Identifying Institutional Barriers and Enablers for Sustainable Urban Planning from a Municipal Perspective

: Steering towards a path of sustainability and resilience in urban environments depends greatly on effective institutions, governance and strategic planning. National governments are increasingly expanding municipal institutions’ mandates by delegating decision making on land-use planning and urban development to local and regional levels. This trend poses municipalities with a complex challenge of setting clear sustainability targets and lifting the institutional barriers inside and outside of their organisation. Based on the business motivation model (BMM), this study presents the results of a thematic analysis identifying barriers and enablers characterizing the institutional capacity base of a municipal organisation in the context of sustainability at an urban level. The results show that the most relevant barrier is the lack of standardisation in sustainability-related working practices, whereas the main institutional enablers relate to flexible working directives that promote the development of innovative projects. This points towards a strong need for a more integrated, dynamic and powerful development approach for sustainable urban areas on a local level.


Introduction
By 2050 the world's population is projected to reach 10 billion people, from which 67% is expected to live in urban areas, growing from a 54% share of urban dwellers in 2016 [1]. Furthermore, the ongoing urban transition increases the pressure on the earth's resource base and often generates social negative externalities and diseconomies of agglomeration [2,3]. These factors have exacerbated the need to steer the transformative force of cities towards sustainability [3].
This paper understands sustainability as the process which allows humans to satisfy the basic needs of present and future generations, while reducing poverty and safeguarding the ecological support systems [4,5]. In an urban setting, this entitles the recognition of the interlinked effects of economic and socio-cultural considerations while striving for enhancing environmental quality, economic efficiency and human well-being, all embedded within an Institutional component [6,7]. In this context, effective institutions, governance and urban planning become primal for achieving urban resilience and sustainability [3]. The ability of any city to take programmatic action towards sustainable urban development, climate change adaptation and other related concerns, is constrained by the governance capacity of its local authorities [3]. This highlights the importance for municipalities to overcome institutional constraints by means of a broader institutional capacity base [2].
At a local scale, national governments have often delegated the responsibility of land-use planning and development to municipal authorities [8,9]. This means that local authorities, such as municipalities, represent the core institutional unit in charge of the decisions and regulations concerning the neighbourhoods, inhabitants, and built environment of their respective jurisdiction [10]. Nonetheless, local authorities tend to operate within an institutional void, where the complexity of governance jeopardizes the clear definition of roles and responsibilities in relation to the decision-making process of urban development [10]. Moreover, local governments are usually siloed and poorly coordinated, which leads to ineffective decision making and policy development [2,10]. As a result, sustainable urban development poses a complex challenge for governmental organisations. That is further exacerbated by the fact that the lack of a uniquely agreed definition of sustainability [11] makes it difficult to set targets and measure progress [2,12,13].
Previous research has recognized that institutional barriers for adopting urban sustainability practices are multidimensional in nature [14]. Furthermore, they can arise from a wide range of influential factors which exist both within and beyond the organisational boundaries of the involved actors [2,8,10,12,15]. From the municipal authorities' point of view, these influential factors can be translated into two main challenges for achieving practical implementation of urban sustainable planning. The first challenge covers the need to enhance the municipalities' linkages with external governance and jurisdictional contexts [10,16]. This includes aligning or even going beyond national-level regulations, involving and engaging political actors and ensuring financial resource availability [2,12,15]. The second challenge encompasses the need to enhance their institutional capacity, which refers to the ability of governmental organisations to respond and manage current sustainability-related challenges through decision making [17]. This capacity is ultimately dependent on components such as leadership, organisational cultures, technical practices and context-relevant knowledge [8,16].
Overcoming institutional constraints has been identified as an important enabler for engaging in effective sustainable-oriented decision-making processes [2,18]. Thus, institutional capacity building is considered to be a necessary requirement to engage in planning and implementing sustainable initiatives [16][17][18][19]. Unfortunately, existing literature in this field is lacking an exhaustive characterisation framework to guide the categorisation and subsequent analysis of the different elements conforming to this internal institutional capacity base. Because most scholars select different analysis levels, research methods and theoretical perspectives [20], the identified barriers and conclusions from different research projects are generally highly context-specific and difficult to compare and generalize [19]. Consequently, this hinders their potential as general decision-aiding tools that facilitate organisations in making decisions.
To address the shortcomings of existing institutional characterisation frameworks to support municipalities in moving towards sustainable urban planning, the work presented in this paper aims to provide an inclusive characterisation of the institutional capacity base of a municipality for promoting a transition towards sustainable urban development. By applying the standard internal influencers categorisation from the business motivation model (BMM) [21] to a Dutch municipality, existing institutional barriers and enablers for engaging in sustainable initiatives are identified, which allows to understand and characterise its internal institutional features and capabilities. Although the research work concerns a specific municipality, the outcomes can be generalized to other municipalities with similar dimensions and organizational structures. Based on this institutional assessment, recommendations will be made towards institutional capacity building as a means to increase the readiness of a municipality to pursue its sustainability aspirations.
The next sections describe the theoretical background of this study and the undertaken research strategy. Finally, the results are presented followed by discussion points, conclusions and recommendations for future research on the field.

Institutional Capacity Base for Sustainable Development
In general terms institutions can be regarded as the "rules of the game". This means a set of stable, abstract and impersonal rules governing the relationships between separate social constituents [22]. In view of this, organisations can be understood as institutional arrangements aimed to enable conscious and deliberate coordination of activities within identifiable boundaries [22]. Therefore, organisations act as governance structures, which operationalise and implement the rules of the game as defined by the institutional environment in which they operate [22].
This paper understands institutional capacity as the capacity of organisations to fulfil their objective of effectively implementing and operationalising the rules of the game in the context of urban sustainability. Previous research has recognized the importance of including an institutional dimension in the context of urban sustainability assessment [13,23,24]. The institutional component reflects on the governance processes and linkage promotion between environmental, social and economic concerns [24]. In addition, in sustainability practice, the institutional dimension requires knowledge on procedures and organisational structures, such as relations of work, hierarchies, lines of command, division of labour, channels of communication, values and attitudes present within their organisational boundaries [15].
Institutional factors could act as inhibitors for the adoption of sustainability-oriented practices [25]. In this regard, the institutional capacity base determines the extent of the ability of a given organisation to mobilise resources to respond to and manage current economic, social and environmental challenges [17,20,26]. This requires a broader institutional capacity base [2].
Institutional capacity is described through three main dimensions: knowledge resources, relational resources and mobilisation capacity [19,26]. These depend on a wide variety of factors across different levels within the organisational environment. Because of this multidimensionality, there is not a unanimous model to characterise the practical repercussions of institutional capacity within organisations willing to promote urban sustainable development. The existing literature provides different models to address the topic. For instance, the identification of key challenges in relation to the institutional limitations [10], the definition of Five Factors for urban sustainability [12] or the Threelevel analytical framework describing institutional components influencing sustainable development. Micro-level refers to monetary and human resources within the organisation. Meso-level, in turn, encompasses organisational norms and decision rules. Finally, macro-level covers the networks of stakeholders and legal contexts around the organisation [15]. To further describe this landscape Table 1 displays a comparison of the main characteristics of existing institutional analysis frameworks.
These frameworks show substantial differences regarding the characterisation and categorisation of the institutional components, thereby conditioning the ability to implement institutional assessments regarding the capacities of any organisation to engage in urban sustainable development. Therefore, the need to support the institutional assessment process becomes essential for any organisation in order to coherently increase its institutional capacity base [27].

Internal Influencers from the Business Motivation Model (BMM)
The BMM is a set of built-in concepts which define the core aspects of business plans [21]. It is a neutral and simple methodology that allows its specification to be extended to different organization types. Hence, in the context of this study, the BMM is applied because of its potential as a general cross-discipline framework to analyse and characterise institutional capacities at a municipal level in the context of sustainable urban developments.
The BMM covers two main aspects regarding business plans: (1) Ends and Means, which describe organizational goals and objectives, as well as the strategies and tactics for achieving them; and (2) influencers, which define the constraints and conditions giving shape to the aforementioned elements, including the assessment of its impact over the organizational ends and means [21]. It is built over motivation, which is a basic cornerstone of organizational practice. Figure 1 displays the interrelations of all the elements covered by the BMM. This encompasses the aspirations of an organization communicated through its vision, and the plans on how to realize said vision, communicated through its mission [21]. A key component in the BMM is the entity Influencers. In general, influencers represent the elements that can hinder or assist the organization in realizing its aspirations. The BMM considers two types of influencers: external and internal. This study was conceived as an internal assessment focusing on the internal influencers, which are defined as the factors and conditions existing within the organizational boundaries [21]. According to the authors' point of view, these are particularly relevant for sustainability challenges due to two main reasons. First, they provide the basis for characterising the institutional factors capable of hindering/promoting organisational learning and adaptation towards a broader institutional capacity base. Second, they depend exclusively on the organizational dynamics, and therefore can be changed/adapted within a proactive stance, as opposed to a reactive attitude determined by external influencers.

Materials and Methods
The research design consisted of a dual approach. Initially, by means of a desk study, the landscape of existing models characterising the institutional capacity inside organisations steering towards urban sustainable development were identified. For this objective, existing literature was reviewed by using the search engine Google Scholar and using search terms such as institutional barriers AND urban sustainability. Subsequently, these results were complemented and updated by means of a more focused search on specific journals: (1) Sustainability, (2) Land; (3) Planning Practice and Research; and (4) Urban Studies. They were chosen due to their potential affinity with the content of the work. For this last search, only the results from 2016 onwards that matched the following search terms were considered: government organisations AND urban sustainability OR sustainability AND local planning OR institutional capacity AND climate change OR climate adaptation AND barriers. The results of the aforementioned inquires provided the basis for defining the landscape of characterisation models described in Table 1.
In addition to the desk study, a study case was performed on the municipal organisation from the city of Apeldoorn, located in the province of Gelderland, The Netherlands, that possesses a population of 162,445 inhabitants (2019). Hence, this research followed an inductive thematic analysis approach based on a qualitative research approach. This provides the tools to analyse and generate knowledge about real-world problems which take place as the result of the experiences and interpretations that humans make of their reality [28], such as the barriers and enablers for urban sustainability transitions within a municipal organisation.
The research process followed the iterative model described in Figure 2. This approach, adopted from [29], considers a retroactive effect of each subsequent phase into the preceding ones. Hence, the final result is the convergence of the cyclical dependencies generated by iteratively performing the different steps and readjusting intermediate results along the process. The data collection consisted of 12 in-depth interviews supplemented by information obtained from official documentation within the municipal organisation. These sources are suitable for an inductive thematic analysis since they provide free-flowing raw data which has the potential to be later identified and coded into adequate themes [28]. The interviews were focused on understanding the motivation and context of the municipality, as well as its current capacity base for sustainable urban development. Under this premise, they revolved around three main topics: (1) the vision of the city council for the development of the built environment; (2) current translation of said vision into goals and strategies; (3) details of the implementation of strategies into workable programs/projects. These semi-structured interviews enabled the adoption of a particular line of inquiry while allowing the inclusion of specific knowledge and expertise from any given respondent [28]. In addition, they were administered individually in a face-to-face setting where the interviewee received an informative introduction with an overall description of the purpose and the research process. The interviewees were chosen by means of judgement sampling, preferred when a specific limited set of people possess the information the research ought to acquire [30]. In this case, the purpose was to reflect on the relevant knowledge domains within the organisation. Consequently, the chosen sample was formed by experienced and knowledgeable officials from the functional units of the municipality who were directly involved in the planning, management and development of the urban built environment. Hence, the sample was formed by respondents from three main units: (a) Unit of projects, real state and land (engineering office and project management)-6 respondents; (b) unit of spatial living environment (programs and policy)-3 respondents; (c) unit of management and maintenance-3 respondents.
The data analysis was divided into three interrelated phases: (1) data processing, which transforms the raw data from the interviews into organized and manageable chunks of information; (2) data reduction, which is performed by coding and categorizing the collected data [30]; (3) drawing of conclusions, which addresses the production of focus points and considerations to be taken by the municipality to facilitate the inclusion of sustainable urban development as a motivator for policy-and decision making.
The codification process required first a definition of coding units, which represents the overall idea of the text it seeks to code so that its meaning is not altered, and no relevant information is left out [30]. In this context, the textual data from the processed interviews were coded into statements, which were the coding units. Statements were used for this purpose because of their ability to represent the expression of an idea or assertion about a particular topic [30]. Subsequently, overarching organizing theme groups were identified from the data statements. These were later aligned with the default categories described in the BMM document, shown in Table 2.
The internal influencers describe the institutional dimensions that impact the realisation of organisational objectives [21]. This means that they can be easily linked to actions within the municipality, thereby facilitating the objective of organisational change/learning to promote urban sustainable development. Table 2. Categories and definitions in relation to internal influencers [21].

Category Description Assumption
Something that is taken for granted or without proof.

Explicit Corporate Value
An ideal, custom, or institution that an enterprise explicitly promotes or agrees with (either positive or negative).

Implicit Corporate Value
An ideal, custom, or institution that an enterprise not explicitly declares but is nonetheless understood by some or all of the people in an enterprise. Habit A customary practice or use. Infrastructure The basic underlying framework or features of a system.

Issue
A point in question or a matter that is in dispute as between contending partners.

Managerial Prerogative
A right or privilege exercised by virtue of ownership or position in an enterprise.

Resource
The resources available for carrying out the business of an enterprise, especially their quality (financial, human, etc.).

Results
This section is divided into three subsections intended to provide a snapshot of the institutional capacity of the municipality. The first two subsections point out respectively the relevant barriers and enablers which were found to determine the municipal capabilities for implementing sustainable urban planning practices. In turn, the last subsection presents the opportunities for improvement discovered during the analysis of the collected data. Table 3 presents a complete overview of the identified institutional barriers within the organisational boundaries of the municipality. It describes the findings by grouping individual relevant statements into suitable overarching organising themes. Thereafter, the BMM internal influencers categories are used to encompass all overarching themes and present a comprehensive categorisation of the identified barriers.

Institutional Barriers
The first category in which this study identified barriers for the municipality of Apeldoorn was explicit corporate values. Those relate to the lack of standardised directives for including sustainability in urban development projects. As a result, sustainability objectives are included in late phases of project design and tendering, where their influence and capacity to steer the outcomes of a project are lower.
The second category where barriers were identified is infrastructure. This category covers the current working procedures of the municipality. In this regard, the identified barriers relate to topics such as the lack of standardised criteria to assess projects on their sustainability performance. Moreover, a narrow vision of sustainability predominates within the municipality, which means that sustainability is usually viewed as a synonym for CO2 emissions reductions. Consequently, wider environmental impacts are overlooked and the interrelations with social and economic dimensions are neither accounted nor incorporated as project requirements. Furthermore, the municipality operates under a segmented organisational structure, which limits collaboration between functional units, as objectives and budget definition is done independently by the unit. Finally, standardised collaboration practices able to guide potential multidisciplinary projects were not identified. These factors can be evidenced in some relevant statements from the interviews, for instance when asked about the way sustainability is being considered in projects: "For Sustainability I have an indicator, which it is CO2, but that is a very small perspective for sustainability." [T-35; Public Space Director]. Or when describing the way of working of functional units within the municipality: "We try to work together but there is no money flowing from the social program into asphalt or concrete projects, and the opposite is also not observed." [T-34; Public Space Director].
The third category was issues and the identified barriers are related to the difficulty of translating high-level city goals into measurable and traceable project objectives. Thus, the steps and methodologies that should be adopted and implemented to assess the impacts of the built environment over social and economic areas of concern, such as, for instance, people´s productivity, mood and disposition to interact are unclear or inexistent at all. These influential factors can be evidenced in some relevant statements: "…the strategic goals for the city council are too far away from us." [T-63; Project Leader] and "…choose how to make people healthier or happier, but it's hard to know how far you will go in your public space to do that." [T-30; Public Space Director].
Last, within the category managerial prerogative, the main identified barrier covers the fact that individual roles are given the authority to exclude sustainability performance measures from project design and/or tendering processes. T-63;

Managerial prerogative
Permissive actor-led sustainability exclusion Circularity and sustainability are excluded from project performance measures on given projects.
T-62; T-65; Personal priorities are allowed to exclude sustainability criteria from given project orders. Note: the references to the sources of barriers and enablers correspond to statements obtained through the interviews conducted (see Appendix A, Table A1. Thematic analysis results) and are matched with those existing in the literature. They were given unique identifiers for facilitating the identification tasks. Table 4 provides a complete overview of the identified and categorised enablers found within the municipality using the same structure as that adopted in the identified barriers. Firstly, enablers categorised as explicit corporate values cover the fact that as a working directive, the municipality encourages the replacement of fossil-fuelled machinery by electrically powered ones, as an attempt to shift towards cleaner sources of energy. Moreover, on a project basis, a culture of coordination and negotiation between disciplines allows the project team to accommodate a wider set of targets and desired outcomes. In addition, the development of pilot projects serves as bottom-up knowledge sources where innovative designs or contractual models are tested with the objective of accelerating their organisation-wide adoption. Some relevant statements from where these factors arise are: "When they give more space to the building companies, we earn more money, so our incomes are increasing, but there's also fewer green spaces, less public spaces. So together we make a decision, and in that initial phase, we search together which combination is the best for the city, but also in time and in planning." [T-69; Project Leader] and "We see those pilots or new ways of working and we pick them up and we say this works; let's spread it out through the whole unit; let's make them bigger by communicating about them." [T-56; Unit Manager].

Institutional Enablers
Secondly, under the infrastructure category, the most relevant enablers lie in working practices, such as participative project governance, which allows citizenship requirements to be included in the project objectives. Regarding the definition of objectives, for both projects and functional units' yearly programs, the SMART methodology is implemented, which leads to objectives being specific, measurable, achievable, relevant and time bound. This has enabled each functional unit to translate the city council goals into workable objectives. These practices were mentioned by some interviewees: " Lastly, within the category managerial prerogative, identified enablers consist of the flexibility given to team leaders to include alternative criteria in tendering processes, specifically to include a contractor´s circularity knowledge and expertise into the decision process. In addition, the early involvement of particular actors from the municipality allows for sustainability objectives to be considered as part of the project in earlier stages within the design process. Finally, particular actors with influence to update the city's goals are allowed to take the learnt lessons from innovative pilot projects and steer the redefinition of said goals. This was corroborated by statements such as: "These projects make the city council thinking about the goals and redirect the goals that they now have. These projects are front-runners." [T-15; Energy Transition Manager] and "This project was unique because we didn't have a price, but we also didn't want a price. Actually, we wanted the best contractor who matched our ideals of what we thought of circularity." [T-70; Project Leader]. Table 4. Context definition phase-identified enablers for sustainable urban planning.

Organizing Theme
Basic Theme-Influencer Ref.

Explicit corporate value
Internal sustainable working directives The use of electric-powered assets is encouraged. Program goals on sustainability are aligned with city goals.
Management and maintenance plans across the functional unit are aligned with the city goals.

Managerial prerogative
Project-led improvement of long-term goals Innovative projects are allowed to steer the city goals definition and updating process. Circularity criteria can be included in early stages of given projects processes.
Note: The references to the sources of barriers and enablers correspond to statements obtained through the interviews conducted (see Appendix A, Table A1. Thematic analysis results). They were given unique identifiers for facilitating the identification tasks.

Enhancing the Institutional Capacity Base
Supported by emergent themes gathered from the interviews particular paths of action can be identified to integrate urban sustainability issues into the decision-making processes of the municipality. These are presented in Table 5. Overall, the results conform to a desired status of the municipality as a well-suited organisation with a suitable mobilisation capacity able to convert capabilities into concrete change actions. Explicit corporate values are the first category of proposed improvement opportunities. Important items within this category are the reduction in risk-adverse mentality to boost the adoption of change and innovation and the promotion of leadership as the main driver for change.
A second category for improvement is implicit corporate values. Here, the interviewees identified the need to foster a sense of urgency and responsibility inside the organisational culture to steer the development of the built environment towards sustainability. This could act as a motivator for stimulating change and break the status quo.
As far as the infrastructure category is concerned, sustainability practices could benefit from higher levels of coordination between functional units. This includes the development of combined agendas on long-term plans where the implementation of (re)development projects for the built environment can be aligned against a unified vision for the city. Furthermore, achieving financial integration would create a higher resource base for developing more ambitious projects intended to synergistically accommodate sustainability, climate adaptation and circularity objectives. Finally, these objectives should be defined by means of standardised guidelines and principles, thereby enhancing the potential of obtaining positive results. Table 5. Context definition phase-identified improvement opportunities for sustainable urban planning.

Organizing Theme
Basic Theme Ref.

Attitudes promoting change and innovation
Reducing risk-adverse and conservative mentality can boost pace of change and innovation. Financial integration Need to achieve financial coordination to allow circularity, sustainability and climate adaptation to be included in project definition T-74; Note: The references to the sources of barriers and enablers correspond to statements obtained through the interviews conducted (see Appendix A, Table A1. Thematic analysis results). They were given unique codes for facilitating the identification tasks.

Discussion
The results presented in the previous section display the recognition of the current institutional capacity base and the possibilities to steer organisational adaptation towards the inclusion of sustainability as a target in urban planning. As these features correspond to internal aspects of the municipal organisation, this section examines the extended institutional arena of the municipality and comments on further implications for its capacity base and preparedness for engaging in urban sustainable development. This is carried out by reflecting on the wider multidimensional conception of institutional capacity theory from the literature and the validation workshop with municipal decisionmakers.
As outlined before, the theoretical concept of institutional capacity is composed of three dimensions: (1) knowledge resources, (2) relational resources and (3) mobilisation capacity [19,26]. This study focused on a deeper characterisation of the internal factors influencing knowledge resources and mobilisation capacity within a municipal organisation. In relation to the three-tier analysis framework described in Nykvist and Nilsson (2009), this research dealt with factors found in the micro-and meso-levels, both of which analyse internal organisational features [15]. As a result, the macro level, which deals with relational resources, comprising external actors, influencers and linkages with wider societal values and policy networks [15,19], fell out of the scope of the study. In this regard, it has been recognized that institutional conditions for enabling climate action, and by extension sustainable urban development, go far beyond the enhancement of the internal capacity base of a municipal organisation. For instance, setting clear political priorities [26], fostering political leadership and ensuring suitable resource transfers act as enabling factors for improving urban governance processes [2,10,18].
The validation round with municipal decision-makers also revealed the importance of these existing external influencers over the municipal action. For example, they mentioned the strong power of the political agendas, evidenced through the characteristic short-termed objectives definition from political actors and exacerbated by the constant change in political parties and mindsets guiding their definition. These shortcomings originated from outside of the organisational boundaries of a local authority leading to barriers for sustainable action due to the lack of long-term perspectives and the lack of awareness and commitment from political actors to address sustainability in urban development initiatives [31]. The municipal decision-makers also mentioned the existence of funding restrictions for municipal action. Strict control and expenditure audits hinder the implementation of sustainable-oriented projects, as they usually represent higher initial costs in comparison to those related to business-as-usual projects. Hence, this imposition of restrictions on expenditure represents a major hindrance for complying with the need of delivering sustainable outcomes. The influence of financial auditors, who through monetary-based assessments are not yet able to understand the added value of a sustainable approach, remain reluctant to accept the associated higher initial capital costs [31].
Finally, the need to implement adequate frameworks for inter-organisational collaboration should be stressed. This factor covers the creation of a shared resource base in coordination with suitable spaces for dialogue and deliberation. This aligns with the findings from previous research, recognizing that reaching a more integrative approach comes as a result of the use of network processes accommodating different cross-sectoral policy framing and multi-level interdependencies [17].

Conclusions
By applying a thematic analysis based on the internal influencers from the business motivation model (BMM) to a Dutch municipal organisation, the following main conclusions regarding existing institutional barriers and enablers for engaging in urban sustainable development are worth highlighting.
Firstly, the study revealed that the most relevant barriers within the municipality root from aspects such as the lack of standardisation in sustainability-related working practices. This covers the definition of objectives and targets and their related assessment criteria. Moreover, an important cause is the predominance of a narrow vision of sustainability, thereby limiting the recognition of complex interrelations between environmental, economic, and social aspects. In addition, the study revealed a predominance of the status quo and a low level of collaboration among agents, as municipalities often operate with segregated functional units.
Secondly, in relation to the institutional enablers, the results suggest that the most important enablers can be associated with elements such as flexible working directives that have the potential to lead to innovative project development processes. Furthermore, the SMART methodology yielded positive results in allowing high-level goals to be translated into workable agendas and programs for urban development.
Initial recommendations for enhancing the institutional capacity base for sustainable action should focus on the abatement of risk-adverse mentality and unresponsiveness to changing demands. By doing so, values such as leadership and a sense of responsibility are allowed to rise, pursuant to reduce the power of the status quo and boost the adoption of innovation and change. Furthermore, the infrastructural features of the municipality, which determine their processes and ways of working, should be adapted. Decreasing the fragmentation of the organisational structure could lead to higher coordination and collaboration within the organisation regarding sustainability. In this way, the municipality could accommodate the multidimensionality of sustainability by defining combined agendas, boost knowledge sharing and finally attain financial integration. This would provide an enhanced resource base for funding sustainable urban development initiatives.

Limitations and Future Research
As previously discussed, the institutional arena of municipal actors includes not only internal mobilisation capabilities but also the coordination with extended governance networks and societal values. In this context, the importance of achieving a wider participative decision-making process, particularly in the development of the built environment has been agreed on by scholars and political actors alike [17,[32][33][34][35]. The research presented in this paper was limited only to the decision-makers within the sphere of the Municipality of Apeldoorn as an organisation. Hence, the results do not reflect the inclusion of the visions of a wider range of stakeholders, namely those included in the Iron Triangle composed of businesses, neighbourhood groups and government officials [35].
Recommendations for future research include the need to study external arenas for dialogue and debate on sustainability in urban areas. Hence, it is necessary to increase the governance network and enhance external collaboration. This covers the creation of intermunicipal networks able to boost knowledge dissemination and cooperation [36]. Moreover, a need exists to involve external actors from the energy and building sector, such as real estate developers, contractors, and electricity grid and district heating operators in the discussions. An additional point of attention for future research lies in ways to achieve the engagement of political actors in decision making, as this would allow sustainability long-term objectives to be prioritised, supported and funded as part of the strategies for the development of urban centres [2,26,37].
Finally, further research is needed to determine the degree of generalisability of the outcomes presented in this paper, since they are relevant for municipalities within countries with similar planning and governance structure/mechanisms as those existing in the Netherlands. Particularly, it would be of interest to consider the effects of different political realities, public infrastructures and cultures present in other countries. Informed Consent Statement: Informed consent was obtained from all subjects involved in the study in context of the thesis on which the paper is based.

Data Availability Statement:
The data that supports the findings of this study are presented in the paper.

Acknowledgments:
The authors would like to thank the participants of this study for their valuable insights and time. The authors are also grateful for the support received from the Gemeente Apeldoorn.

Conflicts of Interest:
The authors declare no conflict of interest.
Appendix A Table A1. Thematic analysis results.

Id. Basic Theme Organizing Theme Global Theme Evidence T-01
Aligned goals of climate adaptation working programs and board objectives.

Institutional Aspects
Our goals for climate adaptations have to fit in those strategic goals

T-02
Aligned goals of Circularity working programs and board objectives.

Institutional Aspects
But also, that's also true for circularity and sustainability

T-03
Aligned goals of Sustainability working programs and board objectives.

Institutional Aspects
But also, that's also true for circularity and sustainability

T-04
Operationalization of Strategic goals into SMART goals

Operationalization of Goals into measurable Objectives
Institutional Aspects So that's how we translate from a higher level to the lower level, to make it also possible to work with it T-05 Circularity, Sustainability and Climate Adaptation Goals are defined independently from each other

Identification of interdependencies between Sustainability Dimensions
Institutional Aspects Circularity, climate adaptation and sustainability are three goals, not one goal and every part has its own explanation and not working together yet T-06 Need to work on a combined agenda (Sustainability + Circularity + Climate Adaptation) Coordination of objectives for integrative Urban Planning Improvement Opportunities I want to combine these three to show everybody that if you want to really achieve something you need to work on these three together and not separated, they are linked together T-07 Functional units have separated budgets

Factors influencing Collaboration among functional Units
Institutional Aspects It is the separation of the budgets, where the money is coming from, that's a difficulty T-08 Prioritization of flood and drought resilience.

Municipality Concerns
Climate adaptation is high goal now, because of the lack of water in the summer time, or too much water in one time

T-09
Prioritization of managing the Heat Island Effect.

Municipality Concerns
The Heat stress is a big one

T-15
Innovative projects are allowed to steer the City goals definition and updating process Project-led improvement of long-term Goals

Institutional Aspects
These projects make that the city council think about the goals and redirect the goals that they now have. These projects are front-runners T- 16 Reducing Risk-adverse and conservative mentality can boost change pace and innovation.

Improvement Opportunities
Why don't we turn on the nudge a little bit higher? We can achieve so much more than we now do. We are so scary about innovation, or contracting and everything has to be carefully weighted T- 17 Need to avoid unresponsiveness to change demands

Attitudes influencing change and innovation adoption Improvement Opportunities
Doing nothing is also a risk. Cause everything stays the same

T-18
Promotion of personal responsibility as a driver for change Leadership Improvement Opportunities You need to take the responsibility yourself

T-19
Enhance Biodiversity in Apeldoorn

Municipality Concerns
We want to be climate adaptive in Apeldoorn, I was part on building that strategy on my former role. It is now more diverse, including managing heat in cities and biodiversity T-20 Heat Island Effect Management Climate Adaptation and Resilience

Municipality Concerns
We want to enhance biodiversity in our town T- 21 Water Management through soft structures Climate Adaptation and Resilience

Municipality Concerns
So, the strategy is to build more green areas in our city, that enhances both heat adaptation and biodiversity, and also helps with water management T-22 Enhancing high quality greenery for city promotion as good living place Economic Prosperity and City Marketing

Municipality Concerns
The city is well, quite green, so compared to other cities is not that big of a problem. But we want to enhance that aspect of our city, to promote our city as being a nice city to live in T- 23 Supply of housing spaces at lower prices than in the Randstad area Social Equity and Affordability

Municipality Concerns
We want to be the next city, for nice living, outside the Randstad

T-24
Climate Adaptation and Sustainability as marketing drivers Economic Prosperity and City Marketing

Municipality Concerns
So that's why we have those goals about climate adaptation and sustainability.

T-25
Asset Management is done through monetary-based analysis The social cohesion in the neighbourhood, yes how do you measure it?

T-74
Need to achieve financial coordination to allow Circularity, Sustainability and Climate adaptation to be included in project definition Need for Financial Integration Improvement Opportunities But it cannot remain only as a strategy, or a plan, but they need to arrange everything (including financial aspects), to achieve change and actually realize the plans

T-75
Need to adapt the public space to future climate problems Climate Adaptation and Resilience

Municipality Concerns
The biggest part in public space is to adapt space to future climate problems, because climate is changing T-76 Importance of flood and drought resilience.

Municipality Concerns
Risks for flooding, more rain etc. Also, for more dry periods and urban heating T-77 Importance of managing the Heat Island Effect.

Municipality Concerns
Risks for flooding, more rain etc. Also, for more dry periods and urban heating

T-78
Longer life-span of clay materials as replacement for concrete products

Municipality Concerns
We know that good clay and bricks they can be more than 100 years old because they stay better T-79 Local production of clay products for replacing concrete ones

Institutional Aspects
A design that involves circular thinking, so we try to introduce circular thinking in the redesigning of this area

T-85
Change of heating systems for innovative ideas (Heat from surface water?) Renewable Energy sourcing

Municipality Concerns
The way we want to connect these two is that we think that we can use surface water for heating. The energy in surface water, the surface water is in average 10 degrees or something, so you can take some heat out of the water T-86 Built environment adaptation projects are coordinated with built environment maintenance activities Factors influencing Collaboration among functional Units

Institutional Aspects
We not only do this heating system, but we also change public space, because we are already thinking about renewing the public space, redesigning.

T-87
Managing and dealing with people's expectations and reluctancy to change Participative Governance and Engagement

Municipality Concerns
Yes, that's quite complex, because it's not only an engineering thing but it is also social, mental social thing T-88 No standardised circularity inclusion criteria are defined for project definition processes Degree of Consistency in inclusion of Sustainability Objectives in Project Scope.

Institutional Aspects
There is not a system to ensure that they make a circular redesigning of it, we only hope that they are trying to include circular thinking in the design. But there is not a system that makes it sure T-89 Pilot projects (like City Loops) are used as trial and error tests for Knowledge generation Organizational learning Strategies

Institutional Aspects
But this City loops project will help us to make it more a part of engineering and including a normal part of engineering. So, it's trial and error.

T-90
Lack of Systematically Integrated Collaboration Processes

Factors influencing Collaboration among functional Units
Institutional Aspects There is interaction, but it is not systematically integrated. It is more about people who understand each other, because they know what you want to reach T-91 Parks and areas specific for given age groups

Municipality Concerns
You can try to make places specific for these group of youngsters, where they can do their things, then you are also social T-92 Urban redevelopment should consider the provision of different services for the community

Municipality Concerns
So, when you are redesigning an area you also need to think about services, you have to think about which pays, about social systems, about economical services, health services and the services are economical of importance