The building sector is responsible for nearly half of annual global carbon dioxide emissions and therefore reducing carbon emissions has become the trend for future buildings. Carbon emissions from buildings and construction projects are sourced from both operational emissions; largely due to the energy used in operating the building throughout its life and; embodied emissions, by and large, attributable to the energy used for the extraction, processing, manufacturing, and delivery of building and construction materials to the project site.

Despite the fact that the transition to a low-carbon economy is gaining momentum, there is still a great deal of work to be achieved. Decarbonisation involves significant commitment from everyone. It requires a transformational shift in the way we operate; from sourcing, using, consuming, and thinking about energy. It also requires a substantial financial commitment from investors and governments.

PAQS 2023 brings you closer to synergising this effort of decarbonisation of our built environment. Quantity surveyors and cost engineers have roles to play in this mission. Papers and presentations of new and emerging ideas are welcome through the following sub-themes:

SUB-THEME 1: Quantity Surveyor’s Roles, Practices and Management in Carbon Efficiency

This theme invites the industry practitioners and academia views and record of best practices on the effort exerted in reducing carbon footprint within a wide range of quantity surveying practices. It aims to gather insight on the changing roles, and the way practices ought to adapt to the change brought by resilient future practices in quantity surveying and beyond. This theme embraces the fundamental topic of management in quantity surveying practices, alignment of carbon awareness with quantification and finance, and the efficient use of resources. The growing interest in the effect of carbon on the wide range of quantity surveying practices and management would be addressed in meeting the need for sustainable quantity surveying practices.

SUB-THEME 2: Building Liveable and Resilient Cities

Green and sustainable solutions are called upon to make our built environment more liveable and resilient to deal with climate change implications. Green policies, such as carbon pricing schemes and renewable portfolio standards for green buildings and sustainable city planning may not be adequate and efficiently adopted in practice for delivering the United Nations’ Sustainable Development Goals (SDG). Building design features should promote human well-being and decarbonisation through the state-of-art of adoption of sustainable solutions in the built environment. This also requires industry stakeholders’ engagement and involvement in the environment, social and governance (ESG) and sustainability initiatives. Circular initiatives and people-centricity features should transform the delivery system of sustainable buildings. This theme invites novel solutions and case studies of liveable and resilient cities from all over the region.

SUB-THEME 3: Integrative & Collaborative Project Delivery

Would this integrative and collaborative project delivery have implications for future sustainability and has become a key area to promote low carbon emission projects? Integrative and collaborative aims to optimise the benefits of collaborative working in construction project delivery. New technologies emerged pledge to deliver efficiency, cost savings, and productivity increases to the construction industry. The application of building information modelling (BIM) also drives the construction industry for more integrative and collaborative project delivery. Would the integrated project delivery and effective integration strategies enhance connectivity and collaboration between major stakeholders? This theme invites all industry practitioners and academia to share their views, experience, and best practices to pursue the drivers for effective collaborative working in construction project delivery.

SUB-THEME 4: Construction Materials for a Low-Carbon Future 

Modern green buildings consider low-carbon options like green concrete, recycled steel, or mass timber. However, making the exact right choice is not an easy thing. Buildings should be designed and materials selected based on the balanced consideration of the embodied energy with factors such as climate, availability of materials, and transport costs. This theme invites novel ideas and solutions for low-carbon building and construction materials and technology and the whole life cycle of the built environment.  Topics may include but are not limited to novel low carbon materials production and pricing, material reuse and recycling, green demolition and reconstruction materials, and low carbon refurbishment and retrofitting.