Digital transformation powered by Building Information Modeling (BIM) and Artificial Intelligence (AI) is reshaping renovation practices by addressing persistent challenges such as fragmented records, scheduling disruptions, regulatory delays, and inefficiencies in stakeholder coordination. This study explores the integration of these technologies through a case study of a Catholic church renovation (2022–2023) in Hong Kong, supplemented by insights from 10 comparable projects. The research proposes a practical framework for incorporating digital tools into renovation workflows that focuses on diagnosing challenges, defining objectives, selecting appropriate BIM/AI tools, designing an integrated system, and combining implementation, monitoring, and scaling into a cohesive iterative process. Key technologies include centralized BIM repositories, machine learning-based predictive analytics, Internet of Things (IoT) sensors, and robotic process automation (RPA). The findings show that these tools significantly improve data organization, proactive planning, regulatory compliance, stakeholder collaboration, and overall project efficiency. While qualitative in nature, this study offers globally relevant insights and actionable strategies for advancing digital transformation in renovation practices, with a focus on scalability, continuous improvement, and alignment with regulatory frameworks.

Purpose: The purpose of this study is to identify key performance indicators (KPIs) for badminton halls and, through a case study, illustrate how the facilities performance of a university badminton hall can be evaluated from the user perspective. Design/methodology/approach: After a desktop literature review, the findings were discussed by a focus group, and the discussion result formed the basis for establishing an analytic hierarchy of facilities performance for the badminton hall. Then, interviews were made with 169 badminton hall users to solicit their perceived facilities’ importance and performance levels of the hall. Using MATLAB, a computer program incorporated with an Analytic Hierarchy Process was devised to compute the importance weights of the performance attributes under assessment. The outcomes were interpreted using an importance-performance evaluation matrix. Findings: A facilities performance hierarchy, comprising nine KPIs, was established for the badminton hall. The factors influencing the users’ perceptions, the importance and performance levels of the KPIs and the areas of the hall requiring improvements were identified. Research limitations/implications: Future studies can take a similar approach of this study to develop KPIs and facilities performance hierarchies for other types of sports venues. Practical implications: The method used to identify the improvements required for the badminton hall can be applied to investigations on other sports facilities. Originality/value: The methodology of this research was first applied to study a badminton hall – as reported in this paper.

The rapid growth of Australia’s hydrogen economy highlights the pressing need for innovative regulatory strategies that address the distinct characteristics of hydrogen supply chains. This study focuses on the supply-side dynamics of the hydrogen energy sector, emphasizing the importance of tailored frameworks to ensure the safe, efficient, and reliable movement of hydrogen across the supply chain. Key areas of analysis include the regulatory challenges associated with various transportation and storage methods, particularly during long-distance transport and extended storage periods. The research identifies notable gaps and inconsistencies within the current regulatory systems across Australian states, which inhibit the development of a unified hydrogen economy. To address these challenges, the concept of Proactive Regulation for Hydrogen Supply (PRHS) is introduced. PRHS emphasizes anticipatory governance that adapts alongside technological advancements to effectively manage hydrogen transportation and storage. The study advocates for harmonizing fragmented state frameworks into a cohesive national regulatory system to support the sustainable and scalable expansion of hydrogen logistics. Furthermore, the paper examines the potential of blockchain technology to enhance safety, accountability, and traceability across the hydrogen supply chain, offering practical solutions to current regulatory and operational barriers.

Reducing building energy use, a linchpin of climate change mitigation, is a daunting challenge across the world. Gaining increasing attention, retro-commissioning (RCx) is a systematic process that can improve building energy performance. Using a techno-legal lens to review statutes and guides on RCx, this study reveals that in China, a national standard on building commissioning has taken effect yet RCx statutes are hitherto not found. The United States has RCx statutes enacted over 14 states; scrutinizing the statutes of five cities unveils similarities and differences in their scope of control and compliance requirements. In the absence of a specific RCx statute, the guide of Hong Kong, China provides detailed guidance for energy saving practices. While these findings can serve as reference for other places planning to formulate laws or guidance on RCx, the need to further study the effectiveness of mandating RCx for reducing building energy use is highlighted. A conceptual analysis of cost variation with statutory control, which could help policymakers consider from an economic perspective whether or to what extent statutory RCx requirements should be imposed, is also illustrated. This not only contributes insights to the pursuit of an optimal balance between statutory control and voluntary action for energy reduction but also adds to the debate on building energy policies.

This paper reports a comparative analysis of energy transition policies in Hong Kong, London, and Melbourne, highlighting their approaches to achieving carbon neutrality. Utilizing a qualitative research approach, the study combines desktop research and policy analysis to examine secondary data from academic literature and policy reports. A structured policy analysis was developed to compare the strategies of each city, focusing on legislative tools, regulatory mechanisms, and decarbonization goals. The findings reveal that, while all three cities aim to reduce greenhouse gas emissions through energy transition policies, they adopt different strategies shaped by their socio-economic contexts. Hong Kong emphasizes regulatory measures like the Buildings Energy Efficiency Ordinance, London uses market-based instruments such as carbon pricing, and Melbourne prioritizes community engagement and renewable energy integration. Despite progress, challenges remain, including compliance with standards, funding, and public awareness. Recommendations include developing benchmarking strategies, fostering public–private partnerships, and investing in education. This analysis provides actionable insights for future policy development, emphasizing adaptability and innovation in combating climate change and fostering sustainable urban environments.

This paper introduces the concept of sustainable transport and development partnership (STDP), a holistic approach integrating transit-oriented development (TOD), public–private partnership (PPP) and green building practices to address high carbon emissions from the building sector. Focusing on Hobart, Australia, the study explores the city’s urban context and potential for STDP implementation, proposing a comprehensive framework that incorporates green building practices across six key dimensions. Through in-depth interviews with PPP experts and on-site observations, the research identifies key transport challenges in Hobart, analyzes their interrelationship with potential STDP initiatives and proposes a set of STDP metrics to evaluate their efficacy. The findings contribute to the discourse on sustainable urban development, offering practical insights for policymakers, developers and researchers and providing a valuable reference for regional cities globally seeking to implement effective and sustainable STDP strategies, ultimately enhancing urban growth and reducing carbon emissions.