House prices in Romilly-sur-Seine

At the median sale price, a 90 m² home costs €106,560. With 10% down and a 30-year mortgage, the payment is €415 a month. The HCSF caps it at 35% of a household's income.

Owning a 90 m² apartment costs less each month than renting it. Owning counts interest, running costs and the return the deposit could earn, at apartments' median sale price; rent is the asking rent. Repaying the loan is saving, so it is left out.

Figures for Aube: Romilly-sur-Seine has no reliable figures of its own.

41.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.

In 2022 the population grew by 208 while 13 homes were started: 16.0 new residents for every new home.

11.1% of the 7,937 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.

In 2025, 37% of the homes authorised were in existing buildings: conversions, extensions and changes of use.