€500,000 - €2,000,000

In response to floods that had been afflicting the Rhiwbina area of Cardiff, a capital scheme was promoted in order to develop an integrated Rhiwbina Flood Defence Scheme. First, a pond was built in the Caedlyn Park to capture peak flows during extreme rainfall (ref 2; ref 8). The City of Cardiff also built low walls alongside the brook that flows through the neighbourhood to better channel water while also removing debris and reinstating the banks that had eroded over time (ref 1; ref 2). Additionally, by realigning and widening the watercourse, establishing earth bunds and creating a large attenuation pond downstream that aligns with the drainage system (ref 7). Taken together, flood risk decreased for the area overall, assisting local residents.

The renaturalization of streams is a common strategy for improving the ecological quality of water bodies as mandated by the European Water Directive. For that reason, parts of the Aa stream in Münster upstream until its flow into the Aa lake covering 2.6 km were renaturalized from 2012 to 2013. Renaturalization is a means to restore the natural river banks, local ecosystems of the Aa rive and improve the water quality of the Aa lake (Ref. 1 and 3).

Monglong Park was rehabilitated in 2012 with the explicit aim of strengthening social ties. The site is a wooded area of 4 hectares to the south of the Bellefontaine district. Unknown until its redevelopment, it constitutes a true ecological niche for the city and has great biological richness and landscape. The associations of gardeners and the gardeners of the Bellefontaine neighborhood, including the Maghreb and Mong communities, were involved throughout the construction of the park (Ref. 2).

The South Saint-Jacques district is a residential area. A public housing project in the district incorporates careful landscape planning to promote social interaction, increase biodiversity, and better manage rainwater. It includes green spaces, collective area for free initiative from the community, swales and planted basins for rainwater drainage (Ref. 1).

The project tackles the habitat fragility of the Ligurian wetlands and the impact of a turtle species called Emys orbicularis in the Centa Piana river, the Vara and Magra rivers areas. The project focused on the restoration of the natural habitat, the eradication of invasive American species threatening the European turtle species and the assistance of local turtles reproduction and re-introduction in the wild. A large part of the project was conducted thanks to the participation of volunteers and large emphasis was given to education about environmental habitats protection. (1)

Park Lužánky underwent extensive reconstruction between 1991-2012 through five phases (Ref 2) to restore a recreational hub of the city's largest park through ecologically sound design (Ref. 1; Ref. 2). Each phase worked restored different sections of the park. This included modification of green areas, landscaping (treatment of trees, planting new trees and perennial plants, restoration of grasslands), building a children's playground, a fitness park, and an artificial water element that imitates the former stream of the river Ponávka. (Ref. 1).

The project involved the revitalization of the area in Cacovická island in order to create conditions for year-round recreation and relaxation in the natural environment and to restore the ecosystem in the floodplain of the river Svitavy (Ref. 3). The project also restored the cultural heritage of the area by integrating elements of Celtic heritage within the design, as well as environmental education (Ref. 4).

In an effort to improve the Holásecká lakes for both recreation and local natural conditions, the revitalization project has modified areas on the shores of the Holásecké lakes reconstructed culverts between the lakes, and removed the panel which fortified the Opleta and Lávka lakes (Ref. 4). The largest restoration activity includes removal of mud from the lakes (which can be repurposed due to low contamination) for the sake of ecologically restoring the area (Ref. 4). Plans also include improving recreation by installing wooden piers and developing a paved footpath with benches (Ref. 1). The ecological restoration will be important for wildlife, especially birds and amphibians (Ref. 8).

In 2016 the Municipality of Lisbon started the renovation of the Botanical Garden of Lisbon, declared in 2010 as a national heritage monument. The botanical garden is both a vital urban open space and a significant cultural landscape of the city. This Botanical Garden is home to an important collection of plants with economic value, reflecting the strong links to the Portuguese expansion and the routes of the navigators that spread them across the various continents. The intervention is expected to provide improvements in the irrigation and water circulation systems, in the rainwater harvesting system, in the reorganization and improvement of garden green spaces, and in the restoration of paths. With the objective of requalifying the space, bringing significant improvements in terms of sustainability of resources, visitors safety, new cultural and recreational opportunity spaces (Ref. 3, 4, 8).

With an area of ​1.7 hectares, "Jardim da Cerca da Graça" (Graça garden) is the largest public green area in the historical area (Ref. 4). It's a green space located inside the fence (cerca) of the old convent of Graça, building previously occupied by the Republican National Guard. The garden was created from the requalification of part of the fence and its opening to the public, also has a function of passage, with new green spaces: a central lawn, a picnic area and an orchard. There is also a kiosk with a terrace and a children's playground (Ref. 2).