Groupe BECI was born in Dunkerque in 1974, founded by four brothers in a town that had only just finished rebuilding itself. Half a century on, the company is still family-owned and still run from the Côte d’Opale. That is a structural fact, not a line from a brochure: it explains why the group goes back into its own buildings ten years after handing them over, why it keeps part of what it builds, and why it talks about property with a human face without turning the phrase into a slogan.
Reinventing, here, does not mean starting again from scratch. It means taking on a brownfield site rather than opening up a field, slipping a medical centre beneath flats, bringing disused baths back into service, setting a retirement scheme against the town centre instead of relegating it to the outskirts. The environmental transition is not a separate chapter of the job: it is the land you choose, the materials you use, the lifespan you build for. Thirty schemes give the exact measure of it here.
250,000m²Of business space
20,000m²Of offices
4,000Homes
2,000Jobs created
+50yearsOf family history
Fifty years of lines
1974 → 2026 · Scroll to move along the timeline
1974
Four brothers, one town
Dunkerque
Four brothers found a building firm in Dunkerque. The town has only just come out of thirty years of reconstruction: more than two thirds destroyed during the war, it was rebuilt in concrete, on a grid and in a hurry. It is that context — a town that had to remake everything — that gives the group its first instinct: build for people you know, in a town where you stay. Fifty years on, the company is still family-owned and still based in Dunkerque.
The early decades
The school of the Côte d’Opale
Dunkerque · Malo-les-Bains · Gravelines
Before it was a developer, BECI was a builder on the Côte d’Opale. The territory is narrow and precise: Dunkerque and its outskirts, Malo-les-Bains and its promenade, Gravelines and its ramparts, Saint-Omer and Berck a little further off. You build here with the wind, the sand and a low raking light that forgives no slapdash façade. It is these years, with no spectacular archive to show for them, that build the know-how: the address book of local trades, the knowledge of the ground, the habit of running into your clients at Saturday market.
The 1990s and 2000s
Buildings to work in
Calais · Dunkerque · Longuenesse · Coquelles
Somewhere in those years the group notices that the coast is short of something other than housing: premises to work in. EUROCAP grows out of that observation and develops a product that is unspectacular and very useful — the business park, with its adaptable workshop units, let to trades and small firms and managed directly, with no middleman. Calais, Dunkerque, Longuenesse, then Coquelles: four parks that fund what comes next and that teach the group a trade it will never let go of, that of long-term owner. You do not build a building you are going to sell in the same way as a building you are going to keep for thirty years.
The 2000s
From the field to the letterbox
Flandre and Côte d’Opale
Two brands complete the chain. STILNOR moves upstream: buying land, servicing it, laying out streets and dividing plots — in other words deciding the shape of a neighbourhood before a single house exists. ONE HOME moves downstream and builds those houses, one at a time, for families who are often buying the project of a lifetime. Between the two, the group now controls the whole journey from the field to the letterbox. It is also in this period that the vocabulary of the house settles in — a roof over your head, a little patch of ground — a familiar tone that has never left it.
2010
The scheme that changed the scale
Dunkerque, Grand Large quarter
Dunkerque decides to open its town back on to the water: the Grand Large, a stretch of port land caught between the dock and the sea, becomes a place to live. Nicolas Michelin draws gabled buildings there that quote the harbour houses without ever copying them; the gables of the Grand Large will earn his practice a special mention in the 2010 Équerre d’argent prize. For BECI it means ten thousand square metres and one hundred and fifty-four homes — but above all a first collaboration with an architect of national standing on a closely watched scheme. Nothing was ever quite the same afterwards.
2015
Moving up to the metropolis
Métropole européenne de Lille
The group crosses the forty kilometres that separate Dunkerque from Lille. It is further than it looks: the metropolitan area has its own rules, its own practices, its industrial brownfield sites and a pressure on land that the coast knows nothing about. BECITY Nord sets up there in 2015 and learns major refurbishment as much as new build — taking on an existing building calls for a different kind of patience from building on a clear site. Twelve schemes now carry that signature across the metropolitan area, from intimate housing to a nine-thousand-square-metre office building.
2018
The Pays basque and the Bordeaux country
Anglet · Lacanau
In 2018 BECITY establishes itself in Nouvelle-Aquitaine: the Basque coast first, with Anglet, then the Gironde shoreline, with Lacanau. Two places where the question is not building more but building right, between tourist pressure, the scarcity of land and the demands of the landscape. The vocabulary changes — timber, cast shade and orientation take the place of brick and shelter from the north wind — but the standard stays the same. Three schemes have come out of the ground there in less than ten years.
The 2020s
A detour into Picardie
Amiens
Amiens is neither Flandre nor the Lille metropolitan area: it is Picardie, another brick, another rhythm, a city of water and gardens. The group opens a fourth office there for a single scheme — forty-nine homes and a shop, entrusted to a practice from Amiens. It is very little, and that is precisely the method: you do not arrive in a place with a catalogue, you arrive with one project and an architect from here.
2024
Fifty years
Four regions
Fifty years after it was founded, the group completes in a single year TRACKS in Lille, BABYLONE in Villeneuve-d’Ascq, EKLA and BIGUEYRIE in Anglet, MÉROVÉE in Saint-Omer. Four regions, five schemes, one house — and still the same family at the helm, which remains rare in a trade where groups change shareholder every ten years. The anniversary falls just as the industry is reconfiguring itself: rising land costs, restraint in land take, reuse, brownfield conversion. So many constraints that the group was already practising without needing to name them.
2029
An entire quarter
Gravelines
At Gravelines, between Vauban’s fortified town and the marina, the largest scheme in the group’s history is taking shape: nearly twenty-four thousand square metres, a little under thirteen hundred homes, flats, semi-detached homes, houses, a retirement development and shops. This is no longer a building, it is a quarter — with everything that implies in terms of long timescales, consultation and responsibility. Detailed design is under way, with completion targeted for 2029. Fifty-five years after a first Dunkerque building firm, twenty kilometres down the coast.
1974
Reinventing.
The Lille metropolitan area
The Lille metropolitan area and BECITY have been a love story since 2015, and it has produced a great many fine schemes! Between new-build projects and major refurbishments, BECITY has honed its craft on the home ground of the Flemish capital.
12 schemes34,971 m² built2015 since
Breaking the mould.
The Pays basque and the Gironde coast
In the south-west, wine is not the only thing that improves with age! Ideas and values do too. Established here since 2018, BECITY has delivered varied and ambitious schemes across the region — short-stay accommodation, offices and houses, from the Basque coast to the Médoc shoreline.
3 schemes4,847 m² built2018 since
Cultivating what matters.
The roots
On the Côte d’Opale there are long dune-backed beaches to stop the waves… and BECITY’s roots! This is where it all began, with the first property schemes. BECITY has since found other horizons, without ever forgetting the values of the people here.
14 schemes82,397 m² built
Prendre pied.
A detour to Amiens
In Amiens the group has a single scheme — and that is exactly as it should be. You do not turn up in Picardie with a catalogue: you turn up with one project, an architect from here, and the wish to understand a city of water and gardens before laying the first brick.
1 schemes2,497 m² built
The archive
Thirty schemes, their architects, their floor areas and how far along they are. The collection can be browsed as plates or as an index.