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

About Montigny-le-Bretonneux

Montigny-le-Bretonneux, in the Yvelines department of France, combines a planned urban layout with local amenities, green spaces, and strong everyday connectivity. As part of the Saint-Quentin-en-Yvelines area, it offers a practical setting that continues to attract attention from apartment investors.

July 2026 points to a clear tension in the apartment market: values are edging higher, but rental growth is moving faster. The average sale price now stands at €288,500, up 2.7% over the month and 3.2% over the year, while the average price per m² is €3,950, also up 2.7% month on month even though it is still down 5.3% year on year. That mix suggests a market where pricing has recovered in the short term, yet the longer-term per-square-metre picture remains more restrained.

Rents are doing more of the heavy lifting. The average apartment rent has reached €1,080, rising 10.8% month on month and 8.6% over 12 months. Against that backdrop, the reported yield of 5.49% remains the key metric to watch: it signals that income is keeping pace with valuation changes for now, but it also leaves less room for error if sale prices continue to firm faster than rents. For investors, July brings a market that is improving, but not without pressure on future returns.