Special Supply Eligibility Calculator

Korean apartment sales set aside part of every development as "special supply" alongside the general lottery. A fixed share of the units goes to groups the government wants to house first: first-time buyers, households with several children, people supporting elderly parents, and persons of distinguished service. Each category has its own conditions, and one household can qualify for more than one at the same time. This calculator asks a handful of questions about your household and sorts out which of the five categories whose conditions are written as absolute rules in the 주택공급에 관한 규칙 are open to you.

For each category the result shows whether it is open or blocked, what is missing if it is blocked, what you still need to verify in the sales announcement if it is open, and the share of units reserved for that category together with the governing article. "Open" does not mean you will be selected. It means you clear the conditions the rules state outright; income and asset limits, priority rankings and competition come after that.

Anyone trying to work out, before an announcement is published, which special-supply categories they could enter. Announcements list the conditions for every category at length, and matching your own situation line by line is easy to get wrong. The calculator asks whether your household currently owns no home, whether anyone in it has ever owned one, whether you are married or have children, how many minor children you have, whether you support an elderly parent, how many years you have paid income tax, whether you are a person of distinguished service, and whether you have already used a special supply, and filters the categories from those answers.

It is used most by people aiming at the first-time buyer category. That category requires that nobody in the household has ever owned a home and also counts the years of income tax paid. Being married or having a child removes one condition; with neither, a separate income condition must be met. The screen shows that branching immediately.

The basis is the 주택공급에 관한 규칙. First-time buyers fall under art. 43(1) for public housing and art. 43(3) for private housing of 85㎡ or less, households with multiple children under art. 40, those supporting elderly parents under art. 46, persons of distinguished service under art. 45, and the once-only limit on special supply is art. 55. The calculator checks art. 55 first: if you have already used a special supply, all five categories close. It then checks the no-home condition for every category, and on top of that the ownership history and tax years (five or more) for first-time buyers, the number of minor children (two or more) for multi-child households, three continuous years supporting a direct ascendant aged 65 or over for the elderly-parent category, and status for the distinguished-service category.

The share of units is shown exactly as the rules put it. First-time buyers get Up to 20% of public housing built, by lottery in public housing and Up to 17% of private housing of 85㎡ or less (7% on land other than public sites), by lottery; multi-child households Up to 10% of units built, or 15% where the approving authority allows it; those supporting elderly parents Up to 3% of units built; persons of distinguished service Up to 5% of public housing built, or 10% for public rental, for applications to 31 March 2029. Income limits appear in the rules only as a percentage of the previous year's average monthly income for an urban worker household. The won figure depends on household size and that year's statistics and is printed in each announcement, so the calculator gives you the percentage and leaves the amount to the announcement.

The calculator's default is a household that owns no home and never has, married, no minor children, five years of income tax paid, not supporting an elderly parent, not a person of distinguished service, and no previous special supply. With those answers both first-time buyer categories, public and private, are open, and the summary says you may apply under 2 categories. The multi-child category is blocked for want of two children, and the elderly-parent and distinguished-service categories are blocked because they do not apply. The two open categories carry a checklist for the announcement: first-rank status, the income percentage, and for public housing the savings balance.

Change one answer so that someone in the household has owned a home before, and set minor children to two, and the result flips. Both first-time categories close because of the ownership history, and only the multi-child category opens, giving 1 category. That category looks only at whether you own a home now, not at past ownership. Switch "already used a special supply" to yes and every category closes whatever else you enter.

The most common mistake is reading "open" as a chance of winning. Open means you clear the absolute conditions; above that sit income and asset limits, category-specific priority rules and points, and the competition ratio. For several categories the priority rules are set by the relevant agency rather than the regulation itself, so the calculator does not cover them. The next most common is treating "owns no home now" and "has never owned a home" as the same thing. If anyone in the household once owned a home, the first-time buyer categories close even though you are homeless today, while the multi-child and elderly-parent categories may still be open.

Special supply is once per household. A spouse's earlier allocation counts as the household's history. The calculator also leaves out the newlywed, newborn, youth, agency-recommendation and relocated-institution categories; it judges only the five whose conditions the rules state absolutely, so for the others you must read the relevant notice or announcement yourself. Some people take the absence of a won income figure for a bug. It is deliberate: that figure differs from announcement to announcement, so printing one here would mislead more than it helps.