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Grande-Synthe · report

Empty homes in Grande-Synthe

3.9% of the 8,168 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.

Empty, 2023 census
3.9%
Empty homes
321

Empty homes in Grande-Synthe, census by census

Share of homes standing empty at each census, against the wider areas.

  • Grande-Synthe
  • Nord
  • France
Show the numbers
CensusGrande-SyntheNordFrance
20233.9%7.1%7.8%
20173.4%7.7%8.2%
20122.7%6.5%7.6%
20073.1%5.4%6.5%
19993.6%6.2%6.9%
199012.2%8.0%7.2%
198216.6%7.4%7.6%
19759.4%6.4%7.7%
19683.7%5.1%6.6%

Against the wider area

Share of homes standing empty in the 2023 census.

AreaEmpty
Grande-Synthe3.9%
Nord7.1%
France7.8%

INSEE counts a home as vacant when nobody lives in it: for sale, to let, already let or sold but not yet occupied, awaiting repair, or kept empty. Second homes are counted apart and are not included. The latest census is the rolling survey of 2021 to 2025.

Other reports for Grande-Synthe

At the median sale price, a 90 m² home costs €145,890. With 10% down and a 30-year mortgage, the payment is €568 a month. The HCSF caps it at 35% of a household's income.

Payment, two incomes
18%
Payment, one income
37%

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
€1,041
Owning per month
€422

Figures for Nord: Grande-Synthe has no reliable figures of its own.

10.9% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.

Licensed, 12 months
12,139

In 2022 the population fell by 108 while 42 homes were started.

Homes started, 2022
42
Population change, 2022
−108

In 2025, 57% of the homes authorised were in existing buildings: conversions, extensions and changes of use.

Homes in existing buildings, 2025
57%