Saint-Jean-d'Illac · report
Renovation in Saint-Jean-d'Illac
In 2025, 4% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 4%
Homes authorised in Saint-Jean-d'Illac: 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 | 24 | 1 | 25 |
| 2024 | 120 | 2 | 122 |
| 2023 | 40 | 1 | 41 |
| 2022 | 15 | 9 | 24 |
| 2021 | 79 | 101 | 180 |
| 2020 | 71 | 2 | 73 |
| 2019 | 23 | — | 23 |
| 2018 | 141 | 1 | 142 |
| 2017 | 54 | 6 | 60 |
| 2016 | 203 | 2 | 205 |
| 2015 | 171 | 1 | 172 |
| 2014 | 68 | — | 68 |
| 2013 | 162 | — | 162 |
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 Saint-Jean-d'Illac
At the median sale price, a 90 m² home costs €317,520. With 10% down and a 30-year mortgage, the payment is €1,236 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 24%
- Payment, one income
- 48%
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
- €1,279
- Owning per month
- €1,165
Figures for Gironde: Saint-Jean-d'Illac has no reliable figures of its own.
27.8% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 11,095
In 2022 the population fell by 86 while 13 homes were started.
- Homes started, 2022
- 13
- Population change, 2022
- −86
3.2% of the 4,298 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 3.2%
- Empty homes
- 138