Guichen · report
Renovation in Guichen
In 2025, 2% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 2%
Homes authorised in Guichen: 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 | 126 | 3 | 129 |
| 2024 | 58 | — | 58 |
| 2023 | 29 | 5 | 34 |
| 2022 | 74 | — | 74 |
| 2021 | 118 | 12 | 130 |
| 2020 | 66 | 1 | 67 |
| 2019 | 78 | 2 | 80 |
| 2018 | 138 | 7 | 145 |
| 2017 | 75 | 7 | 82 |
| 2016 | 54 | 3 | 57 |
| 2015 | 55 | 6 | 61 |
| 2014 | 141 | 5 | 146 |
| 2013 | 99 | 1 | 100 |
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 Guichen
At the median sale price, a 90 m² home costs €226,890. With 10% down and a 30-year mortgage, the payment is €883 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 19%
- Payment, one income
- 38%
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
- €1,040
- Owning per month
- €866
Figures for Ille-et-Vilaine: Guichen has no reliable figures of its own.
17.6% more homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 12,128
In 2022 the population grew by 209 while 111 homes were started: 1.9 new residents for every new home.
- New residents per new home, 2022
- 1.9
- Population change, 2022
- +209
5.2% of the 4,377 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.2%
- Empty homes
- 227