faster than they build. The district test is the harder one. Unterbäch comes out 15 percent from the Raron median, measured against communes competing for the same buyers rather than against a whole canton with several markets in it. 1919-1945 accounts for 24 percent of homes in Unterbäch, ahead of the other periods without dominating them. A mixed stock widens the price range inside one commune, where two flats of the same size can be a third apart on condition alone.
The average home in Unterbäch has 3.3 rooms for 89 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. The median flat in Unterbäch comes out at CHF 4,000 per m², a gap of 23 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.
Over 25 years the median moved from CHF 4,200 to CHF 8,600 per m², a change of +105 percent. That is the market, not your property. A flat renovated in the meantime followed a different curve entirely. Transaction volume in Unterbäch 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. Before you settle on a price in Unterbäch, get a number that reflects your own property rather than the commune. It takes a few minutes, and it changes what you are able to defend in a negotiation.
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 →The median flat in Unterbäch is priced at CHF 4,000 per m². That puts the commune 23 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.
The reference is CHF 5,000 per m² in Unterbäch. 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.
24 percent of homes in Unterbäch date from 1919-1945. That age band sets the technical agenda for a buyer here, since insulation, heating system and windows are what decide running costs for the next twenty years.