78 Ewa Cisek
The concept of their selection must also be applied in the
future, which means that owners of ats cannot interfere
in the designed plant compositions, change them, or elim-
inate them. Thanks to this approach, ecosystems are sta-
ble, native, and remain in a constant balance. At the end
of this complex process, the functional and spatial sys-
tem of a building with a division into publicly available,
semi-private, and private spaces within the structure of
ats and created gardens is designed.
Similarly to the other Dutch implementations of the au-
thor of the project, apart from the oce space and apart-
ments, 30% of this layout are social ats with signicantly
reduced rents. This detail proves that pro-environmental
and social activities are combined, which brings satisfac-
tory results.
Façades, which are lled with trees and shrubs, are not
only cyclically recurring colour phenomena as an imita-
tion of the year-round vegetation cycle of plants. They
also form a design strategy to increase the share of the bio -
logically active tissue in the structure of the city. These
actions substantially improve the quality of urban air and
signicantly reduce the urban heat island eect. The trees
in the structure of towers produce an average of 41 tons
of oxygen per year, sucking carbon dioxide and capturing
ne particles of dust. They produce the amount of oxygen
equivalent to the one obtained from one hectare of forest.
The green tissue clearly cools the façade in summer and
provides full insolation in winter when plant branches
shed their leaves. Thanks to this solution, the costs con-
nected with air conditioning of buildings are reduced [21].
At the same time, the sun rays which lter through the
crowns of trees, give the eect of Nordic light in residen-
tial interiors – a phenomenon occurring on forest glades
surrounded by high trees or in Norwegian small churches
stavkirke. This quality of space was used for the rst time
in architecture by Norwegian architect Sverre Fehn when
designing Nordic Pavilion (Norwegian Nordens paviljong,
implementation in 1962) at Venice Biennale, where a key
role in the structure of the building was played by trees
– newly designed and those outside within the park [22].
This implementation from Belgium is an example of
con structing a stable ecosystem which consists of fauna
and ora species characteristic of a given location. The
building is a supporting structure for it, with a given form
which improves the plant exposure to sunlight and supplies
the plants with rainwater. This concept promotes the recon-
struction and protection of local wild ecosystems as a meth-
od of increasing the species biodiversity and eco-education.
Palazzo Verde is a vertically designed local ecosystem,
which is a kind of green acupuncture of Antwerp. Appear-
ing in the city, it plays the role of “vanguard” of changes
and sets a new direction by introducing native nature into
the structure of the built environment. This solution is an
alternative to the existing urban planning which isolates
natural systems and dehumanizes the human living envi-
ronment. The colours which nally the image of the build-
ing obtains, i.e. unique just like in nature, are cyclically
changed, which makes them harmoniously become a part
of a larger image of the organic city, and thus becoming its
unrepeatable and attractive showcase.
Hobokense Ecological Education Park
– an example of transforming urban brown fields
into a new urban ecosystem
Eco-friendly architecture which is integrated with Eco-
logical Education Parks constitutes another form of spatial
organization of housing architecture that is conducive to
climate neutrality in cities. These new urban ecosystems
form closed wild local ecosystems which are created on
the basis of the existing forest and park greenery centred
around watercourses and water reservoirs. They are char-
acterized by semi-natural vegetation, limited maintenance
treatments, emphasis on education, and the use of ecolog-
ical succession as the creator of the park or a part of it [1].
The environmental context seems to be crucial for orga-
nizing this type of eco-structures because development on
the basis of place is the basis of all actions. This long-term
approach supports such values as increasing biodiversity
and eco-education of inhabitants of the city. Its fundamen-
tal assumptions include friluftsliv (Norwegian) – the joy
of identication with wild nature, i.e. going out to nature,
which ensures necessary balance and empathy [22]. In
the urban context, this role is performed by new urban
ecosystems, i.e. Ecological Education Parks and related
functions such as housing, including houses for seniors
and educational – forest kindergartens and schools, ser-
vice – small gastronomy based on local products and com-
munity spaces.
The main purpose of designing these urban eco-struc-
tures is the reconstruction of local ecosystems, which leads
to an increase in biological diversity in a given area, mod-
elling of ecological succession processes, as well as the
mosaic character of plant communities. Jakubowski aptly
notes that adaptations of urban brownelds for ecologi-
cal education parks make it possible to create new mo-
dels of leisure and recreational parks, where wildness is
a form consciously protected or introduced [1, p. 2]. This
function results in another goal, which is eco-education.
Thanks to it, inhabitants acquire knowledge about natural
processes and cycles which take place in ecosystems and
integrate in connection with protective actions. The last
and most important purpose, which is closely related to
the previous ones, is the reduction of the heat island eect
in the city and the improvement of air quality.
Such activities are perfectly reected in the Hobokense
Ecological Education Park in Antwerp and two connected
housing complexes, i.e. Polderstadt and Groen Zuid (ar-
chitect Binst Architects, implementation in 2020). This
implementation is an example of restoring and recon-
struction of the local wild ecosystem in the former polder
of the Shelde River and its strict integration with housing
architecture. Numerous small water reservoirs, eco-edu-
cational thematic paths, wooden shelters – walls for ob-
serving water avifauna and bridges above the wetland
habitats were designed within the park (Figs. 3, 4). There
has also been a return to the idea of farm animals grazing
in cities, which helps protect meadow environments and
makes it possible to maintain biodiversity appropriate for
the early stages of succession and exposure of valuable
views. Quoting Jakubowski […] the presence of animals