Carquefou · report
Renovation in Carquefou
In 2025, 11% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 11%
Homes authorised in Carquefou: 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 | 55 | 7 | 62 |
| 2024 | 68 | 3 | 71 |
| 2023 | 301 | 2 | 303 |
| 2022 | 91 | 4 | 95 |
| 2021 | 42 | 3 | 45 |
| 2020 | 58 | 5 | 63 |
| 2019 | 258 | 10 | 268 |
| 2018 | 207 | 16 | 223 |
| 2017 | 250 | 15 | 265 |
| 2016 | 195 | 33 | 228 |
| 2015 | 102 | 26 | 128 |
| 2014 | 512 | — | 512 |
| 2013 | 230 | 1 | 231 |
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 Carquefou
At the median sale price, a 90 m² home costs €295,920. With 10% down and a 30-year mortgage, the payment is €1,152 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 22%
- Payment, one income
- 45%
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
- €1,416
- Owning per month
- €1,094
Figures for Loire-Atlantique: Carquefou 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 386 while 98 homes were started: 3.9 new residents for every new home.
- New residents per new home, 2022
- 3.9
- Population change, 2022
- +386
5.1% of the 10,521 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.1%
- Empty homes
- 537
Public bodies signed €1.5M of housing works here in 2024, and €1.5M since 2024.
- Signed in 2024
- €1.5M
- Per resident, 2024
- €71