Voiron · report
Renovation in Voiron
In 2025, 13% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 13%
Homes authorised in Voiron: 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 | 427 | 65 | 492 |
| 2024 | 205 | 5 | 210 |
| 2023 | 102 | 61 | 163 |
| 2022 | 441 | 1 | 442 |
| 2021 | 207 | 11 | 218 |
| 2020 | 109 | 14 | 123 |
| 2019 | 248 | 19 | 267 |
| 2018 | 417 | 16 | 433 |
| 2017 | 186 | 23 | 209 |
| 2016 | 90 | — | 90 |
| 2015 | 221 | 5 | 226 |
| 2014 | 51 | 18 | 69 |
| 2013 | 164 | 10 | 174 |
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 Voiron
At the median sale price, a 90 m² home costs €230,130. With 10% down and a 30-year mortgage, the payment is €896 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 20%
- Payment, one income
- 41%
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
- €1,107
- Owning per month
- €796
Figures for Isère: Voiron 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 grew by 243 while 150 homes were started: 1.6 new residents for every new home.
- New residents per new home, 2022
- 1.6
- Population change, 2022
- +243
10.2% of the 12,535 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 10.2%
- Empty homes
- 1,279