79 Waterloo Road, Kowloon Inland Lot 2076 [????- ]
This was the home of Butterfield & Swire's comprador Mok Kon Sang's 6th wife. It is/was No. 79 Waterloo Road, Kowloon Inland Lot 2076. Today, Imperial Court, and part of Yee On Court occupies this space.
Mok Hing Kiu's family at No. 73 could reach their aunt at this mansion via Julia Avenue and a pathway to the back of her house.
I can't supply any dates, other than the date of 1931 as given by the Kadoorie Estate website for this photo. Mok Hing Kiu's family occupied their house at No. 73 between 1928 and 1936.