Aulnay-sous-Bois Property Prices, Rents & Rental Yields

About Aulnay-sous-Bois

Aulnay-sous-Bois is a city within France’s Seine-Saint-Denis department. For apartment investors, that makes the city, rather than the department as a whole, the relevant frame for reading local prices and rents.

In October 2026, the clearest signal for apartments is the gap between rising rents and a level sale price. Average rent rose 12.2% month on month, while the average sale price was unchanged over the same period. This divergence puts the income side of the investment case in the foreground, but it is a snapshot of reported averages, not evidence that every apartment will earn more.

The longer view tempers that reading. Rent prices are up 5.2% year on year, a smaller gain than the latest monthly move. That difference is worth keeping visible: the monthly increase is striking, yet it should not be treated as a proven pace of growth. Neither comparison by itself explains why rents moved.

With the average apartment sale price at €225,000 and the stated yield at 6.1%, the figures offer a starting point for assessing potential income against purchase cost. They do not establish the return on any individual purchase. For an investor tracking Aulnay-sous-Bois, the question now is whether subsequent rent readings sustain the recent rise while sale prices remain steady, or whether the gap narrows.