Ng's mansion in this story is a rather grand and opulant place located in Jardines Lookout. The address is 10 Perkins Road and a rather big clue to its location is given in the top image below. So blatant was this that I initially assumed it was a fake sign and perhaps 10 Perkins Road was one of Ng's real life properties. I don't think it was, but as a test I had a look at a 1991 aerial image of Jardines Lookout and located the property that matched the one seen in the images below and guess what - yep, 10 Perkins Road. Sadly, this grand old property is no more and it was replaced by a newer version in 1999. However, the property layout remains similar with the steep drive and front garden (though it now has a swimming pool in there). The new house retains the "Koshi Cottage" name.
Despite his immense wealth, Ng's real, main property at the height of his power was a rather more 'humble' place in Kowloon Tong (yep, the properties in Kowloon Tong are significantly smaller than some of those found at Jardines Lookout). In fact, I even wrote a blog post about it on my old history/exploration blog thing (now deleted, but you can see an archive
here). The property became a 'Love Motel' called the "Kent Hotel", but it abruptly closed a few years ago and the old house was
knocked down and replaced by something
twice as high and twice as ugly.
