Sartrouville · report
Renovation in Sartrouville
In 2025, 2% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 2%
Homes authorised in Sartrouville: 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 | 452 | 9 | 461 |
| 2024 | 139 | 144 | 283 |
| 2023 | 25 | 868 | 893 |
| 2022 | 937 | 2 | 939 |
| 2021 | 384 | 11 | 395 |
| 2020 | 361 | 17 | 378 |
| 2019 | 716 | 8 | 724 |
| 2018 | 561 | 29 | 590 |
| 2017 | 500 | 18 | 518 |
| 2016 | 120 | 1 | 121 |
| 2015 | 132 | 28 | 160 |
| 2014 | 262 | 10 | 272 |
| 2013 | 342 | 23 | 365 |
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 Sartrouville
At the median sale price, a 90 m² home costs €383,670. With 10% down and a 30-year mortgage, the payment is €1,493 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 31%
- Payment, one income
- 62%
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
- €1,846
- Owning per month
- €1,205
Figures for Yvelines: Sartrouville 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 1,193 while 412 homes were started: 2.9 new residents for every new home.
- New residents per new home, 2022
- 2.9
- Population change, 2022
- +1,193
5.1% of the 23,357 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.1%
- Empty homes
- 1,184