Seine-et-Marne · report
Renovation in Seine-et-Marne
In 2025, 16% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 16%
Homes authorised in Seine-et-Marne: 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 | 5,567 | 1,096 | 6,663 |
| 2024 | 5,563 | 760 | 6,323 |
| 2023 | 5,547 | 666 | 6,213 |
| 2022 | 10,106 | 812 | 10,918 |
| 2021 | 11,385 | 499 | 11,884 |
| 2020 | 8,810 | 561 | 9,371 |
| 2019 | 11,223 | 558 | 11,781 |
| 2018 | 9,566 | 546 | 10,112 |
| 2017 | 12,581 | 636 | 13,217 |
| 2016 | 9,707 | 545 | 10,252 |
| 2015 | 8,573 | 532 | 9,105 |
| 2014 | 7,211 | 948 | 8,159 |
| 2013 | 8,745 | 790 | 9,535 |
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-et-Marne
At the median sale price, a 90 m² home costs €275,310. With 10% down and a 30-year mortgage, the payment is €1,072 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 23%
- Payment, one income
- 47%
29.0% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 7,285
- Per 1,000 residents
- 5.0
Prices of existing homes have fallen by 3% or more 3 times since 1996. The deepest began in Q3 2007.
- Deepest fall
- −12.5%
- Recovery from the low
- 135 months
In 2022 the population grew by 15,709 while 7,234 homes were started: 2.2 new residents for every new home.
- New residents per new home, 2022
- 2.2
- Population change, 2022
- +15,709
6.5% of the 661,580 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 6.5%
- Empty homes
- 43,086
Public bodies signed €8.6M of housing works here in 2025, and €19.1M since 2024.
- Signed in 2025
- €8.6M
- Per resident, 2025
- €6