Traditionally, construction and demolition waste (CDW) materials have been considered to be unwanted, surplus, or wastage materials or materials with zero value. Such a conceptualisation only embraces a negative aspect, which underpins the disposal of reusable and recyclable CDW materials in landfills, thus damaging the circular economy and the environment. The scope of this research was to conceptualise the circular economy potential of non-hazardous construction and demolition waste, which can be used as a resource for advancing the circular economy and sustainability in the built environment. Thus, the abbreviation ‘CEPCDR’ is used for this purpose. The study employs an integrative literature review to understand in depth whether the rationale in the existing CDW definitions advocates for the circular economy. Instead, the literature showed that the current definitions mainly support quantitative, economic, or classification needs, respectively. That is because they lack consideration of the dynamic nature of CDW materials, which embraces the spatial and temporal dimensions. The former involves the geographic context in which the CDW phenomenon eventuates, while the latter concerns the lifecycle of materials. This study contributes to the body of knowledge by conceptualising the CEPCDR using a holistic approach that includes five dimensions: the social, economic, environmental, spatial, and temporal perspectives. Furthermore, the study seeks to drive future research in measuring the CEPCDR.

Traditional project management applications are appeared working separately of their participating project teams and isolating the input of each team to both geometry and non-geometry of the project. With the introduction of Building Information Modelling (BIM), Architectural, Engineering and Construction (AEC) industry expected it would be a panacea as a tool to effectively collaborate project teams and to efficiently share geometry and non-geometry data relevant to not only design and construction but also covering the whole life-cycle of the project. All these BIM functions are relied on its automation capability; in other words, BIM vision totally discourages manual processing of data. As a result, good interoperability practice needs to pass data automatically between applications of different project teams. Many international associations are working in search of full interoperability among BIM players of the project; however, the goal is yet to succeed. The current study identifies the impact due to poor interoperability between applications and takes considerable effort to minimise or eliminate if possible. Software Interoperability Matrix (SIM) is the proposed solution delivering the outcome. Action research is the methodology adopted to develop SIM, in which researchers and professionals actively participated. Major industry contribution of SIM is to realise interoperability issues between BIM players prior to the project and upon identification, precautionary measures can be taken introducing new plug-ins or completely switching to new compatible application if it is the only solution.