[4] The building housed the New Territories West (NTW) Regional Office of the Water Supplies Department.
It was a depot-type office for the operation and maintenance staff and vehicles of the Water Supplies Department and its contractors.
It served the "NTW region", covering Tsuen Wan, Kwai Chung, Tsing Yi, Yuen Long, Tuen Mun and Tin Shui Wai.
[2] A section of the "Mongkok's Graffiti Wall of Fame" was painted on north eastern side of the building.
[8][9] The redeveloped site also includes the area of the former FEHD Sai Yee Street Environmental Hygiene Offices-cum-vehicle Depot.