The old Wan Chai Post Office is the oldest surviving post office building in Hong Kong. This L-shaped building, situated at the junction of Wan Chai Gap Road and Queen’s Road East, was erected in 1912-1913, and was opened on 1 March 1915 as the Wan Chai Post Office. It is a simple pitched-roof structure with attractive gable ends and mouldings. In 1993, the Environmental Protection Department converted the building into the "Wan Chai Environmental Resource Centre". After renovation, the building was renamed “kNOw Carbon House” in 2024.
Old Wan Chai Post Office was declared a monument in 1990.
Please browse this website for the opening hours of "kNOw Carbon House".