With regards to kitchen sinks, one has the option of whether to install a one-bowl sink or a two-bowl sink depending on the workload of the person. You wouldn’t have a two-bowl sink if you’re only 3 in the family, wouldn’t you? It takes up unnecessary space when in fact you could have placed a nice coffee brewer in that very same spot.
If you have granite table tops, better make use of an under mount kitchen sink to achieve that optimum look on your table top. Faucet styles should also be considered. High arched brass faucets add elegance and can create a dramatic look to your food hub.
Photo taken from http://www.construction-zone.com