Montigny-le-Bretonneux Property Prices, Rents & Rental Yields

About Montigny-le-Bretonneux

Montigny-le-Bretonneux sits in the Yvelines department, within the Saint-Quentin-en-Yvelines urban area. Its planned neighborhoods, green spaces and rail links toward Paris give the city a distinct setting for apartment investment analysis.

October 2026 brings a divergence into focus: average apartment sale prices rose 1.4% from the previous month, while average rents were down 17.4% from a year earlier. These changes cover different periods, so they should not be read as a single shift in investor returns. They do, however, point in opposite directions for two inputs to an investment calculation: purchase price and rental income. With the average apartment sale price at €283,000, the recent rise matters when assessing an entry price, even if it says little on its own about the longer-term trend.

The reported yield is 5.46%, but that market-level figure is not a forecast for any particular apartment. The useful question is whether the rent achievable on a specific property remains proportionate to its asking price. Comparing those property-level figures is more informative than assuming the published average yield will apply to every purchase, particularly when sale and rent prices are moving differently across the periods reported.

For this month’s reading, keep the time frames separate: the sale-price rise describes recent movement, while the rental decline measures a full year. That distinction frames the tension without treating either change as a prediction of what comes next.