It is very common for Singaporean and SPR to own
HDB as their first property. Once they fulfill their Minimum Occupation Period (MOP), basically they can invest in another property with the restriction, if both are PR's they must sell their
HDB if they plan to buy Singapore private residential.
Some of them may want to venture into overseas property market due to higher return and lower tax offered in that particular country. The most common question asked is "Can I buy overseas property if i own an
HDB"
Here is the article on
Can HDB owner buy overseas property