The development of information technology continues to evolve to respond the increasing demand and challenges in the construction industry. Building Information Modelling (BIM) emerges in recent years as the fresh solution to make the project lifecycle more efficient by encouraging collaborative working of all stakeholders involved in the construction project, i.e. owners, consultants, and contractors. This study aims to investigate BIM adoption and implementation in Indonesia construction industry and explore challenges and opportunities related to the implementation of BIM. A combination of qualitative and quantitative research method has been adopted for this exploratory research. Data was collected through interviews and questionnaires survey with snowball sampling from twenty entities, consisting of 12 contractors, 4 consultants, and 4 owners. The results show that 60% of respondents have already acknowledged and implemented BIM. The examples of BIM software used by the respondents include Revit, Tekla, and SmartPlan®. Benefits of BIM implementation as perceived by most respondents, e.g. design collision detection, clear project simulation, reduced reworks, and efficient use of resources. The adoption of BIM, however, still faces challenges, such as the absence of requirement and demand, and high investment cost. This research provides an initial understanding of current BIM adoption in Indonesia, which can be used as the basis to develop a national strategic framework for BIM adoption in Indonesia construction industry.

Abstract. The Architecture, Engineering and Construction (AEC) industry is known as one of the prominent sectors contributing to economic stability in Indonesia. On the other hand, this sector is also responsible for significant environmental impact in the country. Building Information Modelling (BIM) is a key innovative technology enabling advanced management within the construction and civil engineering industries and facilitating improvements in sustainability and asset management across the globe. BIM enables the achievement of three sustainable dimensions which are known as Triple Bottom Line (TBL). However, to enable the construction industry in Indonesia to expand and adopt this new engineering technology, the scarcity of the experts in BIM remains a barrier to initiate the migration from traditional management to BIM. From 40 respondents who participated in this study, only 2 respondents had competence in BIM. However, the awareness rate of Indonesian engineers about BIM is actually quite good with 67.5% of respondents having recognised BIM, although mostly with limited or basic knowledge. This research also defines BIM's impact to sustainability aspects in construction.

The construction sector accounts for nearly 40% of global energy annually where 1/3 of it will produce emissions of CO2 emitted into the atmosphere [1]. Carbon Emissions (CO2) are a major cause of the greenhouse effect, for example, that which is produced from the combustion process of fossil fuels. Increasing the concentration of greenhouse gases into the atmosphere will lead to rising temperatures trapped in the atmosphere causing global warming. There is a lot of literature on carbon emission (discussions) using multiple analytical approaches, but some are reviewing the Project Life Cycle (PLC) approach. This paper will discuss carbon emission mitigation during the life cycle of a construction project (Project Life Cycle (PLC)). Reduction of carbon emissions can be done during the initiation, design and construction phase of the Project Life Cycle (PLC). This literature study will produce a strategy that can have a significant impact on reducing the amount of carbon occurring in any construction project activity.

The issue regarding sustainability has emerged significantly in the construction industry. The appealing concept and the future benefits of sustainability have enamoured people to implement this notion progressively. This situation resulted in a trend in the architectural and engineering world. The Gold Coast city, which is located in the southeast of the Australian state of Queensland, is one of the world leading examples in which a government has put a green legacy as the concern in its development. One of the implementations of its sustainability concept is described in its waste management. This study explores the waste management in Gold Coast city in three stages of the project life cycle (PLC): design, construction, and operation. The cost-benefit analysis in qualitative and quantitative approach will be employed to provide the explanation of cost reduction that is achieved by the implementation of specific actions. However, the result of this study shows that the implementation of waste management does not only benefit in cost, but also many other aspects such as energy, built-environment, diversity, carbon critical design, and community lifestyle. This exploration can be the reference to the best practice of sustainability concept implementation in waste management.