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Vertical Garden is a 110 m2 garden installed in 2015 by Singular Green in front of the Hotel HM Tropical, as an outdoor project. (Ref 1) In October 2016, there was another 100m2 of garden installed. In 2020, there are also other companies that are trying to install vertical gardens on the island (Ref 4). There are special plants that were chosen due to its adaptive characteristics, as well as a special arrangement of the plants for aesthetics (Ref 1).

Milton Common is the second stage of the multi-million-pound Flooding and Coastal Erosion Risk Management scheme being developed across the north of Portsea Island, from Mountbatten Centre round to Milton Common. The overall project will reduce the risk of coastal flooding and erosion and provide the critical infrastructure the city will need over the next 100 years (6).
As the second phase, Milton Common included the instalment of a new rock revetment as a plans defence, the creation of a coastal path and three new earth bunds with new footpaths (6). The work has also included the demolition of Great Salterns Quay and restoration of the natural mudflat habitat (2,4).
The fully completed scheme will significantly reduce the risk of coastal flooding to Milton Common and the local area over the next 100 years; it will offer protection against a 1 in 500-year flood event providing one of the highest standards of flood protection in the UK outside of London (6).

The revitalization of two parks in Bydgoszcz - on 'Dabrowski’ and 'Liberty’ hills was planned in 2016 and successfully implemented in 2019. The project involved greenery planting, building health paths and outlook points, as well as new benches and a playground. It improved the aesthetic qualities of the parks, supported the effective management of rainwater and reduced noise from the surrounding areas [1].

The drought-tolerant garden was established by Portsmouth Water at its Head Office entrance in 2007. The plants in the garden, all of which require little or no watering, were chosen to be visually stimulating whilst contributing colour, scent and variation in leaf texture and shape (1). This garden has been designed to be drought-tolerant, easily maintained and can take some wear and tear. The planting reflects the changing seasons with something of interest all year. None of the plants is difficult to grow and is easily obtainable (2).

The Salitre Garden was a public park inaugurated in 1994 and built around the area of the former gunpowder factory. For this reason, it is also known as the Garden of Gunpowder (Ref 2). It is a green space planned in the urban centre, that has gone through different rehabilitation and remodelling stages. The first one was in 1987 when the land was bought by the municipality and made into the park (Ref 2 and 3). The second one was in 2012 by covering a green space around the powder factory (Ref 5). Another one was the inclusion of a new green labyrinth was installed in 2017 (Ref 4). The last one was in 2020 when a new botanical garden will be created on the island, with an open-air gym and a children's area (Ref 8).

Forest of Bere has been identified as one of the key project areas of the Partnership for Urban South Hampshire (PUSH) Green Infrastructure Strategy. The goal is to allow urban populations of south Hampshire to have better access to quality green space. (1) Part of the forest, called Portsdown Hill, is a Site of Special Scientific Interest (SSSI) is on the boundary of urban Portsmouth and supports extensive areas of calcareous grassland where a wide diversity of typical chalk grassland plants and insects can be found. The last twenty years have seen extensive areas of scrub being removed and restored to open grassland. The project aims to restore the once flourishing natural habitat of the forest while providing more recreational opportunities to the growing number of residents in the surrounding areas, was well as improving the ecological connectivity of separate woodlands (1,2,4,5).

Wetlands provide a varying degree of treatment of discharged water and are ideally suited for the containment and treatment of polluted water runoff, being a holistic example of Sustainable Drainage Systems (SuDS). The Dublin Local Authority installed an Integrated Constructed Wetland to treat polluted water discharged from the urban area, with the aim of cleaning urban runoff and drainage water. It was meant to purify water that discharges into a pond, and later on into the Tolka river. The project has been very successful in treating polluted water effectively, according to studies. (Ref. 1; Ref. 3)

The city of Bydgoszcz modernizes the rain drainage system with the support of EU funds. The current badly functioning rain drainage system (with sanded and littered canals) prevents from unobstructed rainwater flow to the Brda and Vistula Rivers or the Bydgoszcz Canal. This in turn leads to frequent floods in the city. The project is planned for the period between 2017 and 2021 and involves water purification and management of rainwater in the grey and green urban areas as well as reuse of the collected water for watering urban greenery [1,2].

On the territory of the former train station Vohwinkel (including the train tracks) a brownfield site of 15 ha was turned into a commercial urban area which was created as an economic driver for Wuppertal. However, the site was inhabited by the highly endangered sand lizard, which is why a species conservation island was created as the commercial park was being built. As a habitat of the endangered sand lizard species, the conservation area in the South-West of the commercial park remained free from construction development, and an adequate conservation concept was elaborated and implemented. The nature conservation area is maintained by the environmental protection department of the city. (Ref. 1 and 6). The project succeeded in its goal of creating a commercial area on the former Vohwinkel marshalling yard while simultaneously paying attention to the protection of the endangered sand lizard. (Ref. 2) Additionally to the conservation area within and around the commercial zone, lizards have also been relocated beyond the city limits as a biodiversity offsetting measure. (Ref. 8) Furthermore, the dried out Krutscheider stream, forming part of an important biotope system with its gravel surfaces, was dug out again to serve as a green corridor for compensation against the habitat loss. (Ref. 1, 4 and 6)

Pegnitztal West is a new corridor and recreation zone along a section of the Pegnitz river in Nurnberg suitable for all kinds of social groups and intended for recreational activities (1). The project instrumentalizes green and blue infrastructure for creating conditions for sport, leisure, and recreation, as well as serving a transitional function for the dwellers of the neighboring Gostenhof and St. Johannis districts (1). The green corridor also provides a protected urban habitat for various species, including more than 8 different tree species, water bats, green woodpeckers and swamp warblers. The project also stabilized the water level of the river and helps flood protection efforts. (2, 7)