1. General information
Location and description of the intervention
City or FUA
Strasbourg
Region
Europe
Native title of the NBS intervention
Développement du jardin du Schloessel
Short description of the intervention
The Development of the Garden of the Schloessel project is part of the Natural Urban Park project undertaken by the City Council in consultation with the Strasbourg Urban Community (Ref. 3). The project aims to reduce the carbon footprint of the area by installing and redeveloping green spaces in the garden as well as providing the site with stormwater management infiltration (Ref. 1).
Address

33 Rue de la Tour
67200 Strasbourg
France

Location
The NBS is situated in an area, with clear delineation of boundaries and a specific shape (polygon). The NBS project can also have more than one area location (more than one polygon, situated close by).
Area boundary
POINT (7.7141023474184 48.576856880667)
POINT (7.7141995750383 48.576390555486)
POINT (7.7152303122576 48.576404366904)
POINT (7.715136214682 48.576893104725)
NBS area image
Source of NBS area image
No specific information available as of September 23, 2020. Stay at home orders were active in all of France from March 16, 2020 to May 11, 2020 (https://www.gouvernement.fr/en/coronavirus-covid-19).
Total area
3000000.00m²
NBS area
2500.00m²
Type of area before implementation of the NBS
Public Greenspace Area
Website of the intervention
http://www.strasbourg.eu/environnement-qualite-de-vie/espaces-publics/realisati…
Timeline of intervention
Start date of the intervention (planning process)
unknown
Start date of intervention (implementation process)
2013
End date of the intervention
2014
Present stage of the intervention
Completed
Goals of the intervention
The entire project was designed with the aim of reducing the carbon footprint of the development. In addition the garden was designed to manage stormwater by infiltration - to support the area as one of the Urban Natural Park site's at risk of flooding (Ref. 2) - and plant plants in favour of biodiversity with the establishment of 95% of endemic plant species, from the guide "Plantons local" (Ref. 1).
- Make the Tour du Schloessel the Maison du PNU and open to the public its garden and the ground floor of the building;
- Restore and manage outdoor spaces;Ref. 6):
Quantitative targets
- install 240m² of shrub, fruit growing vegetation, perennial, and cover soil (Ref. 1). Surface green areas: 2500m² (Ref. 1).
Monitoring indicators defined
Area covered (m^2) by shrubs, fruit growing vegetation, perennial, and cover soil (Ref. 1)
surface green areas in m² (Ref. 1).
Sustainability challenge(s) addressed
Climate action for adaptation, resilience and mitigation (SDG 13)
Climate change adaptation
Climate change mitigation
Water management (SDG 6)
Flood protection
Stormwater and rainfall management and storage
Green space, habitats and biodiversity (SDG 15)
Habitat and biodiversity restoration
Habitat and biodiversity conservation
Green space creation and/or management
Environmental quality
Soil quality improvement
Regeneration, land-use and urban development
Regulation of built environment
Inclusive and effective governance (SDG 16)
Inclusive governance
Social justice, cohesion and equity (SDG 10)
Environmental and climate justice
Cultural heritage and cultural diversity
Protection of historic and cultural landscape/infrastructure
Sustainable consumption and production (SDG 12)
Sustainable production
Climate change adaptation: What were the goals of the NBS?
Build resilience
Climate change adaptation: What activities are implemented to realize the conservation goals and targets?
Implement sustainable urban drainage infrastructure (e.g. to make space for water)
Increase the use of climate-resilient plant species (resistant to drought, fire, and pests)
Climate change mitigation: What were the goals of the NBS?
Reduce carbon footprint or emissions
Sequester and store carbon
Please specify "other Climate change mitigation activity"
The entire project was designed with the aim of reducing the carbon footprint of the development. (Ref 1)
Climate change mitigation: What activities are implemented to realize the conservation goals and targets?
Increase green urban nature for carbon storage (wetlands, tree cover)
Implement sustainable forest management measures to increase carbon sinks/ improve carbon storage
Habitats and biodiversity conservation: What types of conservation goals are / were defined for the NBS intervention?
Species-focused
Habitats and biodiversity conservation: What activities are implemented to realize the conservation goals and targets?
Protect and enhance urban habitats
Reduce negative impacts and avoid the alteration/damage of ecosystem
Protect species
Undertake specific measures to protect species
Undertake specific measures to protect native species
Undertake specific measures to protect valued species
Control and clean invasive alien species
Means for conservation governance
Public engagement
What types of restoration goals are / were defined for the NBS intervention?
Species-focused
What activities are implemented to realize the restoration goals and targets?
Rehabilitate and restore damaged or destroyed ecosystems
Restore species (native, endangered, or unspecified)
Restore native species
Restore valued species
Clear and control invasive alien species
Public engagement
Please specify "other Type of NBS project"
The entire project was designed with the aim of reducing the carbon footprint of the development. (Ref 1)
Implementation activities
The Schloessel tower - the centre piece of the garden - already existed in 1392 as a watchtower for the advanced fortifications of Strasbourg. The site is located in the middle of Strasbourg's 300 hectare Natural Urban Park. The Schloessel Garden project included constructing the footbridge of the Breuscheck to give access to the water, installing a "shelter of rust" sculpture, eco-friendly vegetable fences as part of a participatory project, and extensive green spaces. Work on the garden began in 2014, while work on the bridge began in 2013. The entire duration of landscaping in the garden lasted 5 months (Ref. 1). "Restoration and opening up of the garden: pedestrian footbridge, enhancement of the banks, plant fence, paving random, various courses, plant fence and plantings according to the “Plantons local” guide" (Ref. 6).
- reduce the carbon footprint of the area by installing and redeveloping green spaces in the garden as well as providing the site with stormwater management infiltration (Ref. 1).
Type of NBS project
Creation of new green areas
Ecological restoration of ecosystems
Other
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Parks and urban forests
Pocket parks/neighbourhood green spaces
Community gardens and allotments
Community gardens
Green areas for water management
Sustainable urban drainage systems
Please specify "other blue area"
Sustainable urban drainage systems (from grey infrastructure not connected to green areas)
Please specify the number of plots or allotment gardens
unspecified
What is the level of innovation / development of the NBS related to water management?
Low: Simple rain water collection intervention (rain garden, local seepage pit) or simple permeable areas
Vegetation Type
Other
Please specify other amenities offered by the NBS
" pedestrian footbridge, enhancement of the banks, plant fence, paving random, various courses, plant fence" (Ref. 6).
Amenities offered by the NBS
Other
Services
Expected ecosystem services delivered
Provisioning services
Food for human consumption (crops, vegetables)
Water (surface and ground water for drinking and non-drinking purposes)
Genetic materials from all biota
Regulating services
Flood regulation
Habitat and supporting services
Habitats for species
Maintenance of genetic diversity
Other
Cultural services
Tourism
Aesthetic appreciation
Inspiration for culture, art and design
Recreation
Mental and physical health and wellbeing
Intellectual interactions (scientific and / or educational)
Physical and experiential interactions with plants and animals
Please specify "other habitat and supporting service"
establishment of 95% of endemic plant species, from the guide "Plantons local" (Ref. 1).
Scale
Spatial scale
Sub-microscale: Street scale (including buildings)
Beneficiaries
Primary Beneficiaries
Citizens or community groups
Other
Please specify "other primary beneficiary"
pedestrian footbridge, enhancement of the banks, plant fence, paving random, various courses, plant fence and plantings according to the “Plantons local” guide" (Ref. 6).
Please specify other local relevant strategy
Part of the Urban Natural Park's plan is to reduce the high flood risk of the areas that comprise the encompassing territory of the project (including the Garden of the Schloessel) (Ref. 2).
Governance
Governance arrangements
Co-governance with government and non-government actors
Non-government actors
Private sector/Corporate/Business
Citizens or community groups
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The project is the result of the Natural Urban Park project undertaken by the Strasbourg Eurométropole in consultation with the Strasbourg Urban Community (Ref. 3). General design was carried out by the Landscape Inspection Department and the Eurométropole green spaces, while the footbridge was designed and built by the Eurométropole Structures department. Vegetable fences were created by the Haies Vives association of Alsace as part of a participatory project on the garden (Ref. 1). Project management: City of Strasbourg / Meyzaud & architects (Ref. 6).
Key actors - initiating organization
Local government/municipality
Land owners
Public space owned by the city
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Private sector/corporate actor/company
Citizens or community group
District/neighbourhood association
Land owners
Public space owned by the city
Participatory methods/forms of community involvement used
Consultation (e.g. workshop, surveys, community meetings, town halls)
Joint implementation (e.g. tree planting)
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Unknown
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Yes
Please specify the "local regulation/strategy/plan"
The site is part of a citywide Urban Natural Park project - consisted of a 3-year €14 million budget for 16 projects - to support the green belt in Strasbourg. Project's undertaken are part of a voluntary contract signed between neighborhood actors. In terms of this specific project Strasbourg Eurométropole planned and worked on the site in consultation with the Strasbourg Urban Community (Ref. 3, 5). Part of the Urban Natural Park's plan is to reduce the high flood risk of the areas that comprise the encompassing territory of the project (including the Garden of the Schloessel) (Ref. 2).
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Yes
Please specify
Due to the Natural Urban Park project area's connection to the floodplains of the Bruche to the west with Strasbourg's green belt, the Development of the Garden of the Schloessel is attached to the plan to reduce the area's flooding risks (Ref. 2).
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Unknown
If there is a relevant strategy or plan, please specify the theme / type of the plan.
Water regulation strategy
Other
Please specify other vegetation type
"plant fence and plantings according to the “Plantons local” guide" (Ref. 1)
green spaces (Ref 1)
95% of endemic plant species, from the guide "Plantons local" (Ref. 1)
eco-friendly vegetable fences (Ref 6)
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Unknown
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Unknown
Co-finance for NBS
Unknown
Co-financing governance arrangements
Unknown
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Unknown
Financing
Total cost
€100,000 - €500,000
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
€855 000 (Ref. 6)
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
€365 000 paid by the Strasbourg Eurométropole as of 2013 (Ref. 1, 3). BUDGET 2012-2017: 855 000 € City of Strasbourg (Ref. 6).
Source(s) of funding
Public local authority budget
Type of fund(s) used
Earmarked public budget
Non-financial contribution
Unknown
Business models
Green densification model
Urban offsetting model (biodiversity or water)
Which of the involved actors was motivated by this model?
Public actor (e.g. municipality)
Type of innovation
Technological
Product innovation
Please specify technological innovation
PRODUCT: This product innovation regenerates the garden site of the Schloessel Tower as a public space of the city, granting the public access to vegetation, fruits and green spaces in general. The park meanwhile provides sustainable drainage systems in the event of stormwater precipitation (Ref. 1).
Novelty level of the innovation
The innovation is copied/derived from previous initiative(s) without substantial adaptation
Please specify novelty level of the innovation
The project is as part of the citywide Natural Urban Park project modeled on the regional nature parks, such as Rueil-Malmaison (Ref. 3).
Replicability/Transferability
Unknown
Please specify Replicability/Transferability
Unknown
Impacts, benefits
Environmental impacts
Climate change
Strengthened capacity to address climate hazards/natural disasters
Water management and blue areas
Increased protection against flooding
Improved stormwater management
Green space and habitat
Increased green space area
Increased conservation or restoration of ecosystems
Reduced biodiversity loss
Increased number of species present
Increased spread of native/heirloom/open-pollinated seed
Description of environmental benefits
Water management and blue areas/address hazards:
-Increased protection against flooding/Improved stormwater management: In addition, the garden was designed to manage stormwater by infiltration - to support the area as one of the Urban Natural Park site's at risk of flooding (Ref. 2). The park meanwhile provides sustainable drainage systems in the event of stormwater precipitation (Ref. 1).

Green space and habitat:
-Increased green space area: - Surface green areas: 2500m²
-food: Tower as a public space of the city, granting the public access to vegetation, fruits and green spaces in general. (Ref 1)
-Reduction of biodiversity loss/species present: In addition the garden was designed to plant plants in favour of biodiversity with the establishment of 95% of endemic plant species, from the guide "Plantons local" (Ref. 1).
Economic impacts
Unknown
Description of economic benefits
Unknown
Social and cultural impacts
Social justice and cohesion
Improved social cohesion
Increased opportunities for social interaction
Increased access to healthy/affordable food
Increased sustainability of agriculture practices
Health and wellbeing
Improved physical health
Gain in activities for recreation and exercise
Cultural heritage and sense of place
Promotion of cultural diversity
Improvement in people’s connection to nature
Protection of historic and cultural landscape / infrastructure
Increased sense of place identity, memory and belonging
Please specify other environmental justice issue
The project aims to reduce the carbon footprint of the area by installing and redeveloping green spaces in the garden as well as providing the site with stormwater management infiltration (Ref. 1).
Description of social and cultural benefits
Social justice and cohesion:
-Increased opportunities for social interaction: "A lively place: the schloessel garden is regularly used by residents, walkers, and groups" (Ref. 6). "Several different actors and partners are already using the
places: inhabitants, artsans, artistes, associations, agents and elected officials of the Strasbourg Eurometropolis. Several associations are implementing animatons of the location" (Ref. 6).


Health and wellbeing:
-Gain in activities for recreation and exercise: "A lively place: the schloessel garden is regularly used by residents, walkers, and groups" (Ref. 6).

Cultural heritage and sense of place:
-Protection of historic and cultural landscape / infrastructure: "The rehabilitation of the building, launched by the City in November 2013 aims to open the ground floor to the public and the use of offices on the upper floors, in the dynamics of PNU" (Ref. 6).
Type of reported impacts
Achieved impacts
Indicators
- Surface green areas: 2500m²
- Reduction of flood risk through newly implemented stormwater management facilities (Ref. 1, 2)
Environmental, social and economic impacts
Water management (SDG 6)
Green space, habitats and biodiversity (SDG 15)
Analysis of specific impact categories
Job creation: The NBS created ...
No information available
Environmental justice: The implementation of the NBS project resulted in ...
Other
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
No specific information available as of September 23, 2020. Stay at home orders were active in all of France from March 16, 2020 to May 11, 2020 (https://www.gouvernement.fr/en/coronavirus-covid-19).
Methods of impact monitoring
Process of recording NBS impacts
Collection of monitoring data at specific time intervals during the project to aid evaluation
Methods used to evaluate the impacts of NBS
Observation (including virtual surveillance methods)
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Unknown
Presence of indicators used in reporting
No evidence in public records
Presence of monitoring/evaluation reports
Yes
Link to monitoring/evaluation reports
https://www.strasbourg.eu/documents/976405/1627623/Fiches-Bilan-PNU-Ill-Bruche-…
Availability of a web-based monitoring tool
No evidence in public records
Impact assessment mechanism
Name of any specific impact assessment tools
Unknown
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Unknown
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
Web links relevant to the intervention
(1) DEVELOPMENT OF THE JARDIN DU SCHLOESSEL IN KOENIGSHOFFEN
(2) A NATURAL URBAN PARK FOR STRASBOURG
(3) Long neglected, the western districts become urban natural park
(4) COMMUNES WITH MORE THAN 100 000 INHABITANTS FRENCH CAPITAL OF BIODIVERSITY
(5) AN URBAN NATURAL PARK FOR STRASBOURG
(6) ISSUES DES ATELIERS DU PARC NATUREL URBAIN ILL BRUCHE
List of references
(1) Strasbourg Eurometropole. [no date]. Aménagement du Jardin du Schloessel à Koenigshoffen. Available at: http://www.strasbourg.eu/environnement-qualite-de-vie/espaces-publics/realisations/amenagement-du-jardin-du-schloessel-koenigshoffen (Accessed: September 23, 2020).
(2) Strasbourg Eurometropole. [no date]. A Natural Urban Park for Strasbourg. Available at: http://www.en.strasbourg.eu/en/transport-and-environment/strasbourg-and-biodiversity/a-natural-urban-park-for-strasbourg/ (Accessed: September 23, 2020).
(3) Marty, Marie. (2013). Longtemps délaissés, les quartiers ouest deviennent parc naturel urbain. Available at: http://www.rue89strasbourg.com/conseil-municipal-longtemps-delaisses-les-quartiers-ouest-deviennent-parc-naturel-urbain-39597 (Accessed: September 23, 2020).
(4) Piparta, Béatrice. (2014). Aménagement d'un parc naturel urbain. Available at: http://www.capitale-biodiversite.fr/experiences/amenagement-dun-parc-naturel-urbain (Accessed: September 23, 2020).
(5) Strasbourg Eurometropole. [no date]. UN PARC NATUREL URBAIN POUR STRASBOURG. Available at: https://www.strasbourg.eu/parc-naturel-urbain (Accessed: September 23, 2020).
(6) Strasbourg Eurometropole (2018). "REALISATIONS 2012-2017 ISSUES DES ATELIERS DU PARC NATUREL URBAIN ILL BRUCHE". Available at: https://www.strasbourg.eu/documents/976405/1627623/Fiches-Bilan-PNU-Ill-Bruche-20180914.pdf/18ebfcab-d2b1-9a56-eb1b-41c66b939b9f (Accessed: September 23, 2020).
Attachments
Attachment Size
Ref. 6 (2.4 MB) 2.4 MB
Comments and notes
Comments
2020 comments::
Photos from Ref. 1 which were previously uploaded are left since they cannot be retrieved.
Additional insights
2020 comments:
The evaluation report proposed a number of measures to be undertaken going forward (Ref. 6):
"WHAT TO REMEMBER FOR THE NEXT CHARTER?
- Put in place a sign to facilitate access;
- Install new bicycle poles and invest in the garden;
- Make this place known as a flagship site of PNU, for example
of technical, landscape, urban experience in
rehabilitation of a garden, a building, and animation;
- Rely on this place to design and energize the future
PNU: professionals, café associative, animations
- Establish a suitable collaborative management method
Pictures of the NBS
/sites/default/files/nbs/images/dgs1.jpg
/sites/default/files/nbs/images/dgs1-1.jpg
/sites/default/files/nbs/images/dgs1-3.jpg
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Public Images
A building in a field beside a historical photo of the area
https://www.strasbourg.eu/documents/976405/1627623/Fiches-Bilan-PNU-Ill-Bruche-20180914.pdf/18ebfcab-d2b1-9a56-eb1b-41c66b939b9f
A building with a paved path beside a photo of a group of people
https://www.strasbourg.eu/documents/976405/1627623/Fiches-Bilan-PNU-Ill-Bruche-20180914.pdf/18ebfcab-d2b1-9a56-eb1b-41c66b939b9f