In response to the COVID-19 outbreak in 2020, Hong Kong Government had to provide sufficient quarantine facilities within the shortest possible time to prevent spread of the pandemic in the community. CEDD was tasked to work in conjunction with ArchSD to design and construct a new quarantine camp in Penny’s Bay on Lantau Island, the largest of its kind in Hong Kong. CEDD awarded two contracts, covering formation of 15ha of land, construction of infrastructure works including 6.7km of roads and 22km of services, as well as provision of 400 nos. of quarantine units and supporting facilities. The works for Phases I, II and IV quarantine camp were commenced in February 2020, May 2020 and August 2020 for completion in April 2020, June 2020 and November 2020 respectively. The application of MiC technology is a key factor to completing the Penny’s Bay quarantine camp to an unprecedentedly tight programme. It has significantly reduced the overall construction period by at least half, when compared with traditional construction methods. With the successful completion of the quarantine camp, the MiC technology has been increasingly and widely used in fast tracking the building of many community facilities such as transitional housing and temporary hospital. This success story exemplifies engineers’ contribution to combating the COVID-19 pandemic for Hong Kong.