Saint-Germain-en-Laye Property Prices, Rents & Rental Yields

About Saint-Germain-en-Laye

Saint-Germain-en-Laye combines historic streets, the edge of the forest, and strong links to western Paris, giving the city a distinctly residential identity in Yvelines. Its apartment market reflects that setting, with pricing shaped as much by location and livability as by broader regional trends.

July 2026 points to a clear tension in Saint-Germain-en-Laye’s apartment market: sale prices are broadly steady, while rental costs are moving faster. The average apartment sale price sits at €483,000, up just 0.2% over the month, and the average price per square metre is €6,990, up 0.1%. Against that near-flat sales picture, the average rent has climbed 8.2% month over month to €1,270, which makes the current 4.41% yield feel more pressured than the headline numbers alone suggest.

The year-on-year view adds another layer to that imbalance. Average sale prices are down 12.2% from July 2025, and the average price per square metre is down 5.9%, even though rents are still up 1.8% over the same period. For investors, that combination suggests a market where income has held up better than capital values, but not strongly enough to remove the squeeze. In practical terms, Saint-Germain-en-Laye remains a location where apartment pricing and rental movement are no longer pointing in the same direction, and that divergence is the key signal this month.