Élancourt · report
Renovation in Élancourt
In 2025, 25% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 25%
Homes authorised in Élancourt: 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 | 3 | 1 | 4 |
| 2023 | 6 | — | 6 |
| 2022 | 86 | 100 | 186 |
| 2021 | 4 | 1 | 5 |
| 2020 | 59 | 8 | 67 |
| 2019 | 6 | 8 | 14 |
| 2018 | 119 | 2 | 121 |
| 2017 | 80 | — | 80 |
| 2016 | 321 | 2 | 323 |
| 2015 | 38 | — | 38 |
| 2014 | 171 | — | 171 |
| 2013 | 44 | — | 44 |
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 Élancourt
At the median sale price, a 90 m² home costs €269,640. With 10% down and a 30-year mortgage, the payment is €1,049 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 21%
- Payment, one income
- 43%
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
- €1,643
- Owning per month
- €888
Figures for Yvelines: Élancourt has no reliable figures of its own.
12.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 7,492
In 2022 the population grew by 17 while 3 homes were started: 5.7 new residents for every new home.
- New residents per new home, 2022
- 5.7
- Population change, 2022
- +17
4.6% of the 12,100 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 4.6%
- Empty homes
- 560