The Pôle de l’Arbre Urbain (PAU) is a shared place in Saint-Jacques-de-la-Lande, near Rennes, dedicated to urban trees, landscapes and the role of vegetation in city life. Bringing together an association, professionals, residents, community groups and local organisations, it encourages people to learn, meet, work and take action to understand and protect urban green heritage.

PAU offers a range of spaces for hire, including meeting and training rooms, coworking areas, offices and venues for seminars, workshops and events. Its programme is open to professionals and the wider public, with activities such as landscape gatherings, themed cafés, meetings, workshops and other events. The centre also provides professional training focused on trees, landscapes and urban vegetation.

Visitors can access documentary resources, a games library and advice sessions related to trees and landscapes. Several organisations working in these fields share the site, contributing to its collaborative character. Through its activities, workspaces and knowledge resources, PAU creates opportunities for the local community and practitioners to connect with urban nature and contribute to its future.