Die Jungen Tiger von Hongkong - Robert Woods (1969) - 38 Island Road, Deep Water Bay

The main bad guy in the film, who also happens to be the father of one of the idle youths getting into trouble with the police, lives in a rather splendid property on the Deep Water Bay coastline. After a bit of digging around (plus some looking back at Stewart Granger's Red Dragon that used the same property) it looks as though the building is still around and stands at 38 Island Road. The house is called "Marechiaro". The build date for this house is 1945, which means it is actually pre-war as many records were lost/destroyed during the Japanese occupation and 1945 is given as the default date for anything pre-war.