With its enclosed medieval town set on the lake, Saint-Prex is one of the residential jewels of La Côte between Morges and Rolle.
Buying in Saint-Prex means paying more per square metre than almost anywhere in Vaud: CHF 11,500 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 Vaud 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.
Position 17 of 132 in Vaud puts Saint-Prex 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. Up 2.6 percent in a year, Saint-Prex 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 Morges district the gap comes to 20 percent. This is the comparison that carries weight for an estimate: communes in one district share a labour market, a transport network and the same pool of buyers. The largest group of homes in Saint-Prex, 13 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 Saint-Prex is 100 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.
Half the flats sold in Saint-Prex went above CHF 11,500 per m² and half below, which puts the commune 25 percent from the Vaud median. One exceptional sale barely moves a median, and that is why we use it instead of an average. From CHF 3,800 to CHF 10,100 per square metre in 25 years, +166 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.
Enough properties change hands in Saint-Prex 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. The figures above describe Saint-Prex, 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 →CHF 11,500 per m² is the current median for flats in Saint-Prex. It covers every sale, new and old, so a renovated flat sits above that line and one still needing works sits below it.
Houses in Saint-Prex are valued around CHF 11,900 per m² of living space. The plot weighs heavily on that figure, so two houses of identical size can be far apart in price if one has land around it and the other has none.
Homes in Saint-Prex average 3.6 rooms, with before 1919 the most common construction period at 13 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.