Real estate prices Grande-Synthe
In Grande-Synthe, houses sell at a median €1,661 per square metre, with 131 sales in twelve months.
The Grande-Synthe market is read here from the DGFiP record of actual sales, not from asking prices. Houses carry the local market with 104 sales over twelve months, against 27 apartments.
These figures cover all the sales recorded in the commune (INSEE code 59271), under its postal code 59760.
Grande-Synthe, 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.
A little history
Grande-Synthe was initially a rural village of farms surrounded by fields won from the sea over the centuries. The first mention of the Synthes dates from 648. The word Synthe is thought to be related to the Dutch sint meaning 'saint' and the Latin sanctus meaning 'sacred', on account of a relic. From the 8th century onwards, the Benedictines channelled the waters by making use of wateringues, which drain the soil and flow into rivers such as the Aa, or directly into the sea.
Places to see in Grande-Synthe
- The history of the Synthoises churches
- The église Saint-Jacques de Grande-Synthe
- The église Saint-Joseph de Grande-Synthe
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
Market dynamics, Grande-Synthe
What the sales show in Grande-Synthe
The median house price in Grande-Synthe stands at €1,661 per square metre. Apartments come out at €1,235.
The average house sold in Grande-Synthe covers 94 square metres, putting a typical transaction near €155,632. That is an order of magnitude drawn from averages, not the valuation of any particular property.
Prices by property type in Grande-Synthe
Prices by property type in Grande-Synthe
By property type in Grande-Synthe, T3 at €1,714/m², T4 at €1,081/m², T5+ at €1,154/m².
The T3 carries the highest price per square metre and the T4 the lowest, a gap of 59 %. Small units usually cost more per square metre than large ones, because the price of a kitchen and a bathroom is spread over fewer metres.
The house is what changes hands most often here, with 104 sales over twelve months. It is therefore the type with the most reference points, and the one where a price is hardest to argue against.
Homes for sale in Grande-Synthe on BRIVEO
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Selling in Grande-Synthe
Pricing in Grande-Synthe starts from the median of €1,661 per square metre, then adjusts for what makes your property differ from the average one sold here.
With 131 sales a year, Grande-Synthe is regular without being deep. Positioning matters more here than in a dense market, because a buyer who steps back is not immediately replaced.
Briveo values your Grande-Synthe property from the same DVF file, keeping only sales of comparable properties closest to your address, free of charge and with no obligation, then supports the sale through to the deed.
Buying in Grande-Synthe
Acquisition costs are budgeted on top of the price, around 8 % on an existing property, around 3 % on a new one. These are orders of magnitude; the notary computes the exact amount.
The negotiation turns on the property itself and on comparable sales nearby (works, energy rating, aspect, charges).
Are you an estate agent in Grande-Synthe?
Briveo recruits independent sales agents in every municipality, in transactions only, under the principal's professional licence, with the pay and the monthly cost stated before signing.
Start with BriveoGrande-Synthe and the towns around it
Among the towns tracked by BRIVEO in the same department, on the median apartment price, Marcq-en-Barœul 177 % above. Those are the gaps a buyer widening their search area actually meets.
Latest published sales in Grande-Synthe
The housing sales recorded by the French tax administration in the municipality, newest first, street without number, one dwelling per sale, block sales set aside.
| Date | Type | Surface | Rooms | Price | Price per sq m | Street |
|---|---|---|---|---|---|---|
| 31 December 2025 | House | 85 sq m | 4 | €135,000 | €1,588 per sq m | ALL DES ANEMONES |
| 30 December 2025 | House | 57 sq m | 4 | €89,250 | €1,566 per sq m | RUE DE LAMBARENE |
| 29 December 2025 | Flat | 71 sq m | 3 | €90,400 | €1,273 per sq m | ALL FRANCISCO FERRER |
| 29 December 2025 | House | 106 sq m | 4 | €155,650 | €1,468 per sq m | RUE DE PROVENCE |
| 29 December 2025 | House | 85 sq m | 4 | €135,000 | €1,588 per sq m | ALL DES ALGUES |
| 23 December 2025 | House | 95 sq m | 5 | €117,360 | €1,235 per sq m | AV DE SUWALKI |
| 23 December 2025 | Flat | 73 sq m | 4 | €79,000 | €1,082 per sq m | RUE PERRIN |
| 22 December 2025 | House | 82 sq m | 4 | €153,500 | €1,872 per sq m | RUE REAUMUR |
| 18 December 2025 | House | 105 sq m | 5 | €187,400 | €1,785 per sq m | VOIE HENRI DUNANT |
| 18 December 2025 | House | 115 sq m | 5 | €167,000 | €1,452 per sq m | RUE ALEXANDER FLEMING |
| 17 December 2025 | House | 81 sq m | 4 | €137,000 | €1,691 per sq m | RUE JULES VALLES |
| 16 December 2025 | House | 99 sq m | 5 | €150,000 | €1,515 per sq m | RUE DE PROVENCE |
| 12 December 2025 | House | 80 sq m | 5 | €147,250 | €1,841 per sq m | RUE DE PICARDIE |
| 12 December 2025 | House | 83 sq m | 4 | €175,000 | €2,108 per sq m | RUE DU QUAI AUX FLEURS |
| 11 December 2025 | House | 69 sq m | 3 | €160,550 | €2,327 per sq m | AV DE L ANCIEN VILLAGE |
| 9 December 2025 | House | 90 sq m | 4 | €350,000 | €3,889 per sq m | AV DE PETITE SYNTHE |
| 8 December 2025 | House | 88 sq m | 5 | €137,750 | €1,565 per sq m | RUE MOZART |
| 1 December 2025 | House | 91 sq m | 3 | €120,000 | €1,319 per sq m | RUE DE BAILLEUL |
| 28 November 2025 | House | 85 sq m | 5 | €161,500 | €1,900 per sq m | RUE LARIBOISIERE |
| 28 November 2025 | Flat | 95 sq m | 4 | €127,072 | €1,338 per sq m | RUE DENIS PAPIN |
Frequently asked questions, real estate Grande-Synthe
Q1What is the price per square metre in Grande-Synthe?
The median house price is €1,661 per square metre, read from sales published in the DGFiP DVF record. Apartments come out at €1,235.
Q2How many properties change hands in Grande-Synthe?
131 sales were recorded over twelve months, 27 apartments and 104 houses.
Q3How much does a T3 cost in Grande-Synthe?
The median T3 price in Grande-Synthe is €1,714 per square metre, over 12 sales in twelve months.
Q4What are the acquisition costs in Grande-Synthe?
Around 8 % of the price on an existing property and around 3 % on a new one. They cover transfer duties, the land registry contribution and the notary’s fees, and the notary computes the exact amount.
Q5How much does a typical property cost in Grande-Synthe?
The average house sold covers 94 square metres, placing a typical transaction near €155,632. Your own property is worth what its condition, location and energy rating make it worth.
Q6How do I get my Grande-Synthe property valued?
Briveo produces a free valuation from the same DVF file, using sales of comparable properties closest to your address, in about two minutes and with no obligation, then supports the sale through to the deed.
Property prices in the cities tracked by BRIVEO in the same department
Valuation in these cities
Selling in Grande-Synthe?
Value your property in Grande-Synthe. The Briveo valuation, free and with no commitment, starts from DVF sales of properties of the same type and similar size, as close to your address as possible.
Of the sales recorded in Grande-Synthe over twelve months, 79 % are houses. Sell your house or apartment in Grande-Synthe with an online estate agency. Sell your property at 0%, 2% or 5%. Publish for free (0%, no mandate), or let BRIVEO sell for you. Fees are due only when the deed is signed. Written mandate compliant with the Hoguet Act, numbered and entered in the register of mandates.
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 131 sales
- Figures computed on 30 October 2026