Citizen oversight (e.g. boards, advisory)

The Kersentuin (Cherry Garden), an environmentally, socially and economically friendly community in Leidsche Rijn, an urbanization-from-scratch area in the west part of Utrecht, has been founded and developed by the residents themselves. The area is very popular and is seen as an interesting best practice in ideal green neighbourhood developments (ref. 4). It is a sustainable neighbourhood which integrates technical and social sustainability by building sustainable houses and creating public green spaces that promote biodiversity and social cohesion. The main characteristic of the Cherry Garden is the self-management of the green spaces which is achieved by gardening days. The project was innovative at the time of implementation and inspired many other projects (ref. 1).

The project focuses on the development of a sustainable, social and ecological park that promotes citizen participation (ref. 2), which is one of the largest city parks in the Netherlands. It combines various blue-green infrastructure elements (ref. 1). The park includes recreational facilities, a butterfly garden and special constructions that provide habitat for species. The Máximapark runs largely on volunteers and the citizen participation is the outstanding character of the development of the park (ref. 2).

The Côtes site is a natural space of 1300 hectares surrounded by the urban area of the Clermont-Ferrand area, between the cities of Clermont-Ferrand, Durtol, Nohanent, Blanzat and Cébazat. (Ref. 1). Its fragile biodiversity has required special attention from the city with several actions being taken to protect it from growing urbanization. Part of the site is a Natura 2000 area and the Clermont part of the overall site is designated a sensitive natural environment (ENS). A management plan was developed for the ENS and put in place for the years 2019-2024 (Ref. 12).

This area of Keighley is drained by a combined sewer system operated by Yorkshire Water. The natural drainage system is poorly defined.
During extreme rainfall, water from the park and adjacent housing flows down the hill and into the surrounding area and causes flooding. Storage in the form of SuDS was provided in Devonshire Park using a series of “trench trough” structures. These take the form of depressions (swales) with gently sloping sides (ref. 1). Extensive flooding in 2008 and 2012, the local resilience group has been working tirelessly to reduce flooding in Devonshire Park areas (ref 4). Up to £170m of this has been brought forward to accelerate work on ‘shovel-ready’ flood defence schemes to begin construction in 2020 or 2021. The Keighley and Ilkley constituency are one of the beneficiaries, with improvements set to be made to Natural Flood Management aspect of the Leeds Flood Alleviation Scheme, providing an immediate boost to jobs supporting the local economy (ref 4).

The Leeds Parks and Green Space Strategy is a park protection, improvement, and creation program in Leeds under their Cultural Strategy. Main priorities are set out to achieve a vision where good quality and accessible parks and green spaces are at the heart of the community and meet the needs of everyone who lives, works, visits or invests in Leeds, now and for the future (Ref 5). The Parks and Green Space Strategy looks at the contribution made to priorities nationally and locally, and how it fits within the Leeds Cultural Strategy to develop parks and green spaces (Ref 3). Consultation is being undertaken to develop a vision for the future of Leeds City Council owned and managed public parks and green spaces beyond 2020, and a strategy for how to deliver that vision over the next 10 years. The new strategy will replace the previous strategy which runs to 2020 (Ref 9).

The Sowe Valley Project was a community-based project focusing on rivers restoration. It aimed to link the local community with the Sowe River Valley and to improve the valley’s biodiversity and habitats for the benefits of people and wildlife. (Ref. 2, 6, 11-13)

The redevelopment of the Alcantara square is part of the program A SQUARE IN EACH NEIGHBOURHOOD, implemented by the Municipality of Lisbon in 2017 onward. Besides the road re-organization, the project includes specific elements. The NBS includes the creation of a public garden, cycling path, playground facilities and introduction of new trees (Ref.1). The residents of the neighbourhood were asked to participate. The participation process aimed at obtaining from the citizens an evaluation on different pertinent questions in the experience of the public space, results showed: space for pedestrians, improve green spaces and urban living (Ref.1).

The surface water system in the VINEX location Leidsche Rijn near Utrecht is a special water system. Nowhere in the Netherlands is the surface water of such a large urban area treated in such a sustainable and climate-proof manner (ref. 2). In Leidsche Rijn, a relatively new city district of Utrecht, a sustainable closed circuit water system was introduced including natural wetlands, bioswales, pumping stations and permeable paving which filters stormwater organically. It is viewed as a more sustainable solution compared to traditional stormwater infrastructure because it benefits biodiversity (e.g. by means of fish passages) and prevents the need for storm water facilities and the influx of unfiltered surface water from elsewhere (ref. 1-3).

Platenstrasse in the Ginnheim district of Frankfurt was laid out as a four-lane feeder in the 1960s. It leads through the settlement of the same name, which was formerly the housing area of ​​the US armed forces. After their withdrawal in 1994, the settlement came into municipal ownership. Many large families, often with a migration background, moved in. Wild parking lots and storage spaces were created without any quality of stay. In 2000, discussion about the redesign of the Plattenstrasse started and in 2015 it was completely transformed into a green corridor. The street space was rearranged and the paved areas were reduced to the necessary extent. Sensitive planning and respect for the established structures helped to preserve the character of the district while significantly increasing the green area with recreational facilities. (1)

"This disctrict of "Plateau de Haye" is part of the EcoQuartier approach, is one of the most ambitious urban renewal projects. In line with the development of the New Urban Renewal Program, work was carried out this year [2012] on the challenges of opening up territory to its urban and forestry environment in order to confirm the "Forest City" approach initiated by the architect-town planner Alexandre Chemetoff" (Ref. 1). It received the EcoQuartier National Grand Prize (Ref. 2). A forest, community gardens and a green corridor are being developed with a rainwater recovery system (Ref. 2). Work is set to continue until 2024 (Ref. 10). "It will first allow work to be done on the functionalities of the district : development of spaces freed up by the demolition of the Blanc Sycamore and the Purple Beech, reconversion of the Tamaris and Ombelles into housing, shops and spaces dedicated to companies, creation of green spaces , shared gardens and parking" (Ref. 10).