Val-d'Oise · report
Renovation in Val-d'Oise
In 2025, 9% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 9%
Homes authorised in Val-d'Oise: 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 | 4,272 | 439 | 4,711 |
| 2024 | 2,879 | 820 | 3,699 |
| 2023 | 5,072 | 857 | 5,929 |
| 2022 | 5,916 | 840 | 6,756 |
| 2021 | 5,855 | 530 | 6,385 |
| 2020 | 5,761 | 523 | 6,284 |
| 2019 | 6,552 | 803 | 7,355 |
| 2018 | 7,634 | 404 | 8,038 |
| 2017 | 10,407 | 493 | 10,900 |
| 2016 | 8,869 | 285 | 9,154 |
| 2015 | 5,847 | 524 | 6,371 |
| 2014 | 6,739 | 682 | 7,421 |
| 2013 | 5,606 | 428 | 6,034 |
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 Val-d'Oise
At the median sale price, a 90 m² home costs €301,950. With 10% down and a 30-year mortgage, the payment is €1,175 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 27%
- Payment, one income
- 54%
32.3% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 4,869
- Per 1,000 residents
- 3.8
Prices of existing homes have fallen by 3% or more 4 times since 1996. The deepest began in Q3 2022.
- Deepest fall
- −12.0%
- Recovery from the low
- Not yet
In 2022 the population grew by 10,808 while 6,211 homes were started: 1.7 new residents for every new home.
- New residents per new home, 2022
- 1.7
- Population change, 2022
- +10,808
6.0% of the 546,347 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 6.0%
- Empty homes
- 33,049
Public bodies signed €1.9M of housing works here in 2025, and €4.4M since 2024.
- Signed in 2025
- €1.9M
- Per resident, 2025
- €1