Saint-Aignan-Grandlieu · report
Renovation in Saint-Aignan-Grandlieu
In 2025, 3% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 3%
Homes authorised in Saint-Aignan-Grandlieu: 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 | 29 | 1 | 30 |
| 2024 | 5 | 7 | 12 |
| 2023 | 6 | 2 | 8 |
| 2022 | 13 | 1 | 14 |
| 2021 | 16 | 2 | 18 |
| 2020 | 13 | 4 | 17 |
| 2019 | 20 | 1 | 21 |
| 2018 | 11 | 2 | 13 |
| 2017 | 15 | 6 | 21 |
| 2016 | 17 | — | 17 |
| 2015 | 8 | — | 8 |
| 2014 | 8 | — | 8 |
| 2013 | 21 | — | 21 |
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-Aignan-Grandlieu
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
- 19%
- Payment, one income
- 38%
Figures for Loire-Atlantique: Saint-Aignan-Grandlieu has no reliable figures of its own.
13.1% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 10,457
In 2022 the population grew by 5 while 11 homes were started: 0.5 new residents for every new home.
- New residents per new home, 2022
- 0.5
- Population change, 2022
- +5
3.9% of the 1,713 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 3.9%
- Empty homes
- 67