Treffiagat · report
Renovation in Treffiagat
In 2025, 14% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 14%
Homes authorised in Treffiagat: 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 | 12 | 2 | 14 |
| 2024 | 48 | — | 48 |
| 2023 | 11 | 3 | 14 |
| 2022 | 39 | — | 39 |
| 2021 | 9 | 2 | 11 |
| 2020 | 7 | 20 | 27 |
| 2019 | 13 | — | 13 |
| 2018 | 15 | — | 15 |
| 2017 | 9 | — | 9 |
| 2016 | 10 | — | 10 |
| 2015 | 7 | 1 | 8 |
| 2014 | 5 | — | 5 |
| 2013 | 9 | — | 9 |
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 Treffiagat
At the median sale price, a 90 m² home costs €207,900. With 10% down and a 30-year mortgage, the payment is €809 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 18%
- Payment, one income
- 36%
Figures for Finistère: Treffiagat has no reliable figures of its own.
8.9% more homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 6,778
In 2022 the population fell by 9 while 14 homes were started.
- Homes started, 2022
- 14
- Population change, 2022
- −9
2.0% of the 1,885 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 2.0%
- Empty homes
- 38