Montrouge · report
Renovation in Montrouge
In 2025, 0% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 0%
Homes authorised in Montrouge: 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 | 456 | 2 | 458 |
| 2024 | 74 | 4 | 78 |
| 2023 | 53 | — | 53 |
| 2022 | 21 | — | 21 |
| 2021 | 64 | 1 | 65 |
| 2020 | 51 | 2 | 53 |
| 2019 | 97 | 12 | 109 |
| 2018 | 173 | 41 | 214 |
| 2017 | 72 | — | 72 |
| 2016 | 61 | 9 | 70 |
| 2015 | 23 | 4 | 27 |
| 2014 | 16 | 22 | 38 |
| 2013 | 74 | 4 | 78 |
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 Montrouge
At the median sale price, a 90 m² home costs €652,500. With 10% down and a 30-year mortgage, the payment is €2,540 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 44%
- Payment, one income
- 88%
Owning and renting a 90 m² apartment cost about the same each month. 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
- €2,387
- Owning per month
- €2,376
Figures for Hauts-de-Seine: Montrouge has no reliable figures of its own.
2.7% more homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 12,666
In 2022 the population grew by 51 while 73 homes were started: 0.7 new residents for every new home.
- New residents per new home, 2022
- 0.7
- Population change, 2022
- +51
8.6% of the 27,375 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 8.6%
- Empty homes
- 2,348