Other

The NBS is a large green roof on top of "ATRIUM PARK", which is a modern neighbourhood of 4 buildings in Bydgoszcz. The spacious green park of 5,000 m2 is located on the roof of a multi-storey garage that extends under all buildings. It is divided into zones: a playground, an area for active recreation, and the relaxation area. The description of the project stresses its beneficial effects on the health and well-being of the residents [1].

3000 trees were planted on 7 decares of land by 500 volunteers in park Zapaden on Earth day (22 April) in 2017. The initiative was supported by the Municipality of Sofia, and had the aim of making the city cleaner, greener, and more beautiful. The initiative also compensated for the illegal logging which had taken place in the park. (Ref. 1; Ref. 2; Ref. 3)

'Proeftuin Erasmusveld' is a new and sustainable urban residential area in The Hague. It will be a new nature-inclusive, energy-efficient, car-free neighbourhood that is created for plants, animals and people promoting healthy living (1). As of November 2020, The building of the neighbourhood with its unique houses and buildings is still in progress (1).

Currently, the area is an 'experimental area' for all kinds of sustainability initiatives that may be used for the realization of the neighbourhood, including self-sufficient 'tiny houses' and urban farmland (1,2). The ambition for Erasmusveld is to become a leading sustainable neighbourhood with a sustainable water system, the use of sustainable energy and a vegetable garden with high connectedness between citizens (4).

North Wirral Coastal Rangers and volunteers are working together to plant discarded Christmas trees to stabilise sand dunes between Leasowe Bay and the Gunsite area of the North Wirral Coastal Park. The Christmas trees help to catch and trap sand blowing in from the beach and in a few years will create artificial dune shapes, benefiting plants and animals. (Ref. 1)

In 2016 the Rangers and volunteers undertook a dune restoration project at the Gunsite. They advertised for the public to drop off their old Christmas trees at a collection point. The trees were then used to reinforce the dunes and trap sand. This was very successful and in 2017 they continued with the project, again with great success. In 2018 they ran a high profile social media campaign using Twitter and Facebook, asking for more Christmas Trees. This has generated a huge response and generated over 900 trees. It also prompted Radio Merseyside to interview Dave Stevenson, the Coastal Ranger, over the project and how it was helping to stabilize and re-establish the dunes (Ref 8).

Wirral Waters is the largest regeneration project in the UK. It will transform over 500 acres of the Birkenhead docklands into an internationally recognizable destination (where e.g. innovation and sustainability will thrive). (Ref. 1, 2). While the whole project will take up to 30 years to finish, the first phase has started in 2019 and building work has begun on three projects which will bring 1,000 homes and breathe new life into 500 acres of former dockland in the town. £220 million will be invested in the next three to four years alone in an effort to build high quality, high-density accommodation with lots of green space and employment opportunities close by (Ref 10,11).

Located in the south of the town, this garden is an ideal place for family walks. Very popular, it also responds to a scientific vocation for the conservation of plant species from the five continents. In the spring of 2013, the Jardin des Plantes was enriched by a honey garden with a pedagogical vocation, which houses plants whose juice is used by bees to produce honey. The City of Rouen undertook the renovation of historic greenhouses, work on which was completed in 2019. The objective is to enhance the treasures of this extraordinary greenery (Ref. 1). "The collections reach more than 6000 species and the garden contributes to the development of sciences, to the preparation of medical students and to the dissemination of species, thanks to the exchange of seeds" (Ref. 10).

It is a community garden initiated by the autonomous assembly of the Poblenou neighborhood. It has changed location a number of times, eventually occupying the empty lot of demolished buildings. Over time the garden has expanded, taking over an adjacent empty space, as well as other yards in the neighborhood. The garden is not maintained for strictly productivity purposes, especially because much of its soil has been contaminated by a soap factory. It is, rather, used as a space for social encounter and knowledge sharing on planting and working with the earth on a communitarian basis (Ref 1 and description provided by CEU). This NBS is also part of a wider movement, the 15M movement in Spain (Ref 1), which had influence on the creation of larger similar global economic 'occupy' movements (Ref 5). Video for the opening party of the 8th self-managed squatted garden in the Poblenou neighborhood, Barcelona from April 11, 2020 shows that the idea of the first garden has lead to the creation of at least 8 of these gardens in the city (Ref 6).

The Parc Agrari del Baix Llobregat is located in the floodplains of the delta and lower valley of the river Llobregat, in the Catalan county of Baix Llobregat, in a central position within the metropolitan area of Barcelona. The territory of the park (nearly 3500 hectares), includes a rich traditional agricultural activity and comprises fourteen municipalities totaling about 818,000 residents. It is protected by a specific planning instrument and managed by the Barcelona Provincial Council (Diputació de Barcelona) (Ref. 1 and 9). The park acts as a green lung for the metropolitan area of Barcelona and at the same time as a pantry for Mercabarna, the large wholesale market that provides food and drink to the inhabitants of Barcelona and surrounding towns, although there is also production that is exported (Ref. 10). The Agrarian Park is the only one in the world so close to a large city and it promotes specific programs to preserve the productive values of the agricultural space and promotes quality local products and local consumption. (Ref. 10)

The Senate of Hamburg commissioned IBA Hamburg GmbH with the development of the project which aims at realizing two new, family friendly residential districts in Neugraben-Fischbek, the Fischbecker Heidbrook and Fischbeker Reethen, which will offer 3000 residential units in total. (Reference 10) Out of the two districts, Fischbeker Reethen is planned to be the "Garden City of the 21st century", which is why this NBS case focuses on that project. The Fischbeker Reethen project pays attention to sustainability, having a blue-green infrastructure (large green surfaces, waterways and a lake that serves as a basis for the rainwater management of the area). A further aim of the project is to create a new district for the growing city, that with its good infrastructure, public transport connection and educational offers will help the integration of refugees into German society. (Reference 12) The construction of the buildings followed by the green and recreational elements is will start in the second half of 2020, and the handover is planned for 2022 the earliest. (Reference 7)

In 2014, local residents of the St. Pauli neighbourhood of Hamburg supported by architects decided to reshape the Hilldegarden bunker built during WW II. They managed to convince the owner of the bunker, who currently leases the rooms of the bunker to a nightclub, a music school, an instrument store and a photography studio, to re-create the bunker in a way that pays special attention to ecological and social aspects. (Reference 1-3). ”The new project would see the space continue its mixed-use atmosphere, but topped with a massive public rooftop garden with walking trails.” The 800 sqm garden will use sustainable techniques for its operation, including renewable energies and greywater collection for irrigation and will offer a public garden where residents can engage in urban food production. (Reference 2) In September 2020, the reconstruction of the bunker is still in its early phases. (Ref. 8)