Fontenais grew by absorbing Bressaucourt and also includes Villars-sur-Fontenais, just south of Porrentruy and practically touching the town's outskirts.
At CHF 4,000 per m², Fontenais sits near the middle of the Jura scale. Which side of that median your own flat lands on depends more on floor, view and condition than on the address itself. Out of 49 communes measured in Jura, Fontenais sits at position 26. The communes immediately above and below are the ones a buyer will actually compare against, far more than the cantonal average. The 8 percent premium on flats over houses in Fontenais is unusual and needs reading carefully. It normally means the flats sold recently were new or central, while the houses were older and priced mainly on their land.
Up 2.7 percent in a year, Fontenais 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. Against the Porrentruy district the gap comes to 11 percent. This is the comparison that carries weight for an estimate, because communes in one district share a labour market, a transport network and the same pool of buyers.
The largest group of homes in Fontenais, 23 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. The average home in Fontenais has 4.4 rooms for 105 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 Fontenais comes out at CHF 4,000 per m², a gap of 2 percent against the Jura median. That figure covers every flat sold, whatever the floor, the age of the building or the state of the kitchen. From CHF 4,400 to CHF 7,300 per square metre in 25 years, +66 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. Fontenais turns over enough stock to give a reliable read. The practical benefit shows at negotiation, where both sides can point to comparable sales from the same year, which shortens the distance between asking price and signature.
If you are weighing a sale in Fontenais, 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 4,000 per m² is the current median for flats in Fontenais. 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 3,700 per m² in Fontenais. 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.
Homes in Fontenais average 4.4 rooms, with before 1919 the most common construction period at 23 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.