Thanks to all. The link is exactly what I'm looking for.
I plan to move to condo for a better quality of living - better security, good private facilities like gym and pool. At the same time, I wish to keep my
HDB as there's still the very low-cost HPIS which is a form of life insurance. With the HPIS, it's as if my husband and I are each insured for a couple of hundred K. Now, speaking of this, does anyone know if the HPIS will be voided if we rent our flat out? Logical reasoning tells me no, unless there's some black and white stating this (I couldn't find any so far).