Saint-Arnoult-en-Yvelines · report
Renovation in Saint-Arnoult-en-Yvelines
In 2025, 0% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 0%
Homes authorised in Saint-Arnoult-en-Yvelines: new buildings and existing ones
Dwellings authorised each year, by the year the permit was granted: in new buildings, and by works on existing buildings (conversions, extensions, changes of use). SDES Sitadel.
- Existing buildings
- New buildings
Show the numbers
| Year | New buildings | Existing buildings | Total |
|---|---|---|---|
| 2025 | 1 | — | 1 |
| 2024 | 4 | 1 | 5 |
| 2023 | 118 | 7 | 125 |
| 2022 | 149 | 1 | 150 |
| 2021 | 8 | 4 | 12 |
| 2020 | 1 | 1 | 2 |
| 2019 | 62 | — | 62 |
| 2018 | 20 | 6 | 26 |
| 2017 | 111 | — | 111 |
| 2016 | 11 | — | 11 |
| 2015 | 16 | 1 | 17 |
| 2014 | 8 | 1 | 9 |
| 2013 | 6 | — | 6 |
Only permits that create dwellings are listed, so renovation that adds no home (refurbishing, insulating, re-roofing) is not counted. A permit is permission to build, not a finished home. The current year is left out until it is complete.
Other reports for Saint-Arnoult-en-Yvelines
At the median sale price, a 90 m² home costs €266,400. With 10% down and a 30-year mortgage, the payment is €1,037 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 19%
- Payment, one income
- 38%
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.
- Rent per month
- €1,411
- Owning per month
- €992
Figures for Yvelines: Saint-Arnoult-en-Yvelines has no reliable figures of its own.
12.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 7,492
In 2022 the population grew by 21 while 7 homes were started: 3.0 new residents for every new home.
- New residents per new home, 2022
- 3.0
- Population change, 2022
- +21
7.3% of the 2,831 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 7.3%
- Empty homes
- 206