Green densification model

An indoor vertical garden by a French botanist Patrick Blanc installed at the Headquarters office of the InternetSupport company in Bielefeld. The garden cleans the air and serves the aesthetic function of being an interior decoration (1).

Before the intervention, the dam was a derelict former industrial and recreational area. (Reference 6) It was transformed into a green recreational park of the southern part of Budapest. 40,000 square metres of grass was laid, 700 trees, 20,000 shrubs and 20,000 perennials were planted. (Reference 4) The park now is a home to a biodiverse population of wild birds. It is one of the few places of the city that have direct connection to the Danube, giving space for strolling, doing sport, playing and relaxing. In 2018, a large-scale development began next to the dam, with the aim of creating a new city center. This would make the park a place for leisure for much greater number of people, but may be detrimental to the ecosystem of the dam. (Reference 6)

The Bohnenback Park project was one of the first urban redevelopment measures in Bielefeld and was opened its gates for the public in May 2017. The park is the combination of blue and green areas in the Bethel district. It was created by exposing the Bohnenbach stream which previously had been piped and been flowing underground. The park consists of free, bright spaces and lawns with few individual groups of trees. Along the naturally meandering course of the brook, there is a long, north-south oriented promenade, which also forms the backbone of the park. It separates the neighbouring buildings from a parking lot while also connects the Bethel district to its surrounding areas via a green corridor favourable for recreation (1, 7).

This project was implemented on the rooftop of a ten-floor building with a floor space of 1.4 hectares, with the implementation of a green roof of 650m2. The motivation behind this was to study the thermodynamic impact of a green roof in hot Athens. Results concluded that the greenroof significantly affected the thermal performance of the building. Energy savings of 50% were observed for air conditioning on the floor directly below the installation. In addition to the energy-saving benefits, the study also found increased biodiversity in the area. A plethora of birds and beneficial insects were observed on the roof, ranging from robin redbreasts, yellowhammers, yellow tits, coal tits, and sparrows to kestrels hovering high above eyeing up the smaller birds. Other species such as honey bees, tiger swallowtail, monarch butterflies, dragonflies and ladybugs were also seen (Ref 1). The study suggested in improved micro-climate and biodiversity of the constitution square (Ref 1, 6, 7).

Opened in 2019, the René-Dumont Park which runs adjacent to a railway is "a centerpiece of the urban composition of the Nouveau Saint-Roch neighborhood" in Montpellier. (Ref. 1 and 2). This north/south 1.2-1.3 ha vegetation corridor represents a major of the city's urban renewal plan and "allows a great articulation among existing habitats, infrastructures and a contemporary neighborhood" (Ref. 2). The large area is considered to be exceptional for dense urban centres (Ref. 2). "The Nouveau Saint-Roch district is an example of a social, generational and functional diversity" (Ref. 2).

The current intervention involves restoration of Bohrova park in the city district of Petrzalka with the implementation of water conservation measures (9).

The planting of trees and shrubs in Dolnozemská Street is part of the Bratislava zelenaj project and Bratislava’s gradual implementation of NBS to mitigate the negative impacts of climate change on its inhabitants. (1, 3, 9)

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)