Marly-le-Roi · report
Renovation in Marly-le-Roi
In 2025, 96% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 96%
Homes authorised in Marly-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 | 1 | 24 | 25 |
| 2023 | 41 | 13 | 54 |
| 2022 | 1 | 1 | 2 |
| 2021 | 49 | 65 | 114 |
| 2020 | 38 | 3 | 41 |
| 2019 | 125 | — | 125 |
| 2018 | 3 | 3 | 6 |
| 2017 | 202 | 35 | 237 |
| 2016 | 20 | 31 | 51 |
| 2015 | 70 | — | 70 |
| 2014 | 2 | 4 | 6 |
| 2013 | 27 | 1 | 28 |
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 Marly-le-Roi
At the median sale price, a 90 m² home costs €354,150. With 10% down and a 30-year mortgage, the payment is €1,378 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 23%
- Payment, one income
- 46%
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
- €1,872
- Owning per month
- €1,204
Figures for Yvelines: Marly-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 137 while 7 homes were started: 19.6 new residents for every new home.
- New residents per new home, 2022
- 19.6
- Population change, 2022
- +137
6.3% of the 8,338 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 6.3%
- Empty homes
- 529