Collonges-sous-Salève · report
Renovation in Collonges-sous-Salève
In 2025, 46% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 46%
Homes authorised in Collonges-sous-Salève: 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 | 75 | 64 | 139 |
| 2024 | 36 | — | 36 |
| 2023 | 8 | — | 8 |
| 2022 | 30 | — | 30 |
| 2021 | 42 | — | 42 |
| 2020 | 183 | 4 | 187 |
| 2019 | 95 | — | 95 |
| 2018 | 231 | — | 231 |
| 2017 | 90 | — | 90 |
| 2016 | 28 | 7 | 35 |
| 2015 | 7 | 7 | 14 |
| 2014 | 5 | 1 | 6 |
| 2013 | 17 | — | 17 |
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 Collonges-sous-Salève
At the median sale price, a 90 m² home costs €445,860. With 10% down and a 30-year mortgage, the payment is €1,735 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 20%
- Payment, one income
- 40%
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
- €1,870
- Owning per month
- €1,479
Figures for Haute-Savoie: Collonges-sous-Salève has no reliable figures of its own.
19.9% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 8,917
In 2022 the population fell by 44 while 139 homes were started.
- Homes started, 2022
- 139
- Population change, 2022
- −44
21.9% of the 2,563 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 21.9%
- Empty homes
- 561