Grenoble · report
Renovation in Grenoble
In 2025, 23% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 23%
Homes authorised in Grenoble: 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 | 403 | 117 | 520 |
| 2024 | 201 | 111 | 312 |
| 2023 | 178 | 36 | 214 |
| 2022 | 540 | 172 | 712 |
| 2021 | 142 | 107 | 249 |
| 2020 | 84 | 63 | 147 |
| 2019 | 844 | 58 | 902 |
| 2018 | 488 | 59 | 547 |
| 2017 | 591 | 99 | 690 |
| 2016 | 917 | 88 | 1,005 |
| 2015 | 345 | 53 | 398 |
| 2014 | 699 | 56 | 755 |
| 2013 | 1,174 | 69 | 1,243 |
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 Grenoble
At the median sale price, a 90 m² home costs €224,280. With 10% down and a 30-year mortgage, the payment is €873 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 22%
- Payment, one income
- 43%
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
- €1,207
- Owning per month
- €812
Figures for Isère: Grenoble has no reliable figures of its own.
31.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 6,432
In 2022 the population fell by 249 while 338 homes were started.
- Homes started, 2022
- 338
- Population change, 2022
- −249
13.5% of the 102,222 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 13.5%
- Empty homes
- 13,803