Boulogne-Billancourt, the third most expensive municipality in Hauts-de-Seine, has seen the value of its apartments per square meter plummet in recent months. 8,153 euros in our latest barometer is 3.7% less than three months ago.

This is worse than the departmental average, which is already falling sharply following the trend in the rest of the inner suburbs. In the Oise, inexpensive and spacious, the houses of Creil have potential 9,229 euros in March 2022.