Whether for stay or for investment, land is always the best choice for the well-heeled. Landed houses in Singapore, due to its scarcity and versatility, are in rage these days. Despite the headwinds of global and local economy, landed homes present resilience against price drops, and when economy picks up, they are among the best performing.
Katong Homes 
Looking promising, interested to know its whereabouts. It must be very expensive.
There are some on sale in Katong area, like Wareham Road. Prices varies depending on exact location and size.
I will ask my friend to contact you directly one to one.