A safe neighbourhood is a rare thing. However, all of Kovai Hills are a safe haven from the rest of the city.
To begin with, there's a video door phone installed in all the houses. Which means you will be able to see exactly who you let inside the house. Second, it is a gated community. So there is a manned-security level just outside your house. Then, all residents will be bio-metrically scanned. So, even your long-lost twin would have to call you before the reunion.
And finally, all visitors will be provided special entry passes only after verification from the residents, i.e., you.