Soil wild bees habitats - La Citadelle Park, Lille (France)

Map view of the Citadelle Park
Area characterisation: 

Scale of the project: object (building, etc.)

Urban density in which the NBS is implemented: high (dense city center, etc.)


Restoration of Bees Population
  • Create pollinators shelters

Restoration of wild pollinators populations (wild bees) by creating shelters, nesting sites and meadows. The overall objective of this project is to protect and provide long term benefits to biodiversity and then to all the network linked in.

NBS benefits 
  • Restoring ecosystems and their functions
  • Increase achievements of biodiversity targets
  • Increase Biodiversity
  • Increased cultural richness and biodiversity
Transferability of the result: 

Process enablers:
Knowledge drivers → Information accessibility → knowledge platforms
Knowledge drivers → Awareness → …

Process enablers:
... → ... → ...

Expected time for the NBS to become fully effective after its implementation: short (immediately to few months)

Feedback: Still well adapted

Expected life time of the intervention: more than 30 years

Dates (for project delivered): Ongoing project (2018)


Global (estimated) cost of the project: > 20 000€

Financing mechanism: cluster1 public financing

Business cluster: Social
Business model: Adopt a stewardship role
The aim of this project is to protect and provide long term benefits to biodiversity and then to all the network linked in.

NBS classification 
  • Strategies actoins (1)
  • Urban planning strategies
  • Ensure continuity with ecological network
  • Strategies action (2)
  • Urban green space management
  • Use of fauna
  • Insect hotels (for wild bees)

Alice Duquesnoy (
Olivier Damas
Plante & Cité (
Maison du Végétal, 26 Rue Jean Dixmeras, 49000 Angers

Further information

Nature4Cities ( aims to develop a knowledge diffusion around Nature-Based Solution (NBS) and a decision support platform through new collaborative models.

This project is part of the Nature4Cities's pioneer case studies database, it will feed the observatory, NBS pre-selection and replication tools, gathered into the Geocluster4NBS.

This project was chosen as a pioneer case study for the following reasons: this project create ecological habitats for soil wild bees, endangered species in our cities

Nature4Cities project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 730468.

Urban challenges
Biodiversity and urban space: 
Soil management: 
Soil management and quality
Key Performance Indicator: