Abstract:
Over the past decade, an increasing number of green residential buildings have been developed worldwide
owing to active promotion from the authorities and the increasing interest from customers. However, in the
same way as traditional residential buildings, the construction of green residential buildings has been
facing various risks. The aims of this study are to identify and assess the diverse risks in green residential
building construction projects, compare their risk criticalities with those in traditional counterparts, and
propose helpful risk mitigation measures. To achieve these goals, a comprehensive literature review was
conducted first, and then a questionnaire was administered to 30 construction companies in Singapore. The
analysis results showed that “complex procedures to obtain approvals”, “overlooked high initial cost”,
“unclear requirements of owners”, “employment constraint”, and “lack of availability of green materials
and equipment” were the top five critical risks in green residential building construction projects. It also
reported that green residential building projects were facing risks at a more critical level than those
traditional residential building projects. Furthermore, this study proposed fourteen risk mitigation
measures that can effectively tackle the risks in green residential building construction projects. This study
contributes to the body of knowledge by identifying and evaluating the critical risks and the responding
mitigation measures in green residential building construction projects. The findings from this study can
also provide practitioners with an in-depth understanding of risk management in green residential building
construction projects, and thereby benefiting the industry.
