Marnaz · report
Renovation in Marnaz
In 2025, 6% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 6%
Homes authorised in Marnaz: 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 | 49 | 3 | 52 |
| 2024 | 76 | 7 | 83 |
| 2023 | 16 | — | 16 |
| 2022 | 106 | 5 | 111 |
| 2021 | 43 | 8 | 51 |
| 2020 | 35 | 7 | 42 |
| 2019 | 95 | 2 | 97 |
| 2018 | 67 | — | 67 |
| 2017 | 62 | 5 | 67 |
| 2016 | 37 | — | 37 |
| 2015 | 29 | 6 | 35 |
| 2014 | 14 | 1 | 15 |
| 2013 | 13 | 8 | 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 Marnaz
At the median sale price, a 90 m² home costs €275,310. With 10% down and a 30-year mortgage, the payment is €1,072 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 22%
- Payment, one income
- 44%
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
- €1,328
- Owning per month
- €920
Figures for Haute-Savoie: Marnaz 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 grew by 44 while 40 homes were started: 1.1 new residents for every new home.
- New residents per new home, 2022
- 1.1
- Population change, 2022
- +44
8.0% of the 2,602 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 8.0%
- Empty homes
- 207