Méry-sur-Oise · report
Renovation in Méry-sur-Oise
In 2025, 41% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 41%
Homes authorised in Méry-sur-Oise: 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 | 166 | 116 | 282 |
| 2024 | 64 | 2 | 66 |
| 2023 | 4 | 4 | 8 |
| 2022 | 27 | 7 | 34 |
| 2021 | 8 | 1 | 9 |
| 2020 | 10 | 1 | 11 |
| 2019 | 48 | 2 | 50 |
| 2018 | 24 | 1 | 25 |
| 2017 | 9 | 55 | 64 |
| 2016 | 79 | 4 | 83 |
| 2015 | 22 | 11 | 33 |
| 2014 | 8 | 3 | 11 |
| 2013 | 200 | 1 | 201 |
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 Méry-sur-Oise
At the median sale price, a 90 m² home costs €310,410. With 10% down and a 30-year mortgage, the payment is €1,208 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 25%
- Payment, one income
- 49%
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
- €1,600
- Owning per month
- €1,089
Figures for Val-d'Oise: Méry-sur-Oise has no reliable figures of its own.
32.3% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 4,869
In 2022 the population fell by 32 while 23 homes were started.
- Homes started, 2022
- 23
- Population change, 2022
- −32
7.6% of the 4,140 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 7.6%
- Empty homes
- 314