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

About Marly-le-Roi

Marly-le-Roi in Yvelines blends historic character with a well-connected western Paris setting. Its apartments sit within a mature suburban landscape shaped by rail access, leafy streets, and the appeal of a commune that remains closely tied to the capital while keeping its own identity.

August 2026 brings the clearest signal yet: apartment values have eased, but the income case has not weakened in the same way. The average sale price stands at €259,500, while the average price per m² is €3,860, both down over the month and also lower year on year. That combination points to softer capital values rather than a broad repricing of the rental side.

For investors, the tension is straightforward. The average rent is €1,150, and it is still up 4.4% from a year ago even after a 4.5% monthly dip. Against that backdrop, the gross yield of 6.69% looks more resilient than the recent sales trend alone might suggest, especially as the average sale price is down 10.7% year on year. In other words, Marly-le-Roi’s apartment market is currently defined less by momentum than by the gap between falling acquisition costs and steadier rent support.