At the northern gates of Fribourg, La Sonnaz brings together Lossy, La Corbaz and Cormagens in the Sarine countryside.
At CHF 6,900 per m², La Sonnaz sits near the middle of the Fribourg scale. Which side of that median your own flat lands on depends more on floor, view and condition than on the address itself. A gap of 8 percent over the Fribourg median is not statistical noise. It measures what buyers accept to pay for the location itself, and it holds through the cycle instead of appearing in one strong year.
Position 19 of 83 in Fribourg puts La Sonnaz 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. Flat prices in La Sonnaz are up 3.6 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.
The district test is the harder one. La Sonnaz comes out 1 percent from the Sarine median, measured against communes competing for the same buyers rather than against a whole canton with several markets in it. No single period defines La Sonnaz, though after 2015 leads with 22 percent. That mix works in a buyer's favour, since you can choose between period character and low running costs without leaving the commune. Average size in La Sonnaz is 119 m² across 4.2 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.
Half the flats sold in La Sonnaz went above CHF 6,900 per m² and half below, which puts the commune 8 percent from the Fribourg median. One exceptional sale barely moves a median, and that is why we use it instead of an average. Over 25 years the median moved from CHF 4,000 to CHF 8,100 per m², a change of +102 percent. That is the market, not your property: a flat renovated in the meantime followed a different curve entirely.
Enough properties change hands in La Sonnaz 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 La Sonnaz 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 →Around CHF 6,900 per m² for a flat, which is 8 percent from the Fribourg median. Houses are priced separately and usually land somewhere else entirely, so work from the figure that matches your property type.
The reference is CHF 6,700 per m² in La Sonnaz. 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 La Sonnaz is after 2015, which covers 22 percent of homes. Average size runs to 4.2 rooms, so the commune is built mainly for households rather than for single occupants or short stays.