One Causeway Bay is a premium commercial redevelopment in Causeway Bay, Hong Kong, transforming the former Excelsior Hotel site into a Grade A office and retail complex. Located on the first plot of land sold after Hong Kong became a British colony in 1841, the project occupies a prominent waterfront location in one of the city’s most established commercial districts.
Developed by Excelsior Hotel (BVI) Limited and designed by Ronald Lu & Partners, with façade design by KPF, One Causeway Bay involved the redevelopment of the iconic Excelsior Hotel into a new Grade A office and retail destination. The project reimagined a historically significant site while delivering contemporary commercial space in the heart of Causeway Bay.
The development received a Merit award in the Hong Kong Non-Residential (New Building – Non-Government, Institution or Community) category at the Quality Building Award 2026. The biennial award recognises excellence in building quality, design and construction, with the 2026 theme focusing on innovation, sustainability and community impact. The achievement reflected the collaboration between One Causeway Bay Limited, HKL (Project Management) Limited, Ronald Lu & Partners, Gammon Engineering & Construction Company Limited and the wider consultant team.
WT provided quantity surveying and cost management services for One Causeway Bay in Hong Kong, supporting the redevelopment of the former Excelsior Hotel into a Grade A office and retail complex.