Boissy-Saint-Léger · report
Renovation in Boissy-Saint-Léger
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 Boissy-Saint-Léger: 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 | 171 | 3 | 174 |
| 2024 | 179 | 11 | 190 |
| 2023 | 13 | 4 | 17 |
| 2022 | 124 | 7 | 131 |
| 2021 | 181 | 1 | 182 |
| 2020 | 8 | 12 | 20 |
| 2019 | 218 | 3 | 221 |
| 2018 | 108 | 5 | 113 |
| 2017 | 132 | 4 | 136 |
| 2016 | 137 | 4 | 141 |
| 2015 | 333 | 21 | 354 |
| 2014 | 78 | 5 | 83 |
| 2013 | 134 | 3 | 137 |
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 Boissy-Saint-Léger
At the median sale price, a 90 m² home costs €310,950. With 10% down and a 30-year mortgage, the payment is €1,210 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 30%
- Payment, one income
- 61%
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
- €1,682
- Owning per month
- €1,069
Figures for Val-de-Marne: Boissy-Saint-Léger has no reliable figures of its own.
9.9% more homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 12,010
In 2022 the population fell by 10 while 117 homes were started.
- Homes started, 2022
- 117
- Population change, 2022
- −10
5.8% of the 7,469 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.8%
- Empty homes
- 436