Seine-Saint-Denis · report
Renovation in Seine-Saint-Denis
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 Seine-Saint-Denis: 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 | 8,935 | 843 | 9,778 |
| 2024 | 6,075 | 459 | 6,534 |
| 2023 | 9,547 | 900 | 10,447 |
| 2022 | 11,282 | 1,421 | 12,703 |
| 2021 | 10,263 | 767 | 11,030 |
| 2020 | 12,136 | 712 | 12,848 |
| 2019 | 15,120 | 1,103 | 16,223 |
| 2018 | 14,875 | 2,119 | 16,994 |
| 2017 | 15,062 | 1,779 | 16,841 |
| 2016 | 14,296 | 1,031 | 15,327 |
| 2015 | 11,103 | 921 | 12,024 |
| 2014 | 9,009 | 642 | 9,651 |
| 2013 | 7,211 | 1,162 | 8,373 |
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 Seine-Saint-Denis
At the median sale price, a 90 m² home costs €360,000. With 10% down and a 30-year mortgage, the payment is €1,401 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 40%
- Payment, one income
- 79%
10.1% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 11,995
- Per 1,000 residents
- 7.0
Prices of existing homes have fallen by 3% or more 4 times since 1996. The deepest began in Q4 1992.
- Deepest fall
- −18.3%
- Recovery from the low
- 39 months
In 2022 the population grew by 22,591 while 8,840 homes were started: 2.6 new residents for every new home.
- New residents per new home, 2022
- 2.6
- Population change, 2022
- +22,591
6.0% of the 728,182 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 6.0%
- Empty homes
- 43,944
Public bodies signed €1.8M of housing works here in 2025, and €2.2M since 2024.
- Signed in 2025
- €1.8M
- Per resident, 2025
- €1