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

About Rosny-sous-Bois

Rosny-sous-Bois is a city in Seine-Saint-Denis, France, and its apartment figures offer a more precise location lens than department-wide figures would. For investors comparing places, the useful distinction is that sale prices, rents and yield can be read together at city level.

In October 2026, the clearest signal is the divergence between rents and sale prices. Average apartment rent was up 42.0% month over month, while the average sale price was down 1.9% over the same interval. That contrast may make rental income look stronger relative to the cost of buying, but it does not establish that the shift will persist. The changes describe reported averages, not a matched set of identical apartments. The question for investors is how much weight to place on a striking monthly rent movement when sale pricing has moved in the opposite direction.

The longer comparison adds restraint: average rent was up 11.2% year over year, a less abrupt change than the latest monthly rise. The reported apartment yield stands at 6.07%, offering a snapshot of the relationship between rental income and purchase cost in Rosny-sous-Bois. It is not a promised return or a substitute for examining an individual property. Together, these measures give investors a reason to test the apparent income advantage carefully, rather than assume a citywide average describes any particular apartment.