The discussion and results will be presented in accordance with the knowledge gained in different research phases: (a) the developed conceptual models, (b) multiscale and value-based heritage programming perspectives and (c) clustering the conceptual models concerning the architectural program types. The first part will be discussed by presenting 12 conceptual models explaining identified perspectives in line with programming values and relevant spatial levels (scales) and by identifying targeted social dimensions of well-being and the specificity of applied architectural program characteristics. The second part of the discussion has a systematizing and synthesizing character, and it is multi-comparative in nature in order to propose a universal agenda for heritage reprogramming. The third part of the discussion focuses on the clustering of conceptual models concerning the determinants of the architectural program and their applicability on different spatial levels.
4.1. Reprogramming Modernist Heritage in Line with Social Wellbeing
A discussion of the developed conceptual models for reprogramming modernist architecture heritage will be built concerning the five central elements of the programming information matrix. Previous research indicates that defining the architectural program is achieved exclusively by considering all the elements of the information matrix. In this regard, the explication of each of the 12 conceptual models (see
Figure 2 and
Table 3) will include the consideration of the following elements [
43]: (a) concept (values particular emphasis, general idea), (b) need (motivation for conceptual model generation), (c) problems (gaps in a contemporary moment), (d) facts (contextual features) and (e) goals (in line with the social dimension of heritage).
4.1.1. Conceptual Model 1: Reprogramming Urban Practices of Everyday Life—Enhancing Access to Education
Conceptual model 1 focuses on reprogramming the urban practices of everyday life, describing the tactics available to the common man for reclaiming his autonomy from the all-pervasive forces of commerce, politics and culture [
70]. It develops the concept of an urban laboratory with a particular emphasis on the research and implementation of social (cultural and common), systemic (technologies and processes) and temporal (change) programming values and indicators. Based on a comparative analysis of original drawings and plans dating from the 1950s and the contemporary concept of public spaces, it develops the system of spaces programmatically connected with various urban practices in the context of New Belgrade, especially from the aspect of their presentation and the possibility of active social engagement. This design strategy has a capacity to develop different educational mediums and encourage not only learning about modernist heritage and its transformation processes but also active participation in these processes. Transformable structures and technologies are distinguishing factors of the physical feature that enables constant change and adoption of the program in line with different urban practices of everyday life and different intentions and needs of laboratory users. In this way, public space in the city becomes a place of education and action regarding understanding and preserving the heritage.
The nature of this architectural program, which aims to enhance access to education, is primarily characterized by the dependence between singular parts (modular units) through their interaction based on the singleness of function between the various assembled elements. Accordingly, each spatial unit has specific educational content related to the inherited space—active education/learning and the heritage representation/exhibition spaces. The spatial concept results in a fragmented form added as an exoskeleton to the existing spatial framework. At the same time, the program is thematic according to the hybrid relations of program elements. Considering the types of architectural programs from the aspect of the program–form relationship, Conceptual Model 1 is characterized by indifference. The existing spatial framework of the Genex tower acquires a completely new educational content while retaining a deterministic form. Added fragmented units have the role of enhancing access to education. Concerning the broader context of the territory of New Belgrade within which the case study is located, and which is characterized by dominant residence function, the design strategy of this Conceptual Model is aimed at creating a spontaneous program in accordance with functional performance relations, which implies physically porous spaces with variable educational activities directed towards reprogramming urban practices of everyday life.
4.1.2. Conceptual Model 2: Reprogramming Urban Commons—Enhancing Participation in Political Life
This conceptual model questions the survival of formal political institutions and their impact on people’s lives. New Belgrade was developed under socialist ideology and strong political institutions with specific spatial and organizational logic [
71]. However, today, there is an evident problem regarding the ownership, maintenance and protection of this heritage. The design research is emphasized on the public space within the urban block as a public commons of particular importance for the overall welfare and wellbeing of the community, especially having in mind the inadequate and irregular urban practices in these areas today. Through the reprogramming of the urban commons, the Genex Tower was reprogrammed into an institution becoming a “stage” that offers back the public right to engage around issues of their environment, calls for debates, conflicts and the promotion of values. It creates multiple options which enable the interaction between people and space. In this way, as a place of cultural significance, the Genex Tower receives the capacity to become a place of cultural expression. The conceptual model is based on a range of programming values relevant for this subject, with emphasis on environmental (regional context), human (psychological), social (legal and common) and temporal (change) programming values and indicators. The result is an architectural program that enables citizens to be engaged in political life by creating a new culture in the broadest possible sense.
The nature of the architectural program focused on enhancing the participation in political life is based primarily on thematic hybridity, characterized by the dependence between interior and exterior parts of the building and encouraging the interaction in-between public space and Genex Tower. Conceptual Model 2 engages a design strategy of the fragmentation of a form, i.e., the decomposition of its segments, in order to achieve a high degree of interactivity between public space as a place of cultural expression and the Genex Tower building as a place of cultural production. In this sense, program and form are reciprocal—form is shaped to reciprocate the configuration assigned to the program, which is directed towards the wider community. According to functional performance, the architectural program is spontaneous (soft), described as physically porous spaces involving variable activities for citizens’ political engagement, which is a consequence of the decomposition of certain parts of the inherited space. It is essential to point out that such a program strategy does not disrupt the silhouette and architectonics of the building.
4.1.3. Conceptual Model 3: Reprogramming Modernist Housing—Enhancing Living Standards
Conceptual model 3 starts from housing culture as one of the most recognized values of the modernist heritage of New Belgrade. The period of intensive housing construction of New Belgrade within the socialist self-management system is primarily related to the achieved housing quality in terms of environmental humanization and functional organization of housing units [
69,
71]. Regardless of the recognized qualities and characteristics of the Belgrade school of housing, traditionally designed housing patterns, contents and structures cannot meet many of the current needs of life and leisure culture. The conceptual model goal is to reconsider new ways of living and leisure adapted to contemporary man and reconsider the position of work and education in contemporary urban housing, especially considering continuous change and unexpected circumstances such as the pandemic. Accordingly, the focus is on human (psychological and functional), social (cultural and common) and aesthetic (change) programming values and indicators, and many other values considering the complexity of the housing issue. In terms of the physical framework of the model, reprogrammed housing units are designed as flexible with different common spaces within the common area of the building that can support a wide range of dwelling and leisure activities. The concept is based on the good modernist tradition but interpreted in a contemporary manner as a juxtaposition between residency, work, education and recreation. The main aim is to understand whether and how to preserve the sustainability of life within the modernist heritage and how reprogrammed urban housing can become a valuable agent of socialization in the process of urban regeneration.
Enhancing living standards implies a particular challenge in the context of modernist residential architecture that emerged as a result of deterministic nomenclature and standardization of living space. In this sense, reprogramming strategies are reflected in bridging the gap between mono-functionality (a prescriptive program of the inherited residential part of Genex Tower) and new contents that can generate added value and reach the contemporary standard of living spaces. Accordingly, the nature of the architectural program directed towards the enhancement of living standards is based primarily on disparate hybridity-characterized by the pursuit of economic benefits. Adding contents for leisure culture affirmation within the existing housing units results in unexpected functional configurations. In terms of functional performance of the architectural program, Conceptual Model 3 combines prescriptive and spontaneous programs to create a balance in newly defined functional configurations. Prescriptive programs refer to the inherited functional order of residential units within the Genex Tower. In contrast, spontaneous programs refer to the new contents of contemporary everyday life that are implemented within the existing inherited framework. Although this conceptual model combines several types of architectural programs in accordance with the functional performance and that a conflict in such relations could be expected, it is indifferent, resulting in the preservation of the existing deterministic form and an indeterminate program.
4.1.4. Conceptual Model 4: Reprogramming Leisure Time—Enhancing Spiritual Fulfilment
The outcome of this reprogramming perspective is a conceptual model that questions attitudes towards the architectural heritage based on the observation of the building predominantly as an iconic material structure. Starting from the attitude that the architectural structure lives as long as it is actively used, as long as it is full of city noise and does not represent an exclusively frozen artefact of the past, this conceptual model deals with leisure culture due to the already inscribed dichotomy working–living, i.e., work–leisure time. Such a reprogramming framework enables that the image of the city remains the same but is changed in a narrative manner. This subject engages with in-depth reprogramming of environmental (climatic), human (psychological), social (cultural and common) and aesthetic (space) programming values and indicators as particular concept generators. An eclectic program builds a link between the past and the present. The new leisure regime is the antithesis of capitalism. By interpreting the characteristic spatial elements, new ones are created, which build an image within an image. Through different ambiences, sequences of space and microclimates, the reinterpretation of the traditional public bathroom contrasted with the working space builds a new narrative of modern leisure culture, implying spiritual and cultural cleansing and a much-needed spiritual fulfilment of the contemporary citizen. Unlike the contemporary globalist spectacle of free time, it nurtures taken but deeply grounded traditions and places them in a new context. Genex Tower becomes a place to stimulate senses, a place of overemphasized reality, a point that generates the program in creating a flexible space.
The nature of the architectural program, which deals with enhancing spiritual fulfilment, is based on the cross-implementation of thematic and disparate hybridity. Thematic hybridity of the program implies dependence between different sequences of space towards the fragmentation of a form, while disparate hybridity of the program implies adding non-complementary functions to the existing architectural framework, which add value to the working–living dichotomy. Such a dichotomy most often results in a flexible space designed to engage different regimes and scenarios of space use that are often non-complementary to the primary function. Accordingly, the relationship between program and form within Conceptual Model 4 is conflict, which implies that programs and forms intentionally collide in order to generate unexpected events in space. Keeping in mind that spiritual fulfilment enhancement requires a high level of responsivity to users’ environmental conditions and behavioral possibilities, the functional performance of the program within Conceptual Model 4 is spontaneous (soft). It involves physically porous spaces with variable activities for leisure-time fulfilment.
4.1.5. Conceptual Model 5: Reprogramming Urban Nature—Enhancing State of Health
This conceptual model focuses on the reprogramming of modern heritage in harmony with nature. It starts from the traditionally developed relationship between modern architecture and nature, primarily from the aspect of big greenery spaces in-between buildings introduced to improve hygienic conditions and the health of residents. The decoding of programming values resulted in the conclusion that contemporary culture requires much closer contact with nature, primarily in terms of its integration with the built environment and blurring the boundaries between architecture and nature. The intrinsic value of biological diversity, as well as the ecological, genetic, social, economic, scientific, educational, cultural, recreational and aesthetic values of biological diversity and its critical role in maintaining ecosystems that provide essential services, represent critical foundations for sustainable development and human wellbeing [
41]. Reprogramming values and indicators that were crucial in terms of concept generation were environmental (climate), human (psychological), social (cultural and common), systemic (technologies) and aesthetic (tradition). This model deals with the concept of biophilia, which advocates an innate connection between humans and nature. Scientific studies have pointed out a multiplicity of benefits of nature for people, especially for children and older populations. People tend to show a positive response when they experience a connection with nature [
72]. When most cities suffer from health and environmental problems, enhancing the wellbeing and health of citizens is one of the urgent urban issues.
The nature of the architectural program built on the tendency to enhance health is thematic and based on the dependence between single spatial units or elements that bring benefits of nature and ecology for users. Creating a sustainable configuration of architecture and nature is the primary goal of this design strategy directed towards reprogramming urban nature. In the context of the relationship between program and form, the main goal in the design process is to achieve reciprocity. From an exterior aspect, the original form of Genex Tower is fully preserved. At the same time, interior space reciprocates the configuration assigned to the program by implementing a series of program scenarios that improve hygienic conditions and user health. Consistent with the concept of biophilia and the multiple benefits provided by ecosystem services at the interior level, the functional performances of the program in Conceptual Model 5 are spontaneous (soft) and create blurred boundaries between architecture and nature. In the context of architectural heritage, the introduction of nature through a spontaneous (soft) program also enables a high level of environmental sensitivity.
4.1.6. Conceptual Model 6: Reprogramming Urban Economy—Enhancing Economic Security
This conceptual model starts from the premise that due to changing the socioeconomic milieu, mainly due to the transition from socialism to capitalism, the heritage becomes intensely subjected to the norms of globalization. This premise generated a new look at the circularity of heritage, observing deterioration as an integral part of the architectural structure’s life. Through the decoding of particularly social (cultural and legal), systemic (processes) and economical (operationalization and maintenance) programming values and indicators, this concept develops a critical and, at the same time, provocative approach to modernist heritage. The physical framework of the model is challenged by structural characteristics and durability, methods of prefabrication and its characteristics, as well as economic aspects of rehabilitation that jointly argue and illustrate the circularity of the concept. The process of decomposing the existing building and extending it through the life of individual prefabricated parts lies in the spirit of the modernist architecture tradition based on prefabrication and modularity. In this way, time is the generator of myth, forming a narrative that will outlive it.
The nature of this architectural program built on the aspiration to enhance economic security is characterized by both thematic and disparate hybridity in accordance with the experimental nature of Conceptual Model 6, which affirms the idea of circularity and the reconfiguration of Genex Tower into a series of new typologies. In this case, the disparate program is defined by new typologies/spatial entities that are built using the structural elements of Genex Tower, while the thematic program is defined by its singleness of function between the various assembled elements. A specific economic benefit that engages the reuse of materials and structural elements is achieved as the overall outcome of the spatial structure reconfiguration. Accordingly, the relationship between program and form within Conceptual Model 6 is reciprocal, which means reconfiguring the form to reciprocate the configuration assigned to the program. At the level of the architectural program’s relation to functional performance, this conceptual model has twofold orientation—both prescriptive (hard) and spontaneous (soft). The prescriptive nature of the program is recognized at the spatial level of the activity setting and the single spatial unit/room. It implies fixed spaces necessary for basic operation and servicing. In contrast, the spontaneous nature of the program is recognized at the spatial level of the region/landscape. It implies a heterogeneous distribution of new typologies created by the reconfiguration of inherited spatial structure.
4.1.7. Conceptual Model 7: Reprogramming Collective Memory—Enhancing Attachment to Place
Conceptual Model 7 views heritage as a very important element of our daily lives and quality of space in the level of intimacy between users and space. In order to know oneself, the heir must first (re)cognize the inheritance (endowment, bequest, ancestry) in order to understand its essence and the value of understanding what was before. Knowing the inherited, the heir is in a position to preserve it from oblivion, as well as to preserve the continuity of his own being. The significance of the Genex Tower is not seen as a completely isolated and segregated link, an isolated heritage monument, but as an inseparable whole not only within a narrower context or within the New Belgrade context but within the broader context of Belgrade city. In line with that, the environmental programming value (urban context) was one of the main concept generators, as well as social (cultural and common) and aesthetic values (style and tradition). Accordingly, this model considers heritage not only as a space for selected content but also as its content. In this way, it has the potential to provoke and intrigue visitors and to provide a special kind of education and preservation of memories (knowledge) of the past. The general idea of the model is to tell the story of the city, go into its secrets and show its foundations, discover the sand on which it lies and, like roots, encompass and preserve all stages of its development. In this way, the space of modernist heritage becomes (and remains) a place, a place with which the user identifies and to which he is attached.
The nature of the architectural program built on a tendency to enhance attachment to place is characterized by thematic hybridity. The thematic program, in this case, is defined by the dependence of Genex Tower and elements positioned in public space to represent the inherited collective memory and build a new one. Keeping in mind that the focus of the Conceptual Model 7 is on the block and community level, the relationship of the program and form is indifference and is primarily focused on open public space. Accordingly, the spatial framework of Genex Tower is fully preserved in its original form, while the implementation of a series of activities in public space affirms the attachment to place. Regarding the functional performance of the program, the creation of porous spaces in the immediate environment of Genex Tower enables involving variable activities focused on collective memory preservation.
4.1.8. Conceptual Model 8: Reprogramming Urban Mobility—Enhancing Access to Community Resources
When it comes to leisure culture, mass culture contributes to losing a specific cultural identity. This conceptual model focuses on the problem of urban transformation of New Belgrade due to appropriating the open public spaces between the blocks for new buildings. This negative trend is accompanied by the lack of activities, attractiveness and dynamics of public spaces and deviation from the principle of “man as the measure of all things”. This conceptual model aims to give the individual, in addition to rest and leisure, the opportunity to nurture their personality and enhance the social dimensions of life through developed access to various community resources. The conceptual model advocates that improving mobility for social groups and diversity of common spaces encourages the further creation of additional diversity. In line with this idea, the particular concept generators are environmental (urban context), human (functional), social (cultural and common) and temporal (growth) programming values and indicators. Improving mobility encourages encounters, communication and exchange between users on an indirect and direct level. Intersections of the different flows and users generate “stages” that satisfy different social needs and leisure activities. “Stage” in this concept has two connotations, contextual, as a new typology created by various forms of human interaction, and formal, as a particular stage space, i.e., a place where plays, concerts, manifestations, etc., take place. In this way, the city is revived as a collective reality by rehabilitating the common spaces.
The nature of the architectural program built by enhancing access to community resources is characterized by thematic hybridity. The design strategy of Conceptual Model 8 is based on a system of flows and intersections that enable and improve access to various community resources. In that sense, the thematic program is manifested at the spatial level of the block and the community. It aims to encourage interaction in-between flows and nodes and the various public activities and contents. Such a framework further provides an opportunity to attract different user groups in line with seniority, gender, beliefs, hobbies and occupations. The relationship between the program and the form is reciprocal. The program adapts to the configurations of points and flows, i.e., the activities are grouped concerning the intersections and places of the highest concentration of users. In line with the functional performance, the program is spontaneous, involving variable activities which attract different user groups.
4.1.9. Conceptual Model 9: Reprogramming Urban Recreation—Reducing Level of Stressors
The construction of New Belgrade in the middle of the last century was characterized by transforming nature into an urban landscape. The “logic of domination” becomes especially recognizable in the previously deserted wetland refugee field, where the accelerated metabolic transformation of nature becomes most visible, both in physical form and in its socioecological consequences [
12]. Today, New Belgrade’s urban nature is particularly endangered, primarily due to densification and a poor attitude towards green areas. Through reprogramming urban recreation, this conceptual model has a capacity for improving the interaction of citizens with nature. Enhancing the concept of nature within the modernist city is founded on the possibilities of the transformation, expansion and improvement of environmental aspects of urban morphology, thus reconnecting people with nature. Programming values and indicators of particular importance for this concept are environmental (especially location and climate), human (psychological) and social (cultural and common), considering the importance of environmental issues, spiritual experience and individual as well as collective health and wellbeing. This model starts from the premise that it is essential to provide people opportunities to live and work in healthy places and spaces with less stress and greater overall health and wellbeing. In addition to nature’s visual and aesthetic qualities in an urban environment, nature reduces stress, improves cognitive function and creativity, improves our wellbeing and expedites healing [
72]. Nature has very characteristic complexity and order, so this conceptual model develops a specific system of natural environments and recreational spaces. Recreational contents are observed in the broadest sense of today’s culture and enriched with content that encourages socializing and social contacts. Including rich sensory information in an urban environment that adheres to a spatial hierarchy similar to those found in nature resulted in enhancing overall health and reducing stress in the New Belgrade modernist environment.
The nature of the architectural program directed towards reducing the level of stressors is thematic according to hybrid relations of program elements. Considering that the reprogramming of urban recreation is carried out at the spatial level of block and community in direct correlation with the level of landscape/region, Conceptual Model 9 engages a systemic approach characterized by the dependence between single spatial elements and encouraging their interaction with nature. The design strategy is based on an environmentally sensitive approach in which the form is ephemeral and the program encourages socialization and social contacts through recreational content. On one side, such a strategy results in an indifferent relationship between program and form, while on the other, in line with the functional performance, it generates a framework for variable activities which encourage the interaction of citizens with nature and urban greenery.
4.1.10. Conceptual Model 10: Reprogramming Proxemics—Enhancing Pleasantness and Safety of Physical Environments
Preferred social, personal and intimate distances depend on users’ individual characteristics and some attributes of their cultures. Proxemics are directly connected to how humans use space and the effects that population density has on behavior, communication, and social interaction. The COVID-19 pandemic and the demands for spatial and social distancing have raised a number of issues concerning architectural and urban design, especially from the aspect of dimensional analysis and established spatial relations and distances in space. These challenges are directly related to the harmonization of spatial and sociological levels within the “new reality”, the possibility of flexibility and transformability in the context of changed relations between personal and common space and changes in traditionally adopted behavioral patterns. This conceptual model is one of the possible answers to how a pandemic can change urban and architectural space’s understanding and spatial-program concepts. The main concept generators in proxemic reprogramming were human (physical), social (cultural and common), systemic (processes) and temporal (change) programming values and indicators. The application of contemporary technologies as a systemic process raises questions of defining new anthropometrical, dimensional and ergonomic aspects and the need to reconsider the pleasantness and safety of physical environments. The Modern movement in architecture started with Le Corbusier’s premise that “a house is a machine for living in” [
73]. This conceptual model examines the flexibility of spatial distances and levels through a design strategy that tends to a contemporary reinterpretation of the house as a living machine.
The nature of the architectural program built by enhancing the pleasantness and safety of physical environments is characterized by the twofold hybridity of the program—thematic and disparate. The thematic hybridity of the program implies dependence between a series of single spatial units of different dimensional and shape characteristics, resulting in the fragmentation of a form. The disparate hybridity of the program implies the creation of specific leisure and work contents that should economically strengthen the existing framework of the living space of Genex Tower. The design strategy of Conceptual Model 10 is based on the reconfiguration of the interior spatial structure of Genex Tower. The exterior architectonic and silhouette are preserved in the overall picture of the landscape/region. Reprogramming proxemics thus results in indifference between form and program—the form accommodates different arrangements of leisure and work contents resulting in the preservation of the existing deterministic form and an indeterminate program. The design outcome is reflected in improving the functional performativity of the space by complementing the existing residential framework in Genex Tower towards “the living machine”. Conceptual Model 10 combines prescriptive and spontaneous programs to create a balance between inherited spatial framework and newly defined functional configurations. The prescriptive program refers to the functional order of the residential part of Genex Tower, while spontaneous programs refer to the new contents of contemporary everyday life that are implemented within the existing inherited framework.
4.1.11. Conceptual Model 11 Reprogramming Architectural Tourism Scenarios in the Modernist City—Enhancing Cultural Diversity and Social Acceptance
The emphasis of this conceptual model is on the tourist potentials of the modernist architecture of New Belgrade. Around the world, we can notice emerging practices of the “tourism of the ordinary” directed to the patterns of tourism consumption of practices, places and people that do not fall in the category of touristic attraction [
74]. In this context, New Belgrade is slowly becoming explored by tourists individually or in organized walking or cycling tours. They are interested in principles of modernist architecture implemented on a large scale and the consequences of post-socialist transformation. The list of the most visited Belgrade museums shows that the memory of Yugoslavia is a significant tourist attraction. New Belgrade remains perhaps the best example of realized socialist utopia. Visits to New Belgrade represent an attraction for both urban exploration and cultural practice. This conceptual model starts from the premise that tourism promotion is sustainable to the extent that it produces not only economic impacts but also contributes to community wellbeing [
40]. It re-examines these potentials through the authentic ambiences and activities of everyday life that marked socialist culture. In line with that, key concept generators are environmental (urban context), social (cultural and common), temporal (growth) and aesthetic (tradition) programming values and indicators. Preserving tangible and intangible heritage bounds all generations together, creating the unique essence and spirit of socialist society. Presenting the authentic nature of socialist culture through characteristic dwelling units of “Belgrade housing school” [
71] enables tourists to experience this characteristic space and culture and at the same time to learn about one specific period and culture of living. In the context of mass tourism and globalization, the preservation and presentation of tangible and intangible heritage through the possibility of personal experience of these values play very important roles in the contexts of cultural tourism, and social dimension of heritage preservation, especially from the aspects of enhancing cultural diversity and social acceptance.
The nature of the architectural program focused on enhancing cultural diversity, and social acceptance is characterized by disparate hybridity, which is achieved by adding tourist facilities that increase the economic impact of the residential part of Genex Tower. In addition, thematic hybridity is recognized in line with the uniqueness of the tourism-oriented function. Since the focus of Conceptual Model 11 is constituted by creating contemporary tourist regimes within modernist residential areas, the basic design strategy aims to create different typologies of housing units that can respond to the needs of different user groups in the context of the city as a tourist polygon. The relationship between form and program is indifference. This relationship is a consequence of the design intention to preserve the existing spatial framework both at the level of exterior and interior and to establish new functional order. Conceptual Model 11 combines prescriptive and spontaneous programs to create a balance between inherited residential framework and newly defined tourist function. The prescriptive program refers to the fitting of tourist functions into the existing physical framework and building services. Spontaneous programs refer to the affirmation of new contents and activities of contemporary tourism resulting in the reconfiguration of existing inherited framework.
4.1.12. Conceptual Model 12: Reprogramming Public Space—Enhancing Community Connections
Bearing in mind that the change of state system and dominant social goals in Yugoslavia after the Second World War conditioned radical transformations of urban life, architecture was required to have a new concept of housing estates in accordance with the mentioned principles of creating a new socialist society [
12]. The basic structural model of the modernist city concept in the newly designed settlements was an open block with independent buildings surrounded by greenery. The focus was on a healthier environment, a large open public space and opportunities for active recreation. However, the insistence on large dimensions in modernism resulted in a loss of humanity, a disturbance of environmental perception and a lack of social interactions and identification with the settlement [
12,
75,
76]. Accordingly, this conceptual model advocates a “shredding” approach through the design of modular, holistic public spaces. Modular environments have the capacity to accommodate different activities. Therefore, the concept is based on a complex, comprehensive and interdependent system of social interactions. The main concept generators are environmental (urban context), social (cultural and common), temporal (growth) and aesthetic (tradition) programming values and indicators. In this way, the model affirms at the same time continuous interaction between users mutually but also their interaction with the environment, producing new forms of social interaction and new spatial relations. The result is the architecture of relations. In addition, the experience of space is perceived as a direct connection with social dimensions of space and the intensity of social interactions.
The nature of the architectural program directed toward enhancing community connections is characterized by thematic hybridity. The design strategy of Conceptual Model 12 is based on the fragmentation of public space and the singleness of function between the various assembled elements, which define the comprehensive form of public space through repetition. The focal spatial levels of this model are block and community with the primary intention of networking with a broader context and public spaces in the immediate environment. The relationship of form and program is indifference, resulting from the design intention to enhance community connections through developing a framework for enhancing place attachment to Genex Tower. Accordingly, the focus of the architectural intervention is within the unbuilt spatial framework opposite to Genex Tower. In line with the functional performance, the program is spontaneous, involving variable activities that attract different user groups and provide polygon for diverse activities.
4.2. Multiscale and Value-Based Heritage Reprogramming Perspectives
This part of the findings and discussion tends to establish an argumentative mapping of the presented conceptual models in relation to the value-based approach in architectural programming and a multiscale approach for the purpose of decoding a particular spatial focus of conceptual model development. By the nature of the discussion, it is cross-cutting, considering 12 conceptual models, first with programming values (value track) and then with spatial level (scales) references for modernist architecture (multiscale track).
Insight into the value track analysis (
Table 4)—conducted by identifying their relevance/irrelevance for perspective development or by identifying a particular value as a concept generator for reprogramming—primarily recognizes the capacity of the methodological programming framework to be an assessment tool for the valorization and conceptual foundation for architectural heritage reprogramming. First of all, it is recognized that the specific framework of conceptual models in line with the social dimensions of wellbeing has completely different value indices, i.e., none of the 12 identified conceptual models contain an identical relationship of particular concept generator with other value factors. Such a finding is a direct indicator that the matrix of values for reprogramming cannot be established at the universal and general level but that the relevant values can be identified concerning the conceptual idea, motivation, identified gaps for bridging or potentials for enhancement, contextual features as well as the social dimension of heritage. This interpretation can also be related to the type of heritage that is the subject of reprogramming. Accordingly, this research illustrates value-based architectural programming potential for creating different conceptual models for achieving various social wellbeing dimensions.
Observing the distribution of indicators denoting particular concept generators, it is recognized that all conceptual models have a focus on generating concepts within social values (cultural, legal, common). All conceptual models have two values within the social category that open perspectives for reprogramming. The emphasis is primarily on cultural and common values, while legal values are consistently recognized as relevant. In addition, it is recognized that all conceptual models include additional particular concept generators in other value categories, which indicates the need to holistically view all value categories and consider them as a critical framework for design. This also confirms that values should be identified in a synergy of different contextual factors and indicators.
Insight into the multiscale track analysis (
Table 5)—conducted by identifying the influence/neutrality of particular scale (spatial level) for perspective development or by identifying a particular spatial focus for concept development—confirms the multiscale approach as a leading prospectus for achieving a reflexive dialogue between heritage and contemporary architecture. Findings point out that heritage entities should be understood in their broader context in order to argumentatively establish a value framework in line with the critical urban environment. As a case of value-based analysis, it is recognized that the specific framework of conceptual models in line with the spatial levels has completely different value indices, i.e., none of the 12 identified conceptual models contain an identical relationship of particular spatial focus with other value factors. Particular spatial focus is primarily assigned concerning the user–environment–behavior relations and the degree of spatial dependence concerning sociological levels.
Observing the distribution of indices denoting a particular spatial focus, it is recognized that all conceptual models have a focus on generating concepts within the building and block level. On the other hand, it is recognized that each of the 12 conceptual models contains a particular spatial focus on one of the higher or lower spatial scales. Such values confirm the thesis that architecture is a complex systemic construct reflected in a different hierarchical order. Decoding the architectural heritage values contains a broader contextual background and factors in relation to the primary scale of the architectural intervention.
The results have shown that the multidimensional nature of the architectural programming methodological approach in the context of modernist heritage and, accordingly, the synergy of different programming values (environmental, human, social, systemic, temporal, economic, aesthetic) provides sustainable access to heritage and has the capacity to improve the social wellbeing of individual users but also the wider community.
The evaluation of the results thus indicates the possibility of improving the social dimension of heritage protection and reuse, as well as the need to shift the focus from exclusively material and formal values of heritage towards social and cultural aspects in accordance with the contemporary society and culture needs. The value-based architectural programming approach is based on the adaptive logic of architectural practice. It reveals the possibilities of transformation, expansion and improvement of aspects of wellbeing in the built and natural environment through a sensitive attitude towards inherited values, which intensifies user–heritage relations. Traditional architectural approaches to heritage are generally limited to considering only certain aspects and values, not taking into account the complexity and indissolubility of all aspects and especially the relation of social aspects and values with other values. In addition, the evaluation confirmed the multiscale nature of this approach and the possibility of targeting different spatial dimensions: from an individual ambience to entire culturally inherited landscapes.
Accordingly, the value-based approach of architectural programming presupposes the establishment of a sensitive relationship with the specific climatic-ecological, social and cultural context and implies the enhancement of various social wellbeing dimensions.
4.3. Decoding Nature of Architectural (Re)Program
Insight into the applied types of the architectural program within conceptual models (
Table 6—related to architectural programming types provided in
Table 2)—conducted by identifying different relations in-between program elements, in-between program and form, as well as identifying functional performance—provides confirmation of the practice-oriented nature of the applied methodological framework. In addition, the possibility of the proposed methodological framework to develop different types of architectural programs according to the environmentally sensitive heritage framework is recognized. Considering the distribution of the applied types of the architectural program within different conceptual models, we can recognize specific clusters—cluster 1 (conceptual models 1, 7, 8, 9 and 12), cluster 2 (conceptual models 2 and 5) and cluster 3 (3, 10 and 11). At the same time, conceptual models 4 and 6 have a specific distribution of the observed characteristics (index) concerning the applied types of the architectural program.
The cross-examination of identified clusters in relation to multiscale and value-based track analysis indicates that the type of architectural program implemented within a particular conceptual model is related to programming values and the spatial levels of a particular concept generator.
The first cluster of conceptual models (1, 7, 8, 9 and 12) focuses on architectural intervention at the level of public spaces (community and block level) within the immediate environment of Genex Tower. It is based on a design strategy to fully preserve the building and affirm the thematic and spontaneous program, while the relationship between the form and program is indifference.
The second cluster of conceptual models (2 and 5) focuses on architectural intervention at the level of Genex Tower (building level). It is based on a design strategy to generate a new spatial configuration at the interior level and to affirm the thematic and spontaneous program, while the relationship of form and program is reciprocal.
The third cluster of conceptual models (3, 10 and 11) focuses on architectural intervention at the level of a single spatial unit/room and activity setting. It is based on a design strategy to generate a new spatial configuration of residential units. The specificity of this cluster is reflected in the engagement of both the thematic and disparate programs in terms of hybridity and both the prescriptive and spontaneous programs in terms of the functional performance of space. The relationship of form and program is indifference, bearing in mind that the architectonics and spatial structure of Genex Tower are completely preserved.
Conceptual model 4 is primarily specific due to the conflict between form and program, while conceptual model 6 is specific due to the reciprocity of form and program. These two conceptual models have a focus on architectural intervention at the building. However, the design strategy is experimental in nature—it decomposes the form and more radically restructures the interior of the building resulting in a specific architectural program outcome.
In a comprehensive understanding of the relationship between the types of architectural programs and conceptual models, it is recognized that all conceptual models have engaged thematic programs in terms of hybridity and spontaneous programs in terms of functional performance. On the other side, the disparate program is characteristic of conceptual models whose particular concept generator is a specific construct directed towards economic strengthening (such as circularity, tourism and the dichotomy of living—work–leisure time). A prescriptive program in terms of functional performance occurs when the existing residential function of Genex Tower is retained, while the spontaneous program supplements additional variable activities.