Price of a 5-room apartment and larger (T5+) in Grande-Synthe
In Grande-Synthe, the median price of a T5+ is €1,154/sq.m, i.e. about €126,940 for an average area of 110 sq.m. Data from actual DVF transactions by the DGFiP (5 sales over the 12 months ending 31 December 2025).
Price range (T5+)
What DVF sales say about the price of a T5+ in Grande-Synthe
Compared with the neighbouring towns tracked by Briveo where this property type is measured, Marcq-en-Barœul comes out at €3,170/sq.m, about 175% above. This property type takes about 4% of local activity, 5 of the 131 apartment and house sales counted over twelve months. On price per sq.m the T5+ holds position 3rd among the 4 property types Grande-Synthe measures, and position 4th on twelve-month volume. The average area of the T5+ sold, 110 sq.m, is about 35% larger than that of the apartments sold in the town, 81 sq.m. The median price, €1,154/sq.m, falls in the lower third of the town's apartment price range, from the 1st to the 3rd quartile.
Observed sale prices of a T5+ in Grande-Synthe
Of the sales of a T5+ à Grande-Synthe, half closed between 119,240 € and 129,541 €, for a median price of 125,000 €.
Half of the T5+ sold measure between 104 and 115 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 5 | €1,154/sq.m |
| 2024 | 1 | €955/sq.m |
| 2025 | 5 | €1,179/sq.m |
Source and method
- Property transfer records (DVF), published by the French tax authority (DGFiP)
- Sales recorded from 1 January 2023 to 31 December 2025
- Based on 5 sales
- Figures computed on 30 October 2026
The town
Grande-Synthe covers 21.4 km², lies between 0 and 17 m above sea level and had 20,239 inhabitants in the 2023 census.
Grande-Synthe (in West Flemish and Dutch, Groot-Sinten) is a French commune situated in the département of Nord, in the région of Hauts-de-France. With its 20,239 inhabitants, Grande-Synthe is the principal town on the outskirts of Dunkerque, part of whose port it also hosts.
The full property page of the town
From Wikidata and the Wikipedia article « Grande-Synthe », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Grande-Synthe
Price of a T5+ in nearby cities
Cities tracked by BRIVEO in the same department, median for the same property type when available.
Frequently asked questions, T5+ in Grande-Synthe
Q1What is the price of a T5+ in Grande-Synthe in 2026?
In Grande-Synthe, the median price of a T5+ is €1,154/sq.m, with a range of €999 to €1,233/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T5+ of 110 sq.m in Grande-Synthe?
For the average observed area (110 sq.m), the indicative budget goes from about €109,890 (1st quartile) to €135,630 (3rd quartile), around €126,940 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.
Q3How does the price of a T5+ compare with apartments in Grande-Synthe?
The median price of a T5+ in Grande-Synthe is about 7% below the city's apartment median (€1,235/sq.m), based on DVF sales published by the DGFiP.
Q4How many T5+ sales in Grande-Synthe?
The DGFiP DVF database records 5 sales of this type in Grande-Synthe over the last 12 months.