Cognin · report
Renovation in Cognin
In 2025, 63% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 63%
Homes authorised in Cognin: 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 | 3 | 5 | 8 |
| 2024 | 18 | — | 18 |
| 2023 | 313 | 14 | 327 |
| 2022 | 157 | 1 | 158 |
| 2021 | 6 | 3 | 9 |
| 2020 | 50 | — | 50 |
| 2019 | 205 | — | 205 |
| 2018 | 148 | 13 | 161 |
| 2017 | 119 | — | 119 |
| 2016 | 3 | — | 3 |
| 2015 | 40 | — | 40 |
| 2014 | 201 | 2 | 203 |
| 2013 | 56 | 3 | 59 |
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 Cognin
At the median sale price, a 90 m² home costs €283,410. With 10% down and a 30-year mortgage, the payment is €1,103 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 25%
- Payment, one income
- 51%
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
- €1,481
- Owning per month
- €983
Figures for Savoie: Cognin has no reliable figures of its own.
0.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 5,181
In 2022 the population grew by 225 while 5 homes were started: 45.0 new residents for every new home.
- New residents per new home, 2022
- 45.0
- Population change, 2022
- +225
6.1% of the 3,550 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 6.1%
- Empty homes
- 215