With the growing population, high rates of migration together with de high demand for housing, densifying the existing built environment is inevitable. For this, countries are looking primarily to post-war neighborhoods because of their spatial layout and low density. However, the densification of these neighborhoods threatens the loss of potentially valued heritage and in addition, densification can diminish livability. Therefore, the purpose of this research is to answer the following question: How can a post-war neighborhood be densified while improving its livability and preserving its heritage values? As the case study of this thesis, the Louis Couperus neighborhood was chosen in the Western Garden Cities of Amsterdam New West.

On the basis of literature research and comparisons along with observations, different methods of densification are discussed and a framework has been established that can be used for measuring livability. In choosing the most appropriate method for densifying post-war neighborhoods, present heritage values are leading. These values may also play a part in improving the livability of neighborhoods. Based on these three interconnected topics, a design strategy is formulated in this thesis. This design strategy was subsequently applied to an open courtyard parcellation consisting of duplex typology dwellings within the chosen case study.

Densifying post-war neighborhoods contributes to the current housing crisis and reduces potential heritage demolition. Less demolition, in turn, contributes to a circular economy and deals with existing buildings in a sustainable and resourceful way. Improving the livability of neighborhoods ensures the long-term wellbeing of individuals and communities. This in turn leads to more attractive and suitable areas for communities to live in.

Adaptability, in contemporary architecture, is defined as the capacity of a building to effectively accommodate the evolving demands of its context, thus maximizing its value through life. On the other hand, there is the concept of cultural significance, which addresses the attributes and values of cultural heritage buildings and justifies their designated status.
The negative reputation and/or lack of recognition received by these typologies of housing have an impact on the protection of these buildings today. Although parts of the urban design of Amsterdam Nieuw-West have received recognition of significance, unfortunately, this is not the case for all the architecture of the buildings, of which many have been demolished or transformed without consideration of their potential cultural significance. Potential obsolescence, changed demographics, and rapidly growing demands for energy efficiency, as well as new living standards, all threaten these buildings with demolition or modification before their historic or artistic attributes can even be recognized. Many of the issues stated above continue to be common today, showing a lack of advancement towards adaptable post-war housing.
This research report tries to integrate research methods on attributes with research methods on adaptability. This kind of approach could diversify concepts and reveal complementary characteristics regarding the significance of post-war housing blocks by linking them to adaptability.
The framework used in this research is divided into two distinct parts. Firstly, the classification of building layers and elements; subsequent internal and external connections and attributes; and secondly, the interpretation of all the aforementioned in a dependency structure matrix, revealing relationships, areas of synergy, and associated attributes.
By fusing these different methods, an integrated approach was developed to study post-war housing blocks and reveal the connections between significance and adaptability. To find areas of synergy between these two domains in order to contribute to the development of architecture that genuinely uses change for greater significance.

Every building is designed differently, therefore there is no set way of how building transformations can be carried out. The current state must be figured out for each building, and therefore the exploration and design phase of transformation projects takes a long time. For this reason, buildings are often demolished rather than being transformed. However, many of these buildings are important because of the value of essential history, shared ideas, and the physical environment. In addition, many buildings are vacant while there is a shortage of space for housing. By accelerating the design process, more buildings can be transformed instead of demolished. This will ensure that more housing can be created through the sustainable method of transformation.
The purpose of this research is to establish design strategies that can entertain and accelerate the design process of building transformations. For this purpose, the following research question was formulated: What design strategies can be used during the design process to preserve a building when it is split into smaller segments, and to what extent do these design strategies help in designing a building to be transformed?
To answer the research question, three case studies of transformation projects were analyzed and a comparison method was conducted. From these comparisons, five design strategies were extracted that help in the design process of a building to be transformed. The five design strategies are: 1) The space plan of the building should be kept the same in the main design as much as possible. In addition, a distinctive part of the building should remain unchanged. 2) More services will need to be added with a change of function, here some of the general service areas should be kept. 3) The facade should be kept as much as possible and only subtractions in the roof should be made where people gather. 4) The structure should remain visible where it was already visible, and in doing so the structure should be kept where it is still adequate. 5) The site can be added, removed, or remain the same. This should consider the possibilities of the surroundings and the new function of the building.
The five design strategies were tested on an assessment building. It followed that each of the strategies can be applied to the building and it facilitates and accelerates the design process of the transformation. In addition, the design choices made by the strategies are well-supported. Thus, using the strategies will benefit the design process of transformation projects.

Urban vitality is a concept reflecting the synergistic interplay of complex conditions that create a city's liveliness and significantly influence its livability. Distributing central area density becomes important in cities like Amsterdam, which face challenges such as housing shortages and overtourism in central areas. Consequently, enhancing the livability of areas outside the city center is essential. Livability also contributes to conserving the historic urban landscape and affects the city's sustainability. This study focuses on urban vitality as a means to enhance livability.

The primary objective of this research is to identify the conditions that affect the urban vitality of a neighborhood center and explore how these conditions can be applied to redesign. The case study focuses on Plein ‘40-‘45, a historic square and neighborhood center located in Amsterdam Nieuw-West. Enhancing the urban vitality of this square is expected to improve this area's livability, alleviate Amsterdam’s urban problems, and positively impact the conservation of the historic urban landscape.

As a methodology for this research, a comparative case study was conducted to examine how to improve the use composition of this square. The comparative case is Spui, located in Amsterdam Centrum, a touristic place and already a lively square, where a comparison of the diversity and density of uses was made. In particular, the observation method was used to examine the relationship between uses and pedestrian activities. This method is particularly useful for identifying public life characteristics in a relatively small urban area like a square.

Meanwhile, the Amsterdam Nieuw-West, also known as the Western Garden Cities, has been recognized by The Cultural Heritage Agency of the Netherlands for its urban and green environment and structure as having historic significance. Therefore, a literature review was conducted to study how the square redesign should improve the green environment while respecting the urban and green structure.

The conclusion of this study shows that Plein ‘40-‘45 is primarily focused on residents in terms of use. For this square and neighborhood center to develop into an urban center, it needs to offer diverse and attractive uses for visitors and tourists. Additionally, improving the diversity and density of the green environment and providing green connections in the area are important from the perspectives of urban and green structures.

This master’s thesis was written as part of the graduation studio “Heritage & Architecture: Adapting 20th Century Heritage: Resourceful Housing” at Delft University of Technology. The cultural significance of buildings is increasingly recognized, with heritage structures offering glimpses into the past. Building preservation is evolving from simple protection to an integral part of sustainable urban growth, with adaptive reuse being a more effective approach.

In the Netherlands, schools are rapidly disappearing, primarily due to demolition driven by the new “Frisse Scholen” initiative by the RVO. Additionally, the declining number of students in both primary and secondary schools is causing further issues. According to Rijksoverheid (2023), merging two or more schools is a proposed solution to address the decrease in student numbers. This process leaves one or more school buildings vacant, presenting an opportunity for adaptive reuse projects.
Furthermore, the Netherlands is currently facing a housing shortage, with almost 400,000 dwellings needed. The current housing crisis demands more typologies and space for new homes. By combining the preservation of (post-war) school buildings with the need for housing, adaptive reuse strategies can transform heritage school buildings into residential spaces. Research on the intersection of these issues and the transformation of school buildings is still limited.

This thesis employs a mixed-method approach. A general comparative case study was conducted using the four approaches to building transformation by Hans Ibelings and Diederendirrix (2018). This framework was enhanced with a grid and spectrum system to classify and analyze the research cases. Further analysis utilized the "black/yellow/red" method to illustrate building adaptations. The value framework by Pereira Roders (2007) guided the identification of primary values. The research classified all cases as having either a repurpose or regenerate approach. Overviews of interventions were created, highlighting added and removed materials for one case.

Translating research into design, the Rendorpschool was studied to assess the impact on building fabric and environment of various typologies. Scenarios were evaluated based on three aspects: living quality, cultural value, and resourcefulness. The findings indicated that variants with better living quality had slightly less added volume, thus requiring fewer resources.

This thesis holds relevance for other designers. The school building intervention overviews provide a concise, visual summary of all interventions and can serve as a starting point for evaluating the comparative qualities of various interventions. It ensures that data for the three key features—interior building fabric, exterior building fabric, and function—is available. This research contributes not only to the societal impact of strategies to reuse vacant buildings but also offers professionals a tool for assessing interventions in school transformations into housing. The conclusions from the design phase can help apply results to other school transformations, understanding the impact of decisions on building volume and environmental impact, and aiding in the selection of appropriate typologies for their projects.

This report researches the adaptive reuse of Christian religious heritage to improve resident satisfaction in Amsterdam New West. As the adherents of Christian denominations are decreasing in Western nations, the contemporary use of Christian religious heritage is becoming one of the greatest challenges of sustainable development. The resident satisfaction is determined every two years in neighborhoods in Amsterdam and Amsterdam New West has annually the lowest resident satisfaction. This study employs a qualitative interview method, using the Ballarat Imagine method, where local residents are asked to envision their surroundings from a positive perspective. The participants' referenced attributes are classification in the qualitative Value Framework by Pereira Roders. The conducted interviews and analysis led to the following conclusion. When establishing a strategy for adaptive reuse of Christian religious heritage in Geuzenveld-Slotermeer and Osdorp, the following attributes should be retained and enhanced: the greenery, the multiculturality, the peace, the interaction with others. In the same strategy attention should be given to the attributes that residents need, such as safety, generational harmony and diversity in shops and facilities.

Hoptille in the South-East of Amsterdam was created to foster a sense of human-scale architecture amongst the high-rise manifestation that was the Bijlmermeer project. Fourty years later this neighborhood still exists as a modest yet dense neighborhood flanked by an increasingly densifying Amsterdam.
This neighborhood is one of the more fragile areas of the city socially and economically. With new housing planned all around the region will there still be a place for everyone in the city?
To effect change the point of attention is the area where systems meet. An intermediate space between the individual and the industry or larger urban network. This project explores how cohousing can benefit Hoptille, socially, economically, and ecologically. And proposes a strategy to do this.

In recent years, shopping malls are facing an increasing amount of vacancy problems, due to the rise in online shopping. The research within this project looked into the visitors’ perspective concerning the functional, architectural, identifiable and social values of three shopping malls in the Netherlands. The outcome of the research shows that the visitors value the functional aspects of the mall most often, with everyday values such as ‘the grocery stores’, ‘the fact that the mall is nearby’ or that there are ‘a lot of shops’. From the outcome of the research, it could be concluded that the emphasis at the mall is on the necessary activities.

To create a place where a broader spectrum of activities will take place, the re-design of the Mall of Schalkwijk (Haarlem) focuses on a mix of functions with the addition of different dwelling types, offices, shops and green spaces. The connecting element in the project is the passage, which is repurposed from a closed traffic space to an open place to stay. The passage connects the shops and restaurants with a new square at the location of the old expedition space of the shops. An important factor in the design is the implementation of green to reduce the UHI effect and to increase human comfort at the site. Important interventions in the re-design are a boulevard with a green colonnade, façade gardens, green roofs and the quadrupling of the amount of trees on the site. To conclude, this re-design is an attempt to value what is already there and improve, making it ready for the future.

Without realising it, a building can have a lot of impact on user health. Using literature studies and interviews in two case studies, we looked at how physical elements in a building affect the user's experience. These physical elements are nature, material, air, light, dimensions, smell, sound and temperature. These interviews took place in shopping malls. As it happens, more and more shopping malls are becoming vacant. The design case for this project, the Oranjerie, also experienced this. Located in the city centre of Apeldoorn, this shopping mall has been battling this vacancy for ages. In this design, I propose adding more nature, applying healthy (bio-based) materials where necessary, reusing or recycling materials, connecting indoors with outdoors more, creating multiple meeting places and mixing different functions. By opening up the traffic area, but still keeping the roof, an adaptable space is created with a climate that changes throughout the seasons. Through these interventions, I hope to create a healthy environment where people feel comfortable and can meet. By creating multiple types of spaces, it creates a lively area where people can shop, live, eat or just unwind.

This paper explores the balance between heritage values and new identities in the redesign of 20th-century Dutch shopping mall skins. The skin of a building plays a crucial role in its external identity and communicates its history, style, and cultural context. Shopping malls, in particular, require constant redesign to keep up with changing trends and provide a fresh stimulus to consumers. However, there is a lack of strategies for balancing necessary updates while preserving heritage values. Using the case study of Hoog Catharijne shopping mall in Utrecht, the research highlights the transformation of various tangible attributes of the HC skin, such as materials, patterns, signage, and elements, as well as intangible aspects like context relation, exterior and interior character, and perception. The results indicate that the redesign significantly transformed the mall’s appearance, leading to increased footfall and commercial success. However, there are mixed opinions about the new design, with concerns about sustainability and the loss of historical and cultural values. This research contributes to the field of heritage architecture by providing a framework and guiding principles for achieving a balanced and effective skin redesign in non-listed heritage buildings. By encouraging designers to explore the cultural and historical values embedded in building skins, the study aims to reduce casual demolition and promote sustainable and circular design practices.

Post-war shopping malls in the Netherlands are becoming increasingly vacant, which is reflected in the level of activity of the public spaces. These retail-oriented places are becoming less visited as the main reason to come here disappears. This presents a challenge in a compact and densely populated country with a high space demand. With the twelve urban quality criteria of Jan Gehl, a user-based design strategy for Winkelcentrum Leyweg in The Hague Southwest has been developed. The use of spaces determines the level of activity, as the people bring life to these areas. Therefore, this design focuses mainly on the people by introducing elements that make their daily lives more comfortable and enjoyable. A simple bench with trees functioning as canopies can already do the trick. In a building, it is about giving people the freedom to use the spaces they want; places to work, drink a coffee, have a workshop, study, or have the freedom to do what they want. When these buildings are occupied in various ways during the day, more people will be connected to the building, and even a small community can exist here. The increased activity in and around the building will contribute to the overall sense of security. By the use of the building, people will start to care for it and eventually maintain it, providing a more sustainable future. The architect's role is to shape the spaces by introducing qualities that enhance comfort and enjoyment. This can be the increase of daylight, a comfortable climate, moveable furniture, relation between inside and out, good acoustic levels and the opportunities to open or close spaces. Instead of shopping malls being intended for retail alone, these places can be a part of the city. This strategy can be applied to other vacant malls in the Netherlands, reactivating them and providing a more promising and sustainable future.

This thesis studies the Modern Malls in the Netherlands that were formed in the 1960s. The problem with these malls is that they have changed through time to keep up with the changing demands of the users, a development that has changed the once open ex¬troverted malls into introverted closed struc-tures. The closed structure of these malls, combined with rising vacancy and the ever-changing behaviour of the mall users, results that the malls in the Nether¬lands are struggling to survive. By analysing the open forms introduced by Sennett, the aim is to develop an intervention method to open op the modern mall. The interventions show that the open forms relate to different sca¬le levels depending on the intervention. The materialisation and architectural elements play an important role in the effectiveness of using open forms as intervention methods in Modern malls in the Netherlands.

The easily accessible location, the comfort of various facilities, the architectural quality and the space for meeting, all this created a new typology that could not be thought out of everyday life anymore. The mall gave a glimpse of a modern future, where the mall functioned as merely a place to shop; it functioned as a center for cultural enrichment, education and relaxation. However, it turned out that many
of these malls soon developed into commercial paradises. There was little room for social functions and meeting space, the only thing to do was shopping. An important reason for the failure of this typology may therefore be that shopping malls were never implemented as they were intended: as social beacons within the community. Use changed over the years, leading to many vacancies and a growing sense of social unsafety.

To preserve the existing typology of the mall, it seems important to strengthen its local relevance. Initially, the mall was designed as a social space, a place for cultural enrichment, education and relaxation. Somewhere along the way, this social value gradually disappeared; the mall is now mainly focused on shops. This research
tries to find which architectural elements can support the local relevance of the mall. It analyses the social value of the mall by the presence of place attachment. The level of place attachment is researched by different functional and emotional architectural attributes. Showing that the combination of diversity in public space, program, activity and people and more social safety will lead to a higher level of place attachment and therefore lead to more social value within an area.

By approaching the research from an user's perspective, De Bogaard in Rijswijk has been redesigned in order to attract pioneers that will aid in reigniting the attraction of the shopping mall. It has been partly refunctioned, in order to blow life into the area and stimulate the community. The new design focuses on the first phase of the redesign of De Bogaard and has 'community based design' as a base. It aims to attract artists and crafstmen, that are often pioneers in bringing areas back to life, e.g. M4H and Amsterdam Noord.

Suitable housing and its availability: it seems to be a problem within almost every phase of the housing career in the Netherlands, as the housing market is stagnating. Our older generation is held responsible for this national problem, but why? Deliberate occupation of the ‘oversized’ family home would be the easiest conclusion, but puts a heavy weight on this part of society. If these empty-nesters are not relocating, as is apparently expected of them for having an abundance of living space, what does this say about their preferences of the living environment? Listening to this generation for the sake of letting this operation of flow in the housing market succeed, is of utmost importance and priority. Instead of creating living environments focused on one generation or target group, the task within this research is to find a way to design inclusive and accessible living environments. Thereby, stagnation could be avoided in the future by this particular cause. After all, a mixture of different generations in the living environment is preferred both by older residents as by the general population. Within this task for diversification of the living environment for the sake of inclusivity, lies a hidden gem: a catalyst for the renovation task. By 2030, insulation of existing dwellings becomes mandatory in Europe for the sake of a climate-neutral society by 2050. When revitalizing existing living environments by means of inclusivity and quality, the climate task could fit perfectly within this picture. Especially these existing living environments are a very important subject, as with this renovation task the Dutch built environment could and probably will visually change tremendously in the upcoming decades. Therefore, the valuation by stakeholders of the current appearance and functioning of living environments up for renovation, are important in the face of physical and emotional heritage. As a large percentage of the Dutch housing stock will be insulated in the upcoming 30 years, these values are of great importance to prevent any loss of potential heritage. Enlarging the lifespan of these living environments by diversification, inclusivity and a high quality of living can therefore be achieved, as is the case for the renovation design of Bijlmerplein, an urban, residential center in Amsterdam. It turns out that it does pay off to take into account stakeholder valuations instead of wrapping the building in a blanket, because renovation can be revitalization rather than insulation.

HOPTILLE 2.0, a project aiming to improve the liveability of the neighbourhood Hoptille in Amsterdam. The research is based on literature study of Jane Jacobs and Jan Gehl, as well as, interviews with the residents of the neighbourhood. The main outcomes of the research that were used for the design, focused on the keyword list of Jan Gehl and the three interventions of Jane Jacobs, like ‘eyes on the street’, ‘clear boundaries between public and private land’ and ‘frequently used’. A large number of the buildings Amsterdam south-east are from the 70s/80s/90s and many of these have elements of Postmodernist Architecture. My methodology demonstrates that, however old the building is, it is by no means always necessary to demolish it. As an architect, one can respect the heritage values by maintaining a number of characteristic elements. Despite the problems in Hoptille and the many challenges in terms of living comfort, technical comfort and urban planning issues, it has many architectural qualities that must be seen as New Heritage. The ambition of my project is to value and maintain Hoptille’s architectural qualities. And with that treat the building with respect, treat the residents with respect, treat the neighbourhood with respect, treat the city of Amsterdam with respect and the planet with respect. I believe that value begins with liveability. Once we address this, everything can be built on it. That is why I have started the design based on a theoretical framework on liveability.

This project explores a value based approach to dealing with supposed New Heritage. The value analysis serves a the basis for a redesign strategy in Heesterveld.

The city block of Bijlmerplein is a significant example of created identity through different notions. In the context 70s and 80s heritage, Bijlmerplein demonstrates ideological interplay between different ideas and ways of design of built environment in the one neighborhood. It was designed as a remediation and a response to failed modernist utopia - “City of the future” of Bijlmer together with other residential blocks such as Heesterveld, Hoptille and Haardstee. The final goal intended to create new identity for an area which would be relevant to Amsterdam city and could give sense of belonging to society in contrast of alienated and futuristic Bijlmer urban setting. Bijlmerplein boundaries had been shaped by the infrastructure (elevated streets, parking lots and separated traffic) which was the consequence of CIAM ideas. The area has also an anthroposophical concept which are embedded into NMB head office in by Alberts & Van Huut. Cluster 2, designed by Atelier Pro architects had nature inclusive notion. Cluster 4 was designed by BroekBakema architects who were searching for national Dutch identity in the architecture and developed the “total” space concept inspired by ideas of neo-plasticism The design by research the focus was given for cluster 4 within the Bijlmerplein, because of its complex spatial composition, relation with public squares, accentuated front façade, architectural language, and the postmodern archetypes. The main idea of the design was to open the cluster by introducing the “green alley” feature and by densifying the block by careful extensions. The green alley becomes the key element for circulation and the center of the new residential spaces. It helps to reactivate the plinth and introduce urban greenery. At the same time, the research explored different ways of purifying and revitalizing postmodern archetypes such as: “gate”, “bridge”, “tower”, “street”, “courtyard” and “colonnade”. These features were seen as an attribute regarding historical value of the block. Cluster 4 is primary a social housing residential block, which also causes many social issues such as: lack of ownership, segregation, poverty, exclusiveness, drug dealing, homelessness. These issues were tackled by introducing different types of housing which intend to attract people from different social layers and diversify the block. This was done by introducing penthouses for young families, lofty studios for young professionals and three residential blocks for residents with medium income.

The Loss of biodiversity has become a global challenge in recent years, the number and species of bees which are one of the most effective indicators for the bioenvironmental state of an ecosystem have declined in the Netherlands in the past few decades.

As for the case of southeast Amsterdam, bees can only be found in big parks which are planned for regional use, there is a loss of smaller scaled good quality green spaces to make the whole ecosystem more complete.

Bijlmerplein is a well-known shopping district in southeast Amsterdam, Amsterdamse Poort is a landmark of this district. In terms of this social value, Amsterdamse Poort can take the leading role which serves as a ‘stepping stone’ (neighbourhood scale garden) and one important part of the ecosystem framework in Amsterdam Southeast. Meanwhile,it is a testing field for biophilic architecture renovation approaches in urban contexts. The project strengthens the symbiotic relationships between the hub and its environment. For example, the facade buffer zone offers urban habitats for pollinators such as bees and butterflies. The circular ‘green route’ along the facade also provides recreational experience for local residents and other users.

This community garden will also become the green education activator for promoting eco-friendly awareness of the public, disseminating the importance of pollinators to the ecosystem and popularizing a pollinator-friendly agricultural approach which is beneficial to biodiversity. Visitors are encouraged to take the seeds/ seedlings and learnt knowledge from the hub to their clusters and houses, which help to create bio-gardens and pollinator’s habitat in the next level (cluster scales and building scales). Edible plants can be planted in these gardens, then those turn to urban farms which are under the support of the biophilic community hub, and their products can be sold in the hub afterwards. These urban farms also help residents to have economic profits and cultivate community connections, which is a community-reinvigorated proposal taking biodiversity concerns as the pointcut...