The President, our neighbor

A week ago, while waiting for the bus near our apartment, we spotted the President of Singapore, S.R. Nathan, returning home from a day's work. Yup, though a large Presidential residence is available to him, he has chosen to stay put at his own home - which is on the street adjacent to our apartment block.
Other than an obvious guard booth outside the terrace house, his home is no different or fancier than his immediate neighbors. I walk by his house whenever I have to catch a bus to my office but that day last week was the only presidential sighting we've had so far.