Nature Based Solutions - Implementation Models Database

Pioneer Case

Quay Gardens

A short description of the NBS project

Implementation of vegetated rafts as habitats for local species on a city center river. Artificial shelters for fauna (nesting box, insect hotels, artificial spawning areas…) and vegetation supports were installed. Wooden terraces were also installed to allow citizens to enjoy and observe 1. The objectives of the intervention are to favor 1 and develop environmental education.

NBS Implementation context
Location France, Nantes
Latitude 47.220984
Longitude -1.552654
Status Project delivered
Dates 2013.0
Description of the NBS
NBS Scale neighbourhood
NBS Impacts scale neighbourhood
Urban density/ Soil consumption high (dense city center, etc.)
Combined with other(s) environmental friendly solution(s)?
if other
NBS Typology
Open the NBS Solution Explorer
NBS Uban Challenges
Climate Issues Climate mitigation
Climate adaptation
Other 0;
Urban water management and quality Urban water management and quality
Flood management
Other 0
Air Quality Air quality at district/city scale
Air quality locally
Other 0
Urban Space and Biodiversity Biodiversity
Urban space design
Urban space management
Other 0;
Urban Regeneration and Soil Air quality at district/city scale
Other 0
Resource efficiency Food, energy and water
Raw materials
Other 0;
Public health and well-being Acustic
Quality of life
Other 0;
Environmental justice and social cohesion Environmental Justice: Recognition
Environmental Justice: Procedural Justice
Environmental Justice: Distributional Justice
Environmental Justice: Capabilities
Environmental Justice: Responsibility
Social Cohesion
Other 1;0;
Urban planning and governance Urban planning and form
Governance in planning
Other 0;
People Security Control of crimes
Control of extraordinary events
Other 0
Green economy Circular economy
Bioeconomy activities
Direct economic value of NBS
Other 0;
Stakeholder and Governance
Who Started this initiative? A public institution, a local organization (city or metropolitan)
Contracting Authority Nantes municipality
Project manager (leader and main partners): entities names, and know-how involved Leader: Nantes municipality Main partner: EDENN (financial partner)
Who (else) was involved in the project ? (Inhabitants, local association, etc.) The idea of this project emerges from an association and it has been then implemented by Nantes municipality.
More detail on the process and the role of the different stakeholders (How did it happen?) Groupe Mammalogique Breton (environmental protection association)
OPTIONAL Considering the actual impacts, who are the primary beneficiaries of the project. Citizens Local 1
Cluster Governance Model Description
cluster5_network_governanceCollaborative_governanceBased on collaborative approach between Nantes municipality and associations
Global Estimated cost of the project 50k€ - 200k€
Cluster cluster1_public_financing
FM Other
Description of the financing mechanism Nantes municipality financing (Parks and gardens department)
Business Model
Class Type Description
SocialAdopt a stewardship roleThe aim of this project is to contribute to sustaining and developing the well-being of all the network (1 and citizens) using collaborative approach.
OrganizationalDevelop scale-up solutions
Temporal Factor
Expected time for the NBS to be fully effective after its implementation short (immediately to few months)
Expected life time of the intervention around 10 years
Already feedbacks on the project? In case, the project has already been adapted to new requisites, please explain the modifications brought
Success and limiting factors
Process Enablers
Class Subclass Type Description
Governance_driversProcess_efficienciesCollaborationCollaboration between 2 municipality departments
Process Inhibitors
Class Subclass Type Description
Knowledge_barriersUncertaintyOperation_unknowExperimentation needed to find technical method to implement this project.
What makes this project a pioneer?
Field The_implementation
Brief description of the innovativeness This project is both thought for 1 and for citizens and finaly allows to cohabitation between them
Has the project received a prize, an award?
Has the project received a media coverage? (in reviews, in press, etc.) ???, 2013, Nantes. Les jardins à quai prennent vie ce soir, Ouest-France Frédéric Brénon, 2013, Des jardins flottants en ville, 20minutes
IM Keywords
  • floating garden

  • ecological continuity