Boulogne-sur-Mer · report
Renovation in Boulogne-sur-Mer
In 2025, 64% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 64%
Homes authorised in Boulogne-sur-Mer: 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 | 25 | 44 | 69 |
| 2024 | 430 | 46 | 476 |
| 2023 | 6 | 51 | 57 |
| 2022 | 71 | 10 | 81 |
| 2021 | 92 | 17 | 109 |
| 2020 | 50 | 10 | 60 |
| 2019 | 1 | 11 | 12 |
| 2018 | 87 | 24 | 111 |
| 2017 | 17 | 14 | 31 |
| 2016 | 86 | 19 | 105 |
| 2015 | 127 | 12 | 139 |
| 2014 | 307 | 9 | 316 |
| 2013 | 32 | 16 | 48 |
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 Boulogne-sur-Mer
At the median sale price, a 90 m² home costs €150,750. With 10% down and a 30-year mortgage, the payment is €587 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 18%
- Payment, one income
- 36%
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
- €1,031
- Owning per month
- €559
Figures for Pas-de-Calais: Boulogne-sur-Mer has no reliable figures of its own.
11.4% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 6,067
In 2022 the population fell by 500 while 92 homes were started.
- Homes started, 2022
- 92
- Population change, 2022
- −500
8.5% of the 23,483 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 8.5%
- Empty homes
- 1,992