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The revitalisation of the park Gaštanica Koliba in Bratislava Nove Mesto is intended to stop the degradation of its ecosystem, preserving existing vegetation while improving the local climate and efficient use of rainwater. Over 100 trees were treated, including some of the local population of chestnut trees. A local seepage pit was installed to retain water both to the benefit of the local vegetation as well as to prevent erosion and landslides. The park has also been fitted with recreational facilities and is now illuminated to improve its accessibility for the local population. (7, 8, 9)

Metrodom Panorama is a private investment containing four 17-storey residential buildings. Following the model of Bosco Verticale of Milan, the facades of the buildings will be created as vertical forests. In the balconies of the buildings 3 to 6 meter high trees are planned to be planted. The construction was finished and the buildings were opened for residents in 2020. As the building is still very new, the green elements of the building are not fully grown in their size, but in 3-4 years the buildings of Metrodom Panorama will be covered with especially lush vegetation. (Reference 9)

The Green Kindergarten aims to build a pre-school educational establishment in responding to the city’s social, cultural and educational, and ecological needs. The building will include a vegetated roof, which will not only fulfil an aesthetic aspect, but also other important ecological and environmental features and functions related to the operation and maintenance of the building. (8, 12)

The 18 km long Rheindorfer stream flowing into the Rhine has faced increased urbanization, industrial activity and surface sealing over the last decades of the 20th century. As a result, numerous interventions were made to its original structure, such as the creation of a concrete bed for the stream and the straightening of the stream course. Meanwhile, an increasing amount of pressure was put on its water carrying capacity. In order to improve the flood retention capacity of the stream, the renaturalization project of the stream was executed in some parts of the water body. The project aims were 1) to restore the natural course of the stream and the state of the riverbeds, thus enhancing the stream's capacity to buffer floods, 2) restore the natural biodiversity of the floodplain and 3) to create a recreational area for locals (1,2).

This NBS involved the reconstruction of two of the total of four lakes/ponds at the Iron Fountain (Železná studnička) and was one of the project sites undertaken by the Bratislava Zelenaj project. (7, 8, 10) The location served as a recreational and relaxing spot for locals and tourists. To undertake the reconstruction, the two lakes/ponds no. 3 and no. 4 had to be discharged. Upon doing so many species of fish were found, including carp, caras, catfish, rabbitfish, toothpick, lure or amur, and also bivalve molluscs and troughs. Reconstruction of water reservoirs (ponds) no. 3 and no. 4 were implemented by the City of Bratislava within the framework of the project in cooperation with the Monumental Office of the Slovak Republic and the Municipal Forests company. (9, 11, 20)

The present intervention is about the rehabilitation of the freedom square (Námestie hraničiarov) (formerly Gottwald square) in the city district of Petržalka of the city of Bratislava (9, 11). The area of the intervention is about 1 ha. The pavement was replaced by grass areas, trees, and flower beds in the square’s alleys. A water capturing and irrigation system was also installed to ensure resilience to drought. The project was implemented by the city district of Petržalka, which is - with 100,000 inhabitants - one of the larger and most densely populated districts of Bratislava. (1)

The intervention was planned to revitalize and clean a derelict area close to the university hospital in Blato. Before the project was implemented, the area was an informal waste disposal site for the locals. The area was neglected for more than 30 years. Initially, Mayor Milan Bandić planned a large urban park with a thermal spa in the spot. The area was cleaned and some of the constructions had begun, but later it stopped due to some political hurdles (Ref 1, 2).
The first phase, cleaning the shrubs and waste from the area has been completed in 2015, but the use of the area has not been determined yet, therefore the project has not been completed (Ref 1).

Approximately one-fifth of the rain that falls in Malmö's urban area is led to Risebergabäcken, which makes it by far Malmö's largest watercourse. None of the other watercourses receives more than a very small part of the municipality's stormwater. The flow in Risebergabäcken is in many places it is narrow and deep, which means that the water rises quickly when there is a lot of rain (ref. 7). Large precipitation and asphalt industrial environment in Skogholm's meadows (Skogholms ängar) have long been a problem of overload in Risebergabäcken, but the ecological stormwater system delays and cleans the water, as well as preventing erosion and floods (ref. 1).

In 2013, architecture firm BIG's design was chosen for a proposed Museum of the Human Body in Montpellier (Ref. 1). The plan was "An ambitious scenographic project resulting from a simple and clear spatial design. The alliance of its architectural, environmental, and functional qualities". "The gentle slopes of its roofs transform into a landscape intertwining vegetable and mineral terraces that provide direct access to pedestrians on the urban sidewalk and the park" (Ref. 2). It would have involved a "park of eight hectares" (Ref. 12, page 4). The project has not yet become a reality (as of August 2, 2020).

The 53 square meters large green wall can be found in an office building in the center of Budapest. (Reference 9) It helps to balance the humidity indoors, cleans the air and provides a comfortable work environment. The project includes rainwater collection for the irrigation of the green wall. (Reference 6) The building itself was the first one in Central-Eastern Europe to gain the double environmental certification of BREEAM Very Good and LEED Gold. (Reference 9) The focus of the NBS are the indoor green walls, but the building itself also features vegetation on multiple terraces and sun collectors. (Reference 10)