Yvelines · report
Renovation in Yvelines
In 2025, 27% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 27%
Homes authorised in 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 | 4,332 | 1,594 | 5,926 |
| 2024 | 2,304 | 1,937 | 4,241 |
| 2023 | 5,221 | 2,508 | 7,729 |
| 2022 | 9,412 | 850 | 10,262 |
| 2021 | 7,979 | 491 | 8,470 |
| 2020 | 5,760 | 609 | 6,369 |
| 2019 | 8,858 | 440 | 9,298 |
| 2018 | 8,528 | 543 | 9,071 |
| 2017 | 10,207 | 616 | 10,823 |
| 2016 | 8,739 | 862 | 9,601 |
| 2015 | 8,467 | 429 | 8,896 |
| 2014 | 5,969 | 601 | 6,570 |
| 2013 | 6,780 | 885 | 7,665 |
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 Yvelines
At the median sale price, a 90 m² home costs €346,050. With 10% down and a 30-year mortgage, the payment is €1,347 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 26%
- Payment, one income
- 51%
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
- Per 1,000 residents
- 5.0
Prices of existing homes have fallen by 3% or more 4 times since 1996. The deepest began in Q3 2022.
- Deepest fall
- −12.3%
- Recovery from the low
- Not yet
In 2022 the population grew by 14,308 while 8,158 homes were started: 1.8 new residents for every new home.
- New residents per new home, 2022
- 1.8
- Population change, 2022
- +14,308
5.9% of the 678,260 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.9%
- Empty homes
- 40,022
Public bodies signed €6M of housing works here in 2025, and €13.6M since 2024.
- Signed in 2025
- €6M
- Per resident, 2025
- €4