Marly-le-Roi Property Prices, Rents & Rental Yields

About Marly-le-Roi

Marly-le-Roi sits in the western Paris orbit of Yvelines, where historic streets, wooded edges, and quick access to the wider Île-de-France network shape its appeal. For apartment investors, it offers a suburban setting with a distinctly established residential feel and a market that can shift meaningfully over short periods.

September 2026 brings the clearest signal yet: pricing has softened sharply on a yearly basis, while rents have moved in the opposite direction. The average apartment sale price stands at €259,500, with the average price per square metre at €3,870, down 15.4% year over year and essentially unchanged month over month. That combination points to a market where entry prices have reset more quickly than rents.

At the same time, rental performance has continued to edge higher. The average rent price is €1,180, up 2.9% over the month and 8.1% over the year, which helps explain why the estimated yield now reaches 6.29%. For investors, the tension is clear: lower purchase values can improve arithmetic, but the monthly rent increase is doing much of the heavy lifting in supporting returns. In practical terms, this is a market where income has become more supportive even as capital values remain notably below last year’s level.