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The transition to a circular economy in the built environment is key to achieving a resource-effective society. The built environment can be made more circular by applying circular building components. The purpose of this paper is to present a design tool that can support industry in developing circular building components.

The tool was developed and tested in five steps. In Step 1, the authors analysed existing circular design frameworks to identify gaps and develop requirements for the design tool (Step 2). In Step 3, the authors derived circular design parameters and options from existing frameworks. In Step 4, the authors combined and specified these to develop the “circular building components generator” (CBC-generator). In Step 5, the CBC-generator was applied in the development of an exemplary component: the circular kitchen and tested in a student workshop.

The CBC-generator is a three-tiered design tool, consisting of a technical, industrial and business model generator. These generators are “parameter based”; they consist of a parameter-option matrix and design canvasses. Different variants for circular components can be synthesised by filling the canvasses through systematically “mixing and matching” design options.

The developed tool does not yet support establishing causal links between “parameter-options” and identification of the most circular design variant.

The CBC-generator provides an important step to support the building industry in developing and implementing circular building components in the built environment.

Whilst existing tools and frameworks are not comprehensive, nor specifically developed for designing circular building components, the CBC-generator successfully supports the integral design of circular building components. First, it provides all the design parameters which should be considered; second, it provides extensive design options per parameter; and third, it supports systematic synthesis of design options to a cohesive and comprehensive circular design.

The purpose of this paper is to discuss how organisational complexities influence the design of circular business models, which have recently been introduced as a new panacea for aligning the interests of business with the needs of the environment.

The Service Shirt, a new garment concept, is used as an illustrative case example for demonstrating some of the organisational complexities of making circular business models operable. The shirt was developed through a series of design workshops for the fashion brand Fashion Alpha.

The analysis highlights multiple challenges emerging when a fashion product with a significantly extended lifecycle passes through different users, organisations and business models. It is concluded that it is difficult to talk about a circular business model (singular) as circular economy solutions depend on the contributions of multiple stakeholders with business models.

The findings illustrate how fashion companies interested in the circular economy fundamentally have to rethink conventional approaches to value, organisational boundaries and temporality.

Drawing on a case example from the fashion industry, the paper demonstrates the organisational complexities linked to the design of new business models based on circular economy thinking, as these require the coordination of actions between autonomous actors driven by different logics regarding value creation, value delivery and value capture.

Although product design is a fundamental element in the transition towards the circular economy, the knowledge of practices, methods and tools oriented to circular product design has not been widely developed. This study aims to contribute to the circular economy research area by investigating and analyzing the main design approaches to circular products and their relationship to new product development.

The authors conducted a systematic review and qualitative analysis of 120 articles. In these studies, the authors analyzed aspects such as design strategies used, the barriers to the adoption of circular product design and the relationships between the phases of new product development processes with circular product design studies.

The findings revealed that the circular product design approach has added new design strategies to those already recommended by ecodesign, such as multiple use cycles, emotional durability and biomimicry. Furthermore, the results showed that most circular product design articles focus on the planning and concept development phases of the new product development process.

In this article, the authors systematized the findings of an emergent research area: the development of new products for the circular economy. Its main contributions lie in the identification of design strategies, the classification of Design for X approaches, analysis of such approaches during the new product development process and discussion of their main barriers. Finally, this study presents contributions for managers and designers who are starting the transition to a circular strategy.

This study evaluates the architectural status of circular prototype mosques in Kuwait. The argument is that the once dominant and powerful image of mosques is now merely a repetitive reproduction through the prototype scheme. The study focuses on the circular prototype design, which has been constructed in many of Kuwait's recent residential areas. It evaluates qualitatively the worshipers' experiences of these mosques.

The research methodology is qualitative. The main question is how well the circular prototype mosques are received by worshipers and local communities. Various research methods were used, including walk-through survey and group interview with worshipers and semi-structured interview with key informants in Public Authority for Housing Welfare and Ministry of Awqaf and Islamic Affairs. Purposive sampling was chosen to select for key informants. Time-location sampling was selected for worshipers' group interview.

Circular prototype presents several weaknesses. The community did not receive the circular design well as it deviates from the traditional and modern rectangular mosque design prevalent in Kuwait. This research highlights the importance of considering traditional design principles, community preferences and functional requirements while designing a mosque. It also emphasizes the need for an extensive evaluation of prototype designs to identify potential weaknesses before proceeding with the final design.

It is recommended that future mosque design projects in Kuwait consider traditional design principles; community preferences; and financial, functional and sustainability requirements. In addition, the findings of this study can be used to inform future mosque design projects in Kuwait and to ensure that they are functional, cost-effective and well received by the community.

This research provides an informative and comprehensive analysis of Kuwait's prototype mosque designs from the 1950s to the present day. It focuses on the current circular prototype, critically examining its advantages and disadvantages. This research is the first to evaluate the history and design improvements over the years. As such, this research offers invaluable information to those interested in Kuwait's religious architecture and cultural history.

Australians consume twice the global average of textiles and are deeply engaged in a linear take/make/waste fashion model. Furthermore the Australian fashion sector has some unique supply chain complications of geographical distances, sparse population and fragmentation in processing and manufacturing. This research aims to examine how Australian fashion small to medium enterprises (SMEs) are overcoming these challenges to run fashion businesses built around core principles of product stewardship (PS) and circularity.

SMEs make up 88% of the Australian apparel manufacturing sector. This qualitative exploratory study included in-depth interviews with three Australian fashion SMEs engaged in circular design practice, and a focus group of 10 Western Australian fashion advocates of sustainability. Analytic coding and analysis of the data developed eight distinct themes.

This study examines the barriers to circular economy (CE) that exist in the Australian fashion sector, and maps the practice of Australian SMEs with circular business models in overcoming these barriers. In CE innovation, Australian SMEs may have an advantage over larger fashion companies with more unwieldy structures. Employing design-thinking strategies, Australian SMEs with a foundation of PS and circular purpose are creating new systems of viable closed-loop business models and design processes.

The themes from this research contribute to the limited literature on circular innovation examples that link CE theory with practice in the fashion sector. The model for circularity maps the practice of three SMEs built around core principles of PS and circularity in overcoming the barriers to CE in an Australian context, and may be used as a visual tool in education and understanding.

Fashion/textile small- to medium-sized enterprises (SMEs) are currently adding value to previously discarded textile waste by applying practical skills, knowledge and expertise to rework and reuse this material. As a result, sustainable design strategies such as zero-waste pattern-cutting, design for disassembly and upcycling are beginning to emerge. However, the scope for redesign will always be limited and the complete lifecycle of the material used needs to be considered at the front-end of the innovation process, to optimise material lifespans and reduce consumer waste. Further work is also required to inspire and educate the next generation of designers to the creative potential of reuse, and help the industry to understand its viability, scalability and role in the future. This chapter explores how the principals of the circular economy might support business model innovation within fashion and textiles. To this end, an exploratory canvas tool for SMEs, ‘Circular by Design’, was devised to aid SMEs to embrace closed-loop systems and to identify the most appropriate sustainable design strategies for their business.

The purpose of this paper is to investigate the managerial practices that companies can implement in order to design a circular economy business model and how companies can create and capture value from a circular economy business model.

The paper adopts a single case study methodology with semi-structured interviews and company, supplier, and manufacturing site visits, conducted in a small-to-medium-size Italian company operating in the office supply industry.

The theoretical setting maps a set of managerial practices for a circular economy business model and sets the research gaps and questions in a research framework designed along three main dimensions: value network, customer value proposition and interface, and managerial commitment. Then, through an empirical analysis, the findings reveal that the proposed dimensions are interdependent and reinforce each other. Moreover, the managerial commitment as moderating factor between the value network and the customer value proposition and interface dimensions is identified as essential for reaching the intended goals of circular economy business models.

This study maximizes the depth of the phenomenon under investigation by leveraging a single case study methodology, which ideally helps in a theory-testing approach as in the present case. Future research opportunities could be found in qualitative and quantitative studies to increase the generalizability of the findings of this paper.

The paper presents a set of relevant managerial practices for circular economy business models that can be used by managers who have the will to embrace in practice circular economy principles to support the design, change, or upgrade of the business model of companies within which they operate.

An interdisciplinary approach that integrates the research streams of circular economy, social psychology, organizational behavior, and business model design has been pursued to test the theoretical setting and the research framework for circular economy business models in a real-world context.

Circular construction offers sustainable solutions and opportunities to disentangle a project’s life cycle, including demolition, deconstruction and repurposing of architectural, civil engineering and infrastructure projects from the extraction of natural resources and their wasteful usage. However, it introduces additional layers of novel risks and uncertainties in the delivery of projects. The purpose of this study is to review the relevant literature to discover, classify and theorize the critical risk factors for circular construction projects.

The paper conducted a systematic literature review to investigate the risks of circular construction projects. It deployed a multistage approach, including literature search and assessment, metadata extraction, citation frequency analysis, Pareto analysis and total interpretive structural modeling.

Sixty-eight critical risk factors were identified and categorized into nine broad taxonomies: material risks, organizational risks, supply chain risks, technological risks, financial risks, design risks, health and safety risks, regulatory risks and stakeholder risks. Using the Pareto analysis, a conceptual map of 47 key critical risk factors was generated for circular construction projects. A hierarchical model was further developed to hypothesize the multiple possible connections and interdependencies of the taxonomies, leading to chain reactions and push effects of the key risks impacting circular construction projects.

This study constitutes the first systematic review of the literature, consolidating and theorizing the chain reactions of the critical risk factors for circular construction projects. Thus, it provides a better understanding of risks in circular construction projects.

This paper aims to present key characteristics of educational design briefs for the circular economy (CE) through the analysis of 11 design briefs focussing on real-life challenges related to sustainability and the CE, developed with collaborating industry partners for four consecutive circular design internships conducted in Ireland, Catalunya, The Netherlands and Sweden.

These four internships were conducted between September 2017 and June 2019 and each internship lasted three to four months. The supervisors for each internship collaborated with local industry partners genuinely interested in adopting sustainable business practices to develop design briefs focussing on real-life challenges they face. The briefs for each internship were developed further according to the feedback of the interns, industry partners and supervisors of previous internships.

Five steps of brief making for circular design were identified as reviewing the existing resources, emphasizing the importance of systems thinking, emphasizing the importance of collaboration for the CE, focussing on circularity and communicating expectations. The paper outlines how design briefs changed throughout the consecutive internships according to the different curricula and the characteristics of an educational circular design brief.

For design educators and researchers, the value of this paper lies in presenting the steps for the brief making of educational circular design projects. Additionally, the characteristics of circular design briefs are outlined, discussing their focus and content to act as a guide for design educators.

The organizational learning literature distinguishes different levels of learning (zero learning and single, double and triple loop learning) in order to understand the complexity and dynamics of changes in policies, objectives, mental maps, and structures and strategies for learning. This article explores the case of an emerging new organizational design, the circular organization, in order to understand the role of triple loop learning. The circular model was developed on the basis of ideas about the relationship between organizational structure and behavior taken from theories of dynamic systems. Circular design precepts appear to provide a structural facilitation of single and double loop learning. In this respect, the circular design tends to act as a facilitating infrastructure for triple loop learning, that is, exploring the structural opportunities and key competences people need to participate in making well‐informed choices about policies, objectives and other issues.