Compare places
Choose up to three municipalities or districts to set their figures side by side.
The figures side by side
| Measure | Groslay |
|---|---|
| Price per m² | — |
| Change in a year | — |
| Change in five years | — |
| Affordability | |
| Payment, two incomes | 24% |
| Payment, one income | 49% |
| Buy or rent | |
| Rent per month | €1,623 |
| Owning per month | €1,027 |
| New homes | |
| Licensed, 12 months | 4,869 |
| People and new homes | |
| New residents per new home, 2022 | 12.5 |
| Population change, 2022 | +75 |
| Empty homes | |
| Empty, 2023 census | 6.4% |
| Empty homes | 224 |
| Renovation | |
| Homes in existing buildings, 2025 | 40% |
Each place's own figures where it has them; a dash means there is none. Prices are asking prices where a place has them, and bank valuations otherwise.
Every report
Affordability
Groslay
At the median sale price, a 90 m² home costs €308,250. With 10% down and a 30-year mortgage, the payment is €1,200 a month. The HCSF caps it at 35% of a household's income.
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Buy or rent
Groslay
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.
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New homes
Groslay
Figures for Val-d'Oise: Groslay has no reliable figures of its own.
32.3% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
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People and new homes
Groslay
In 2022 the population grew by 75 while 6 homes were started: 12.5 new residents for every new home.
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Empty homes
Groslay
6.4% of the 3,522 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
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Renovation
Groslay
In 2025, 40% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
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