The redevelopment project of Les Halles in Saint-Jean-de-Luz, a landmark building in this port town in the French Basque Country, focused on revitalising the historic market square and the surrounding streets. Since its construction in 1884, the covered market hall has been the social, commercial, and cultural heart of the city for over a century.

To enhance the character of the site, plane trees were selected for their attractive appearance, shade-providing canopy, longevity, and suitability for urban conditions. These trees reflect the local tradition of green town squares and add structure to the public space, offering a clear link to the past. Van den Berk supplied large, mature specimens, which immediately gave the square a lush, established, and tranquil atmosphere.

The design of the project was guided by three main principles: more greenery, improved pedestrian comfort, and the reactivation of the square as a place for social interaction. The old paving was replaced with natural stone, and generous tree pits were created to support healthy tree growth. Street furniture—benches, seating areas, and lighting—was thoughtfully arranged to encourage walking, pausing, and social encounters.

Vehicle traffic was significantly reduced or rerouted, creating a predominantly shared space where pedestrians have priority. Underground car parks nearby provide ample parking without burdening the square itself. Around the plane trees, pleasant gathering spots have emerged where people meet daily, enjoy café terraces, or simply pass through. On market days, stalls are set up around Les Halles, which remains open every day for the sale of fresh produce.

Thanks to this approach, the square has been transformed into a vibrant, green, and welcoming public space that once again plays a central role in the daily life of Saint-Jean-de-Luz.