Different types of flats under HDB will have different sets of criteria that you will have to fulfill in order to make a purchase. All criteria typically involve citizenship status, age, family nucleus, income ceiling, time bar and ethnic policy factors.
In the case of Single Singaporean Citizen Scheme, single Singapore citizens who have reached the age of 35 (based on date of birth) can buy a resale HDB flat under the Single Singapore Citizen Scheme. There is no restriction by flat type or location.
As for widowed persons and orphans, the age criterion is at least 21. For an orphan buying a resale flat on his or her own, he or she must not have another sibling below the age of 35 buying a flat separately under the Orphans Scheme, Single Singapore Citizen Scheme or Joint Singles Scheme.
There is no income ceiling for this scheme unless applying for CPF Housing Grant and/or an HDB loan. Should you apply for the CPF Housing Grant for Single, your household income must be less than $3000, else you will not be granted the CPF Housing Grant.
A purchaser can own private property (unless applying for CPF Housing Grant) but must live in the HDB resale flat. However if you are applying for CPF Housing Grant, you MUST not be owner of any private property.
