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J.B. Klappe

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Regenerative design principles for post-war building renovation

This research focuses on the renovation and densification of post-war neighborhoods, often characterized by a monoculture in both housing and green spaces. These areas lack variation and connectivity, which not only limits biodiversity but also reduces the quality of life for residents. The main research question is: Which regenerative design principles for the renovation and densification of a post-war
building contribute to the densification of biodiversity within the ecologies of the urban fabric? he aim is to demonstrate that urban densification does not have to come at the expense of biodiversity but instead offers opportunities for synergy. To answer this question, methods such as literature review, case studies, and ecological analyses were employed. By studying urban biotopes and the dynamics between humans and nature, design principles were developed to integrate biodiversity into existing urban structures. Key guidelines include location-specific design, introducing more variation and strengthening connections, or disconnections. The research shows that cities are not inherently detrimental to biodiversity but possess their own ecology where flora and fauna adapt. By applying regenerative principles, cities can be transformed into living environments that support both human well-being and biodiversity. A focus on natural habitats, such as nesting opportunities for birds and bats, makes buildings an integral part of the ecosystem. The conclusion is that urban densification offers an opportunity to combine biodiversity with human needs, provided that flora and fauna are included as key actors from the start of the design process. This research highlights the importance of regenerative designs that redefine cities as dynamic ecosystems. Recommendations include developing methods to measure biodiversity in urban projects and involving ecologists and residents in the design process. This research provides valuable insights for architects, urban planners, and policymakers striving for sustainable and biodiverse urban development. ...

The redevelopment of a fortified city

Student report (2022) - J.B. Klappe, M.M. Teunissen
Demolition or renovation has always been a matter of debate in the built environment, especially in densely populated cities with little room for new construction. In the past, people often opted for the former, demolition, but today people are increasingly realizing what has already been lost over the years. Many old fortified cities have also been wrestling with this dilemma for years; to what extent and in what way can we translate our history as a fortified town into the new built environment?

By means of aesthetic images and illustrations, supported by textual explanations, an analysis was made of how the old fortress city of Zwolle dealt with this issue. Zwolle proves to be one of the cities that in recent decades has very consciously dealt with its history as a fortified city; the city canal, part of the fortress and even the city gate have all been preserved and well maintained. Also, several aspects that have been lost over the years have been brought back. The municipality of Zwolle has deliberately chosen this path and also has no intention of deviating from it in the coming years, as is evident from the new regional plan. In this plan, the municipality of Zwolle clearly states its position on the preservation and conservation of these iconic structures. ...