Les Essarts-le-Roi · report
Renovation in Les Essarts-le-Roi
In 2025, 6% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 6%
Homes authorised in Les Essarts-le-Roi: 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 | 82 | 5 | 87 |
| 2024 | 1 | 1 | 2 |
| 2023 | 5 | 6 | 11 |
| 2022 | 24 | 5 | 29 |
| 2021 | 7 | 2 | 9 |
| 2020 | 9 | 1 | 10 |
| 2019 | 16 | 7 | 23 |
| 2018 | 68 | — | 68 |
| 2017 | 8 | 2 | 10 |
| 2016 | 8 | 1 | 9 |
| 2015 | 3 | — | 3 |
| 2014 | 4 | — | 4 |
| 2013 | 5 | 1 | 6 |
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 Les Essarts-le-Roi
At the median sale price, a 90 m² home costs €295,560. With 10% down and a 30-year mortgage, the payment is €1,150 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 21%
- Payment, one income
- 42%
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
- €1,552
- Owning per month
- €921
Figures for Yvelines: Les Essarts-le-Roi 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 59 while 2 homes were started: 29.5 new residents for every new home.
- New residents per new home, 2022
- 29.5
- Population change, 2022
- +59
5.7% of the 3,030 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 5.7%
- Empty homes
- 172