Circular Economy Implementation in the Australian Construction Industry: A SWOT-Oriented Content Analysis

Abstract

The construction sector plays a pivotal role in Australia; however, it is also a significant contributor to construction and demolition (C&D) waste generation. This dual impact underscores the urgent need to adopt more sustainable approaches, such as the circular economy (CE). This study aims to systematically examine CE implementation for C&D waste management in the Australian construction industry. A SWOT-oriented content analysis is conducted to identify key strengths, weaknesses, opportunities, and threats influencing CE adoption. An integrated qualitative and semi-quantitative approach is adopted, including frequency analysis, SWOT-based intensity measurement, and mechanism-based strategic interaction analysis. The results identify nine strengths, twelve weaknesses, nine opportunities, and fourteen threats. Key strengths include resource efficiency, waste reduction, and technological innovation, while major barriers include limited industry awareness, high initial costs, and policy constraints. Despite external challenges such as regulatory barriers and conservative industry culture, emerging opportunities from policy development, market demand, and sustainability imperatives support CE advancement. Accordingly, ten targeted strategies are recommended, such as voluntary CE certification and recognition schemes, capacity-building measures, policy improvements, and aggressive strategies leveraging dominant strengths. Overall, the study provides a comprehensive and systematic framework to support effective CE implementation, offering practical and policy-relevant insights for advancing sustainable construction.

1. Introduction

Australia has experienced an unprecedented level of construction activity driven by rapid population growth and sustained economic expansion. While this growth has delivered substantial socio-economic benefits, it has also resulted in excessive resource consumption and significant waste generation, rendering environmental sustainability a critical concern for the construction sector [1]. In particular, the construction industry is a major contributor to resource depletion and waste production, accounting for a considerable proportion of the solid waste generated annually in Australia [2]. For instance, during 2018–2019, approximately 27 million tons of construction and demolition (C&D) waste were generated nationwide [3]. Therefore, these facts underscore the urgent need for holistic and effective waste management systems capable of diverting substantial volumes of waste from landfills and improving resource efficiency across the construction sector [4].

Despite ongoing efforts, existing waste management systems have been widely criticised for their limited effectiveness in managing C&D waste [5]. More critically, these systems have failed to facilitate a transition towards a circular economy (CE), continuing to reinforce the traditional linear “take–make–waste” model, despite the CE being a regenerative economic system aimed at decoupling economic growth from the consumption of finite resources [6]. Fundamentally, the CE shifts the perception of waste from an inevitable by-product to a potential source of value, thereby offering a transformative pathway for resource-intensive industries such as construction, where improved resource efficiency and waste minimisation can deliver substantial environmental and economic benefits [7]. Therefore, by prioritising material reuse, remanufacturing, and recycling, the CE framework reduces both environmental and economic burdens associated with waste management, including costs related to landfill maintenance, virgin material extraction, landfill levies, transportation, and illegal dumping.

Globally, the importance of embedding CE principles into national policies and industry practices has gained increasing recognition. Several countries have introduced comprehensive legislative and regulatory frameworks to support this transition, including China’s Circular Economy Promotion Law and Japan’s Law for the Promotion of Efficient Utilisation of Resources [8]. Similarly, the European Union has integrated CE principles into multiple directives and action plans, emphasising waste reduction, material recovery, and resource efficiency across key sectors [9]. In Australia, policy initiatives such as the New South Wales Waste and Sustainable Materials Strategy 2041 signal a long-term commitment to waste reduction and sustainable material management, with explicit goals to transition towards CE over the next two decades [10].

Given its role as one of the largest consumers of materials and generators of waste, the construction industry is widely recognised as a critical sector for CE implementation. Previous studies have argued that a deeper understanding of both the benefits and challenges associated with adopting CE principles can inform evidence-based policy development and contribute to addressing persistent sustainability issues within the construction industry [11]. However, despite growing academic interest, there remains a limited body of research that systematically evaluates the stakeholders’ perceptions of CE implementation in the construction sector using comprehensive strategic assessment tools [12]. In particular, the application of SWOT (strengths, weaknesses, opportunities, and threats) analysis remains underexplored in the Australian construction context.

SWOT analysis originates from the field of business management and has become one of the most widely adopted tools for strategic evaluation across disciplines [13]. For example, ref. [14] applied SWOT to conduct a comparative analysis of medical tourism destinations, while [15] demonstrated its suitability for promoting prefabrication implementation in rural areas. Similarly, ref. [16] proposed strategic actions and a research agenda for organic solid waste management based on SWOT analysis. In the construction context [17], assessed key strategies affecting CE adoption in the small and medium-sized enterprises (SMEs), emphasising SWOT’s role in strategic decision making. These studies illustrate the versatility and effectiveness of SWOT analysis in formulating comprehensive improvement measures tailored to specific strategic challenges. Furthermore, unlike PESTEL, which focuses primarily on external factors, SWOT analysis offers the advantage of identifying and addressing both internal and external factors that may promote or inhibit the achievement of organizational or project objectives [18]. It is also an essential instrument for transforming fragmented qualitative findings into a structured format that supports strategic decision making and policy formulation [15]. Therefore, SWOT analysis represents a comprehensive, reliable, and context-specific approach for developing capacity-building strategies in relation to CE implementation [17].

By leveraging strengths, addressing weaknesses, capitalizing on opportunities, and mitigating threats, SWOT analysis provides a structured framework for preparing the construction industry to implement CE principles proactively [19]. However, SWOT analysis has frequently been applied in a descriptive manner, lacking quantitative rigour and limiting its effectiveness for strategic decision making. In addition, existing CE studies in the construction sector have mainly focused on fragmented dimensions, such as technological innovation or policy development, while limited attention has been given to integrated strategic evaluation frameworks, particularly in the Australian context. To address these limitations, this study develops an enhanced SWOT-based framework integrating literature-based SWOT coding, quantitative intensity analysis, and strategic roadmap development. The novelty of this study lies in the integration of these approaches within the specific context of CE implementation in the Australian construction industry. Unlike conventional descriptive SWOT applications, the proposed approach enables the prioritisation of SWOT dimensions and the systematic linkage between identified factors and CE implementation strategies. Therefore, this study provides a more analytically rigorous and context-specific framework for evaluating CE implementation in the Australian construction industry.

2. Literature Review

2.1. Circular Economy

CE represents a systemic transformation of the “take–make–dispose” model by reconfiguring production and consumption systems towards restorative and regenerative resource flows [20]. Grounded in regenerative design principles, the CE seeks to decouple economic growth from the extraction of finite natural resources by retaining the value of materials, products, and components within closed-loop systems for as long as possible [9]. This transition operates across micro (firm), meso (industrial symbiosis), and macro (regional and national) levels, substituting the conventional end-of-life paradigm with restorative strategies such as redesign, reduction, reuse, repair, refurbishment, remanufacturing, and recycling [21]. Central to this framework are the 3R principles—reduce, reuse, and recycle—which underpin global waste governance structures and serve as operational mechanisms for material circularity [9]. In summary, by closing material loops and enhancing resource productivity, the CE not only mitigates environmental burdens such as waste generation and greenhouse gas emissions but also stimulates innovation, competitiveness, and long-term economic resilience. Accordingly, the CE reframes waste from an externality of growth into a strategic resource, positioning circularity as a core pathway towards sustainable production and consumption systems.

The transition towards circularity has increasingly been institutionalised through policy and regulatory frameworks worldwide, reflecting a growing recognition of its role in addressing climate change, resource scarcity, and environmental degradation. Japan’s legal framework for a recycling-based society and China’s Circular Economy Promotion Law illustrate early legislative commitments to systemic circular transformation, further reinforced through strategic action plans and national development agendas [8]. Similarly, the European Union’s Circular Economy Action Plan integrates circularity into broader sustainability and industrial strategies, emphasising product lifespan extension, waste prevention, and resource efficiency [9]. In Australia, initiatives such as the New South Wales Waste and Sustainable Materials Strategy 2041 signal an emerging alignment with global circular agendas, aiming to improve recycling performance and sustainable material management [10]. Despite these policy advancements, translating CE principles into practice remains particularly challenging in resource-intensive sectors such as construction [7].

2.2. Circular Economy in Construction

The construction industry is widely recognised as one of the most resource-intensive sectors globally, characterised by high material throughput, fragmented supply chains, and substantial waste generation [7]. Construction and demolition (C&D) waste represents a major component of global waste streams due to the large volumes generated throughout building and infrastructure lifecycles. Typical C&D waste includes concrete, asphalt, bricks, ceramics, roof tiles, rocks, topsoil, mixed concrete, and both clean and contaminated fill, as well as mixed and separated demolition and construction materials [22]. Historically, most of these materials have been managed through a linear economic model focused on disposal rather than resource recovery. This “extract–produce–use–dispose” paradigm has increasingly been criticised as unsustainable due to its heavy reliance on virgin material extraction and its contribution to landfill accumulation and environmental degradation [23]. Moreover, traditional C&D waste management systems in many countries face persistent structural challenges, including weak leadership, limited recycling infrastructure, resource constraints, and insufficient integration of waste management within project management processes [24]. These limitations have prompted increasing attention toward alternative economic models capable of improving resource efficiency within the construction sector.

In response, CE has emerged as a promising framework for transforming resource use and waste management in the construction sector. Unlike linear production models, CE emphasises resource efficiency through strategies such as reuse, remanufacturing, recycling, and lifecycle optimisation, thereby promoting closed-loop material flows. Achieving circularity in construction requires systemic changes across multiple stages of the building lifecycle, including procurement systems, building design, material selection, construction processes, and end-of-life recovery strategies. Previous studies highlight that circular-oriented design approaches—such as passive design optimisation, high-performance building envelopes, and the integration of phase-changing materials—can significantly reduce operational energy consumption and associated emissions, contributing to net-zero energy building (NZEB) objectives [25,26]. Particularly, effective CE implementation requires coordinated collaboration among stakeholders, innovative business models, and supportive regulatory frameworks capable of addressing technological, institutional, and market barriers.

The construction sector also presents substantial opportunities for CE innovation due to its scale of resource consumption and waste generation. Researchers increasingly identify construction as a priority domain for CE implementation, given its potential to deliver significant environmental and economic benefits [1]. Technological innovations such as design for manufacture and assembly (DfMA) and three-dimensional (3D) concrete printing demonstrate the capacity to significantly reduce material waste while improving construction efficiency. For instance, 3D concrete printing enables the use of low-energy materials with higher proportions of recycled content, thereby supporting more sustainable material cycles in the construction process [27]. The integration of CE principles into these technological innovations enables a high landfill diversion rate of up to 90%, as highlighted in circular materials strategies (e.g., City of Sydney 2025–2035), effectively transforming C&D waste into valuable resources. Despite these technological advances, significant economic and institutional barriers remain in the CE implementation of the construction sector.

Although the potential benefits of CE in construction are widely acknowledged, the sector has been relatively slow to adopt circular practices compared with other industries [2]. Previous studies (such as [23,28]) identified that the transition toward circular construction is hindered by regulatory constraints, high transportation costs for recycled materials, limited government incentives, and a general lack of prioritisation of CE strategies within industry practices. Moreover, existing research has primarily focused on isolated strategies—such as recycling technologies or design optimisation—without sufficiently addressing the systemic interactions among policy frameworks, market mechanisms, supply chain structures, and technological innovation. In addition, much of the empirical literature has concentrated on European or East Asian contexts, leaving limited systematic strategic analysis of the institutional and industry conditions influencing CE adoption in Australia. Given the distinctive regulatory environment, market structures, and waste generation patterns within the Australian construction sector, a comprehensive and context-specific evaluation of the strengths, weaknesses, opportunities, and threats associated with CE implementation is investigated to inform evidence-based policy development and industry transformation in this study.

Based on the systematic literature review of CE studies [29], research methods in the CE field mainly include quantitative approaches, such as surveys, modelling, experiments, and simulation studies; qualitative approaches, such as case studies; mixed methods combining quantitative and qualitative analyses; and conceptual or descriptive analyses. Recently, as a qualitative strategic tool, SWOT analysis has increasingly been applied to support CE implementation in the construction sector. For example, in 2026, ref. [17] employed literature-based SWOT analysis combined with semi-structured interviews and questionnaire surveys to assess capacity-building strategies for CE implementation in construction SMEs, while [30] adopted a SWOT-AHP approach to evaluate CE implementation in the Iranian construction industry. However, existing SWOT-based CE studies have mainly focused on descriptive factor identification or ranking analysis, with limited attention given to the systematic integration of quantitative evaluation and strategic implementation mapping, particularly in the Australian construction context. Compared with qualitative strategic analysis approaches, such as the TOWS matrix, quantitative SWOT analysis provides a clearer and more systematic evaluation of the relative influence and importance of identified SWOT factors. Therefore, the novelty of this study lies in integrating literature-based SWOT coding, factor-intensity quantification, and strategic roadmap development to provide a more structured, analytically rigorous evaluation framework for CE implementation in the Australian construction industry.

3. Research Methodology

The overall research framework is illustrated in Figure 1. This study employs a systematic literature review (SLR) to comprehensively identify existing knowledge and extract relevant factors influencing CE implementation. Then, a SWOT-oriented content analysis is conducted to systematically classify the identified factors into strengths, weaknesses, opportunities, and threats, followed by frequency analysis of these factors. To further enhance analytical rigour, S–O–W and S–O–T analyses, together with SWOT-based intensity measurement, are employed for strategic assessment. Accordingly, these analyses enable the development of targeted, evidence-based recommendations to facilitate CE implementation in the Australian construction industry.

3.1. Systematic Literature Review

SLR was conducted following a structured and transparent protocol to ensure the rigour, reproducibility, and comprehensiveness of the study. The primary objective of the SLR was to identify and synthesise scholarly evidence on C&D waste management within the Australian context, with a particular focus on factors influencing CE implementation. Similar to prior studies [29,30,31], the Scopus database was utilised to ensure comprehensive and reliable coverage of the peer-reviewed literature. Previous studies have identified the Scopus generally can provide more research results by comparing other database such as WoS [30,31]. In this study, Scopus was selected owing to its extensive indexing of high-quality academic journals and its widespread application in systematic literature review studies [31].

The search was performed across the title, abstract, and keywords fields using Boolean combinations of the following terms: (“circular economy” OR “construction waste” OR “demolition waste” OR “waste management”) AND “Australia” AND “Construction”. The search was restricted to publications from 2016 to 2025 to capture recent developments and the accelerating scholarly attention in this domain. Only English-language journal articles were included to ensure academic quality and consistency. To maintain a focus on original empirical and analytical studies, only journal articles were included, excluding review articles, conference papers, book chapters, and other forms of publication.

The study selection process was conducted in multiple stages. First, all retrieved articles were screened based on titles and abstracts to assess their relevance to C&D waste management in the Australian built environment. Second, content screening was undertaken to evaluate their research results where the studies contributed to identifying factors related to strengths, weaknesses, opportunities, and threats associated with CE implementation. During this stage, irrelevant studies and those from which no factors could be identified were removed. Following the content review, a total of 54 articles were retained. These selected studies constitute a robust evidence base for the subsequent SWOT-oriented content analysis.

3.2. SWOT-Oriented Content Analysis

To systematically investigate the multifaceted factors influencing CE implementation within the Australian construction industry, this study adopts a SWOT-oriented content analysis approach. This approach enables the structured identification, coding, and categorisation of qualitative evidence derived from author-stated interpretations in the selected studies into strengths, weaknesses, opportunities, and threats. By doing so, it ensures analytical consistency and thematic relevance across the reviewed literature.

To enhance methodological transparency and coding reliability, the selected articles were independently reviewed and coded by the authors through an iterative coding process. Any coding discrepancies were discussed and resolved through consensus to ensure consistency in factor classification. The coding procedure involved identifying textual points related to CE implementation, including identification, analysis, discussions, confirmation, and strategic implications, and subsequently categorising these data into the predefined SWOT categories. Specifically, four parent nodes—strengths, weaknesses, opportunities, and threats—were initially established based on the SWOT analytical framework. Strengths and weaknesses were defined as internal factors reflecting the existing capabilities and limitations associated with CE implementation, whereas opportunities and threats were defined as external environmental conditions influencing future CE development trajectories. For example, findings related to laws, regulations, and policies were generally classified as external opportunities or threats, whereas the lack of incentives for CE stakeholders was categorised as an internal weakness, as it primarily reflects limitations associated with stakeholder engagement and participation, despite being partially influenced by regulatory and policy contexts. More importantly, during the coding process, conceptually similar statements identified within a single study were treated as a single occurrence of one factor to minimise duplication and maintain a consistent level of analytical granularity. Notably, all identified SWOT factors were directly derived from the reviewed literature.

3.3. Quantitative Analysis of SWOT Factors for CE Improvements

Based on the identified SWOT factors, the mechanism-based analysis of strength–opportunity effects on weaknesses and threats, is conducted to evaluate SWOT factors influencing CE implementation, thereby informing the development of targeted recommendations for CE improvement. Moreover, to quantify the extent to which SWOT categories influence the implementation of CE practices, the intensity of these factors is assessed. This approach has been previously applied in SWOT-based analyses of prefabrication implementation to support the development of strategic recommendations [15]. Accordingly, the intensity indices for strengths ($I_S$), weaknesses ($I_W$), opportunities ($I_O$), and threats ($I_T$) are calculated as follows:

$$I_S= {\displaystyle \frac{{\sum }_i^{n_s}{f}_{S_i}}{{\sum }_i^{n_s}{f}_{S_i}+{\sum }_i^{n_W}{f}_{W_i}+{\sum }_i^{n_O}{f}_{O_i}+{\sum }_i^{n_T}{f}_{T_i}}}$$

(1)

$$I_W={\displaystyle \frac{{\sum }_i^{n_W}{f}_{W_i}}{{\sum }_i^{n_s}{f}_{S_i}+{\sum }_i^{n_W}{f}_{W_i}+{\sum }_i^{n_O}{f}_{O_i}+{\sum }_i^{n_T}{f}_{T_i}}}$$

(2)

$$I_O={\displaystyle \frac{{\sum }_i^{n_O}{f}_{O_i}}{{\sum }_i^{n_s}{f}_{S_i}+{\sum }_i^{n_W}{f}_{W_i}+{\sum }_i^{n_O}{f}_{O_i}+{\sum }_i^{n_T}{f}_{T_i}}}$$

(3)

$$I_T={\displaystyle \frac{{\sum }_i^{n_T}{f}_{T_i}}{{\sum }_i^{n_s}{f}_{S_i}+{\sum }_i^{n_W}{f}_{W_i}+{\sum }_i^{n_O}{f}_{O_i}+{\sum }_i^{n_T}{f}_{T_i}}}$$

(4)

where $n_s$, $n_W$, $n_O$, and $n_T$ denote the number of identified strength, weakness, opportunity, and threat factors, respectively. $f_{S_i}$, $f_{W_i}$, $f_{O_i}$, and $f_{T_i}$ denote the frequency of occurrence of the i-th factor of strength $S_i$, weakness $W_i$, opportunity $O_i$, and threat $T_i$ within each SWOT category, as derived from the identified literature, respectively. The frequency of each SWOT factor was calculated based on its occurrence across the reviewed literature. The intensity indices $I_S$, $I_W$, $I_O$, and $I_T$, computed using Equations (1)–(4), illustrate the relative importance of the SWOT categories and serve as a basis for strategy formulation. Higher intensity values of the indices indicate a greater influence on CE implementation based on the reviewed literature. According to the ranking of intensity values, the strategic implications can be developed for the most prominent category, such that pioneering strategies, reverse strategies, avoidant strategies, and aggressive strategies could be developed to the dominant category of opportunity, weakness, threat and strength, respectively. The analysis focuses on frequency-based ranking rather than threshold-based filtering.

4. Results

4.1. SWOT Factors of CE Implementation

The identified 54 articles are attached in the Appendix A. The results of the SWOT-oriented content analysis from these articles are summarised in

Table 1. SWOT factors influencing CE implementation.

Internal Conditions	External Conditions
Strengths	Opportunities
Environmental dimension	Regulatory dimension
S1. Enhanced resource and energy efficiency	O1. Continuous improvement of laws and regulations
S2. Reduced greenhouse gas emissions and environmental impacts	O2. Legal support and economic incentives for CE implementation
S3. Reduced reliance on virgin materials and resources	O3. Increased promotion and awareness of policies and practices
Technological dimension	Market dimension
S4. Advancement of C&D waste management technologies	O4. New market opportunities
S5. Availability of smart and sustainable solutions	O5. Development of industrial chain
S6. Constantly innovative practices in construction and CE adoption	O6. Long-term economic benefits
Economic dimension	Societal dimension
S7. Reduced current waste treatment costs	O7. Increased public and stakeholder participation
S8. Improved economic competitiveness	O8. Improved environmental education
S9. Increased employment opportunities	O9. Increasing societal concern regarding climate change
Weaknesses Material dimension W1. High difficulty in obtaining certain waste W2. Challenges in waste sorting and disposal W3. Potential quality degradation of reused construction materials Technological dimension W4. High costs of CE-related technologies W5. Limitations of existing technologies W6. Unstable supply chain Institutional dimension W7. Lack of incentives for CE stakeholders W8. Lack of specialised knowledge and technical expertise W9. Lack of harmonised industry standards and guidelines Economic dimension W10. High initial investment W11. Limited short-term economic returns W12. Low long-term profitability and high financial risks	Threats Institutional dimension T1. Incomplete and outdated regulations T2. Weak enforcement and monitoring of regulations T3. Conflict between international and national policies T4. Bureaucracy and complicated procedures T5. High regulatory costs Cultural dimension T6. Cultural conflicts T7. Social prejudice T8. Lack of public awareness T9. Conservative nature of the industry Structural dimension T10. Entrenched linear economy structure T11. Limited CE diffusion T12. Lack of immediate returns or unfamiliarity with new methods Economic dimension T13. High economic volatility T14. Market competition

, providing a comprehensive overview of the internal and external factors influencing CE adoption for the C&D waste management in the Australian construction industry. The content analysis identified nine strengths, twelve weaknesses, nine opportunities, and fourteen threats. This categorisation enables a structured understanding of the factors shaping CE implementation, offering a foundation for subsequent factor and strategic analysis.

From the strength viewpoint, the CE practices in the Australian construction sector are underpinned by a range of interrelated strengths spanning environmental, technological, and economic categories. Environmentally, CE facilitates the efficient utilisation of resources and significantly reduces the consumption of virgin materials. This transition contributes to improved energy efficiency, lower greenhouse gas emissions, and the mitigation of environmental pollution and ecological degradation. Technologically, CE could benefit to the construction sector from continuous innovation, with advanced C&D waste management techniques, a wide array of smart and sustainable technological options, and the effective integration of diverse construction technologies enhancing the feasibility and scalability of CE implementation. Economically, CE practices can reduce waste treatment costs while generating higher long-term economic returns and creating additional employment opportunities. In summary, these strengths not only support the economic benefits of CE principles but also facilitate broader industrial upgrading and the transition towards a more sustainable and smart construction industry in Australia.

Despite its strengths, the CE implementation practices is constrained by several inherent weaknesses across material, technological, institutional, and economic dimensions. From a material perspective, the availability of suitable secondary resources remains limited, and challenges associated with waste sorting and disposal persist, while the reuse of building materials may raise concerns regarding quality degradation and performance reliability. Technologically, although progress has been made, existing solutions still face limitations, and the adoption of advanced technologies is often hindered by high costs, technical complexity and unstable supply chain. Institutionally, the lack of robust policy incentives, insufficient specialised knowledge, and the absence of harmonised industry standards further impede the widespread uptake of CE practices. Economically, the sector is characterised by high upfront investment requirements, uncertain short-term returns, and relatively low profitability accompanied by elevated financial risks. Therefore, these weaknesses limit the scalability and efficiency of CE implementation, thereby slowing the transition towards a fully circular construction system in Australia.

The CE enhancement in the Australian construction sector is further supported by a range of advancing opportunities driven by regulatory, market, and societal developments. From a regulatory perspective, the continuous improvement of laws and regulations, coupled with stronger policy support and targeted economic incentives, provides a favourable governance framework for accelerating CE adoption. Enhanced dissemination and promotion of regulatory frameworks can also improve industry compliance and awareness. From a market viewpoint, CE opens up new market opportunities, stimulates the development of integrated industrial chains, and offers substantial long-term financial benefits despite initial investment barriers. At the societal level, increasing public participation and growing emphasis on environmental education contribute to greater acceptance and demand for sustainable construction practices. Furthermore, the escalating urgency of addressing global warming reinforces the strategic importance of CE as a pathway to reduce carbon emissions and enhance environmental performance. Accordingly, these opportunities create a conducive environment for promoting CE implementation and driving the transformation of the construction industry towards sustainability in Australia.

External threats also hinder the effective implementation of CE practices in the Australian construction sector. From an institutional perspective, incomplete and outdated regulations, weak enforcement mechanisms, conflicts between international and national policies, bureaucratic procedures, and high regulatory costs create uncertainty and constrain CE implementation. Culturally, social prejudice, cultural conflicts, limited public awareness, and the conservative nature of the construction industry reduce the acceptance and adoption of CE practices. Structurally, the persistence of entrenched linear economy models and the limited diffusion of CE principles across the sector continue to impede systemic transformation, while the lack of immediate financial returns and unfamiliarity with emerging CE methods discourage stakeholders from adopting innovative circular approaches. Economically, high market volatility and intensified market competition further increase financial uncertainty and investment risks associated with CE implementation. Consequently, these institutional, cultural, structural, and economic threats create a challenging external environment for the transition towards a CE in the built environment in Australia.

4.2. Frequency Analysis of the SWOT Factors

Figure 2 presents the frequency distribution of all identified SWOT factors derived from the 54 selected articles. A higher frequency indicates a stronger perceived influence on CE adoption. Factors with a frequency greater than 27—representing more than half of the reviewed studies—are considered critical in influencing the implementation of CE practices in the Australian construction sector. From the strength’s perspective, the environmental benefits of CE practices are consistently emphasised in the literature, particularly in terms of enhancing resource utilisation efficiency and energy efficiency, as well as reducing waste generation and greenhouse gas emissions. CE practices are also associated with reduced waste management costs and ongoing technological innovation, which can generate economic benefits in certain contexts. In contrast, from the weakness perspective, inefficient and costly waste sorting and disposal processes, together with the high costs of CE technologies, emerge as the most significant barriers. These financial constraints are closely linked to challenges in waste-management processes. This finding is consistent with prior studies (e.g., [25,32]), which identify high upfront costs as a major impediment to the adoption of sustainable practices and technologies. In terms of opportunities, key driving forces include increasing pressure from global climate change, emerging market opportunities, strengthening regulatory frameworks, and growing public participation. These factors collectively enhance the attractiveness and potential of CE implementation. In contrast to the relatively consistent findings across strengths, weaknesses, and opportunities, the threat dimension exhibits greater variability, with no universally agreed-upon factors across the literature. Different studies highlight a diverse range of external challenges. Notably, while the continuous improvement of laws and regulations is widely recognised as an opportunity, regulatory lag and difficulties in law enforcement are simultaneously identified as significant threats to CE implementation. This paradox underscores the complex and evolving institutional environment surrounding the transition towards a circular construction economy in Australia.

5. Discussion and Recommendations

5.1. SWOT-Based Strategic Implications for CE Implementation

The SWOT analysis is further extended to examine how strengths and opportunities can be strategically leveraged to address weaknesses and mitigate threats associated with CE implementation.

Table 2. Key strategic strengths and opportunities for addressing weaknesses.

Weakness	Strengths	Opportunities	Mechanism Logic
W1	S4, S5	O3, O5, O7, O8	Digital waste tracking + management + policy + education + participation + industrial chain coordination improve waste collection
W2	S4, S5	O2, O4, O8	Automation + policy + market + education improve source separation efficiency
W3	S5, S6	O1, O3	Innovations + standards + smart monitoring improve material certification and acceptance
W4	S6, S8	O2, O6	Innovation + incentives + long-term returns improve feasibility
W5	S6	O4, O9	Innovation pressure from market expansion drives R&D improvement
W6	S4, S5	O5	Integrated industrial chain + digital platforms stabilize flows
W7	(R1)	O1, O2	Regulatory reform + subsidies directly address policy gap
W8	(R2)	O7, O8	Innovation diffusion + education/training improve skills
W9	(R3)	O1, O3	Regulatory harmonisation + digital standards systems
W10	S7, S8	O2, O6	Cost savings + incentives + long-term returns
W11	S8	O4, O6	Market expansion + long-term economic justification
W12	S8	O6	Stable long-term CE market reduces risk perception

illustrates how key strengths and opportunities can be strategically utilised to address identified weaknesses. The findings indicate that a substantial proportion of the weaknesses can be mitigated through the effective mobilisation of existing strengths and opportunities. The mechanism logic is also illustrated to explain how strengths and opportunities are translated into pathways of addressing weaknesses. However, certain weaknesses persist and cannot be fully, thereby necessitating the development of targeted recommendations to further support CE adoption.

In Table 2, for W7 (lack of incentives for CE stakeholders), the first recommendation (R1) is to strengthen government subsidies and incentive mechanisms to improve the financial feasibility of CE technologies and approaches, which has also been presented in previous studies such as [33,34,35]. Short-term financial barriers can also be mitigated by adopting lifecycle cost–benefit analyses, securing external funding or green investment to offset upfront costs, and implementing CE practices in a phased manner to reduce immediate financial pressure. Regarding W8 (lack of specialised knowledge and technical expertise), the second recommendation (R2) is to prioritise CE capacity-building measures through awareness-raising and professional development initiatives [36,37]. This can be achieved by delivering structured education and training programs, developing knowledge-sharing platforms in collaboration with academic institutions, and promoting interdisciplinary project teams to integrate diverse expertise and facilitate knowledge transfer across the CE loop. Finally, for W9 (lack of harmonised industry standards and guidelines), the third recommendation (R3) is to introduce voluntary CE certification and recognition schemes, such as designating Circular Economy Benchmark Companies, to provide non-regulatory motivation for contractors. Australia does not currently mandate European-style CE certification schemes within the domestic market, although it has established several sustainability-related accreditation systems, including Climate Active certification for carbon neutrality across organisations, products, services, events, precincts, and buildings, as well as Product Stewardship Accreditation for recycling and waste reduction initiatives. In this context, voluntary CE certification and recognition schemes can create market-driven incentives by enhancing contractors’ reputational capital and signalling their commitment to sustainability to clients and stakeholders. Over time, the widespread adoption of such certifications can help establish industry benchmarks and indirectly encourage regulatory bodies to formalise CE-related standards and incentives. In summary, these recommendations complete the strengths and opportunities to overcome these CE weaknesses and generate additional driving forces to accelerate the adoption of CE practices in the construction industry.

Table 3. Key strategic strengths and opportunities for mitigating threats.

Threats	Strengths	Opportunities	Mechanism Logic
T1	S6	O1	Innovation + regulatory updates improve governance completeness
T2	S5	O1, O3	Digital monitoring + policy promotion improve compliance
T3	S2, S9	O1	Carbon reduction and job creation (SDGs) + regulatory harmonisation minimise conflicts
T4	S5	O1	Digitalisation reduces administrative burden
T5	(R4)	O2	Incentives offset compliance cost
T6	(R5)	O7, O8	Public participation + education improve acceptance
T7	S2, S9	O7, O8	Carbon reduction + job creation + awareness reduce resistance
T8	S2	O3, O8, O9	Environmental benefits + policy promotion + education + climate awareness
T9	(R6)	O7, O8	Innovation diffusion + stakeholder engagement
T10	S6, S7	O4, O5	Innovation + cost reduction + industrial chain development enable transition
T11	S6	O4, O5	Innovation + market expansion accelerate adoption
T12	S8	O2, O6	Long-term economic framing improves adoption logic
T13	S8	O2, O6	Efficiency + long-term benefits improve resilience
T14	S4, S8	O4, O6	Technologies + competitiveness + market expansion strengthen positioning

presents the key strategic strengths and opportunities that can mitigate threats in CE implementation, illustrating the underlying mechanism logic pathways. Most threats can be mitigated by taking advantage of these strengths and opportunities. However, in order to completely moderating these threats, three extra recommendations, including institutional, cultural and social strategies, are developed. For the T5 threat (high regulatory costs), the fourth recommendation (R4) is to streamline CE-relevant approval processes through regulatory harmonisation and digitalisation and reduce compliance burdens via fee reductions and fast-track pathways for CE projects. For example, ref. [34] argued that approval barriers stem from insufficient government support and leadership, together with a tendency to prioritise interim solutions. The use of cutting-edge technology, such as artificial intelligence (AI), can reduce approval cost and facilitate decision making [38]. Regarding T6 (cultural conflicts), the fifth recommendation (R5) is to develop cultural conflict mitigation strategies to accommodate the interests of diverse stakeholders. Survey evidence indicates that cultural cognition risks among project stakeholders remain a key barrier to effective C&D waste management in Australia [23]. Prior studies have identified several relevant strategies, including clear communication, the establishment of a waste reduction culture, the setting of waste reduction targets, contractual requirements, and training, education, and guidance. In addition, these strategies should emphasise inclusive decision-making processes involving multiple stakeholders, promote cross-cultural collaboration through workshops and communication platforms, and ensure that CE initiatives are adaptable to local cultural, institutional, and market contexts. Finally, to address T9 (the conservative nature of the industry), the sixth recommendation (R6) is to promote innovation and industry transformation to gradually develop a supportive organisational and social environment for CE adoption. The resistance to innovation and change within the building and construction sector is widely recognised in the literature [39]. This resistance is primarily attributed to entrenched traditional practices, unclear allocation of legal responsibilities among stakeholders, and insufficient training and capacity building. Accordingly, promotional strategies such as CE pilot projects, demonstration initiatives, incentives for early adopters, and the dissemination of best-practice case studies can help overcome the conservative nature of the construction industry and facilitate the systematic adoption of CE practices.

There are multiple weaknesses and threats associated with the financial and cost aspects of CE implementation, including W4, W10, W11, W12, T5, T12, and T13. Accordingly, to effectively promote CE adoption, the seventh recommendation (R7) is to improve access to capital for CE implementation by promoting sustainability-linked loans [11], fostering public–private partnerships to share financial risks [40], and enhancing investor awareness of the long-term economic and risk-reduction benefits associated with CE practices [41]. In summary, these seven recommendations support efforts to overcome institutional, cultural, and social barriers to CE implementation, thereby facilitating more effective adoption across diverse and heterogeneous contexts. It should be noted that the mechanism logic and recommendations presented in this study are intentionally simplified to enhance interpretability and strategic clarity, as CE implementation in the construction sector represents a complex socio-technical system in which financial, regulatory, and behavioural factors are highly interdependent and may mutually reinforce one another.

5.2. Intensity Analysis of SWOT Factors for CE Implementation Recommendations

Based on the intensity measurement of the SWOT factors in Equations (1)–(4), the factor intensity scores are illustrated in Figure 3. The strength, weakness, opportunity and threat dimensions demonstrate the intensity scores of 0.303, 0.257, 0.243 and 0.197, respectively, indicating that the strength dimension exhibits the highest intensity. SWOT dimensions with more identified and more frequently discussed factors in the reviewed studies exhibited higher intensity scores. These scores reflect the extent to which the respective factors have been emphasised in previous studies within the Australian context. Accordingly, aggressive strategies are recommended, focusing on maximising these strengths to promote CE implementation. By critically analysing and summarising all these strength factors, three key recommendations (R8, R9, R10) are proposed to operationalise these strategies.

R8. Prioritise environmental sustainability benefits. To maximise market acceptance and policy alignment, strengths related to resource and energy efficiency (S1), greenhouse gas emission reduction (S2), and mitigation of virgin materials and resources (S3) should be strategically aligned with the global sustainable development goals. The Australian construction sector needs to be a major focus in the transition towards a circular built environment, as CE can provide benefits across different stages of the built environment lifecycle through the potential reuse of materials, as well as design for disassembly and reuse, thereby contributing to the achievement of waste management, resource efficiency, and carbon emission reduction targets [10]. These environmental benefits should be translated into large-scale CE practices to effectively respond to increasing sustainability demands and regulatory pressures.

R9. Integrate smart technologies for resource optimisation. An aggressive strategy should prioritise accelerating innovation in smart technologies to enhance resource optimisation. The application of smart technologies can improve the consistency, transparency, and traceability of waste information, thereby facilitating the transition towards a circular economy in the C&DW sector [42]. This can be achieved by leveraging the advancement of C&D waste management technologies (S4), smart technological options (S5), and constantly innovative practices in construction and CE adoption (S6). The adoption of digital tools, such as Building Information Modelling (BIM) and Internet of Things (IoT)-enabled systems, alongside modern construction techniques, can significantly improve lifecycle performance and scale up CE implementation across projects. For instance, smart sensors can monitor the level of liquid waste, and particularly suit for smaller networks with only a few construction projects [43].

R10. Strengthen economic performance and employment capacity of CE practices. It is important to recognise the economic benefits of CE-enabled business models to ensure the effective implementation of CE measures [44]. This aggressive strategy focuses on leveraging reduced waste treatment costs (S7) to improve economic performance and industry competitiveness (S8) while creating new employment opportunities (S9) through the CE expansion practices and advanced C&D waste management technologies. The strategy also supports the development of stronger business cases for CE implementation, attracts investment, stimulates green job creation in recycling and resource recovery industries, and contributes to long-term economic and environmental sustainability.

In summary, a strategic mapping framework was developed to catalyse the transition toward CE by synthesising strength–opportunity–recommendation (S–O–R) drivers, as illustrated in Figure 4. At the foundational level, Learning, Training, and Cultural Transformation (Level 1) constitute the critical bedrock for fostering industry-wide capacity and embedding a sustainability-oriented mindset. Building on this base, the intermediate structural layers address key bottlenecks identified in the SWOT analysis—most notably regulatory fragmentation and financial constraints—by advancing Regulatory Excellence and Standardization (Level 2) and providing Financial Support and Economic Incentives (Level 3). At the apex, the Integration of Smart Technologies and Value-to-Waste Optimisation (Level 4) represents the operational maturity of CE implementation. Accordingly, this transition is driven by an integrated and systemic approach, wherein the coordinated reinforcement of policy, finance, technology, and human capital enables the construction industry to effectively “close the loop.” Such alignment facilitates the progression toward a sustainable built environment, ultimately achieving full-scale CE integration in which environmental restoration and economic resilience are mutually reinforcing.

6. Conclusions

The construction sector is a major driver of the Australian economy, yet it also represents a significant source of resource consumption and C&D waste. This study investigates the implementations of CE principles for C&D waste management in the Australian construction industry to support long-term sustainability. A SLR method of 54 recent publications was conducted to identify the key factors influencing CE adoption. Subsequently, a SWOT-oriented content analysis was employed to examine the strengths, weaknesses, opportunities, and threats associated with CE implementation. To enhance analytical rigour, multiple discussion steps were applied, including frequency analysis, mechanism-based analysis of strength–opportunity effects on weaknesses and threats, as well as intensity measurement across the four SWOT categories. Based on these analyses, a set of development-oriented recommendations was proposed to inform future practice and policy.

The findings reveal a comprehensive set of influencing factors, including nine strengths, twelve weaknesses, nine opportunities, and fourteen threats. Frequency analysis highlights the dominant perspectives among CE scholars and practitioners, confirming that CE offers substantial benefits such as improved resource efficiency, reduced material consumption, minimised waste generation, enhanced technological innovation, and the preservation of resource value. However, several critical barriers remain, including limited industry awareness, inadequate waste management practices, insufficient policy support, high initial investment and technological costs, and delayed economic returns. Despite external challenges—particularly policy and regulatory barriers and a conservative industry culture—emerging opportunities such as evolving regulatory frameworks, growing market demand, increasing public engagement, and global sustainability imperatives provide a supportive context for CE advancement in Australia. Building on the analytical results, this study develops targeted recommendations across internal and external dimensions. Based on mechanism-based analysis, seven strategical recommendations are proposed to promote CE implementation capacities: introducing voluntary CE certification and recognition schemes, prioritising CE capacity-building initiatives, enhancing government subsidies and incentive mechanisms, streamlining CE-related approval processes, addressing cultural and organisational resistance, promoting innovation-driven industry transformation, and improving access to financial resources. Furthermore, based on the intensity measurement results, an aggressive strategy is formulated to maximise the dominant strengths. This includes integrating smart technologies for resource optimisation, strengthening economic capacity through waste-to-value cycles, and prioritising environmental–social sustainability benefits to accelerate large-scale CE implementation.

This study contributes one of the earliest systematic analyses of SWOT factors influencing CE implementation for C&D waste management in the Australian context. It provides actionable insights for industry practitioners and policymakers to advance CE adoption in an innovative and efficient manner. In particular, the introduction of voluntary CE certification and recognition schemes is identified as a practical and scalable pathway. Although the study focuses on Australia, the identified factors and strategic recommendations offer broader implications for other countries seeking to enhance policy frameworks and promote CE practices. Nevertheless, this research is primarily based on literature-derived evidence obtained from the Scopus database, reflecting the perspectives presented in existing studies on the Australian construction industry, which represents a limitation of the study. For example, the measured intensity values indicate the relative prominence of factors within the reviewed literature rather than their direct causal importance in practice. Future research should incorporate empirical approaches, such as surveys, case studies, and expert interviews, to further validate and refine the findings. In addition, the effectiveness and applicability of the proposed CE strategies require empirical validation in real-world contexts, as the identified factors and developed strategies are primarily derived from the reviewed literature. Future studies should also further investigate how to achieve efficient and cost-effective waste sorting and disposal, as well as how to reduce the implementation costs of CE technologies, which remain significant barriers to CE adoption. Overall, the successful implementation of CE depends on the integrated advancement of environmental, economic, and social dimensions, highlighting substantial research potential in areas such as policy innovation, economic feasibility, life cycle assessment, technological advancement, and socio-cultural transformation.