Ah, Chestnut Drive and the hirings known as The Squash Courts! A quick Google Earth shows that they've been demolished and replaced by a large estate of something entirely different. Well, they were a rather strange design! Another bit of nostalgia gone - my girlfriend's parents lived there. And, my subsequent little hiring at 18 Jalan Selanting in Bukit Timah has also been replaced by a bigger/better property. Vandals!!
Your mention of the riots in 1964 has resonance. I guess it was 1968, when I was driving my 'topless Sprite' back from Kranji ranges after a morning out with the Stn shooting team. On the way, whilst passing through a village (Mandai?) I encountered a small crowd of protesters. I had little option but to floor the accelerator and get through as quickly as possible before they noticed me ... as I had half a dozen small-bore rifles in the boot!