Saint-Cast-le-Guildo · report
Renovation in Saint-Cast-le-Guildo
In 2025, 7% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 7%
Homes authorised in Saint-Cast-le-Guildo: 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 | 50 | 4 | 54 |
| 2024 | 27 | 3 | 30 |
| 2023 | 25 | 7 | 32 |
| 2022 | 53 | 1 | 54 |
| 2021 | 62 | 21 | 83 |
| 2020 | 45 | — | 45 |
| 2019 | 40 | — | 40 |
| 2018 | 19 | 1 | 20 |
| 2017 | 24 | 1 | 25 |
| 2016 | 22 | — | 22 |
| 2015 | 42 | 1 | 43 |
| 2014 | 18 | — | 18 |
| 2013 | 19 | 1 | 20 |
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 Saint-Cast-le-Guildo
At the median sale price, a 90 m² home costs €376,920. With 10% down and a 30-year mortgage, the payment is €1,467 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 30%
- Payment, one income
- 60%
Renting a 90 m² apartment costs less each month than owning 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
- €1,123
- Owning per month
- €1,534
Figures for Côtes-d'Armor: Saint-Cast-le-Guildo has no reliable figures of its own.
7.6% more homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 4,089
In 2022 the population grew by 18 while 79 homes were started: 0.2 new residents for every new home.
- New residents per new home, 2022
- 0.2
- Population change, 2022
- +18
1.9% of the 5,575 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 1.9%
- Empty homes
- 108