Interim Installment Loan (Jungdogeum Daechul): Korea's Pre-Sale Financing
A construction installment bridge loan where a bank covers building costs in stages on your behalf until your new pre-sale home is fully built.
Definition In South Korea's pre-sale housing market, an interim installment loan (jungdogeum daechul) is a bank loan that finances staged construction payments over the 2 to 3 years before moving in. It typically accounts for about 60% of the total purchase price and is usually converted into a regular long-term mortgage once the apartment is completed and deeded.
Paying for a Brand-New Home in Three Stages
Imagine ordering a custom-tailored suit: you pay a deposit when selecting the fabric, intermediate payments during fitting adjustments, and the remaining balance when you pick up the finished garment. Buying a brand-new, unbuilt apartment through Korea's pre-sale system works the exact same way.
After winning a pre-sale housing subscription, the buyer pays a down payment (usually 10โ20%). Over the next 2 to 3 years of construction, they pay interim installments tied to building progress (around 60% of the total price) split into 4 to 6 payments. Finally, when construction wraps up and keys are handed over, the buyer pays the remaining balance (20โ30%).
The challenge is that interim payments make up well over half the property's cost, amounting to hundreds of thousands of dollars. Because buyers must produce large sums every few months, most people cannot manage this cash flow without bank financing.
A Collective Group Loan, Not an Individual Mortgage
While digging the foundation and pouring concrete, an unbuilt apartment cannot serve as collateral for a standard mortgage. Therefore, the construction company partners with banks backed by public guarantee agencies, arranging for all buyers to receive a pooled loan together.
This is known as a 'group loan' (jipdan daechul). Instead of each buyer going through complex individual bank underwriting, the bank automatically disburses loan funds directly to the builder's construction account on scheduled dates.
Interest payment structures also matter. While some pre-sales offer 'interest-free' terms where the builder covers interest, most use a 'deferred interest' system where accrued interest during construction is paid in a lump sum at move-in. It is essential to remember that deferred interest is not free moneyโinterest accumulates quietly the entire time.
To Put It More Precisely
An interim installment loan is not a 10- or 30-year long-term loan. It functions as a temporary bridge loan until building completion.
Once construction finishes and the building is officially registered, the property gains full legal collateral value. At move-in, buyers must either convert this interim loan into a standard long-term mortgage, pay it off with personal savings, or settle it using a lump-sum tenant deposit (jeonse).
Keep in mind that if lending regulations tighten or market prices fall below the original sale price by completion, your maximum mortgage limit could shrink. Failing to pay the final balance makes moving in difficult, so a solid repayment plan is vital from day one.
๐ค Common misconceptions
A deferred-interest interim loan is completely free of interest charges during the construction period.
Interest is not waived. The builder advances the monthly interest to the bank during construction, and the buyer must settle the accumulated interest in a lump sum upon moving in.
๐งบ Where you meet it
An interim installment loan is a collective bridge loan in Korea that funds construction stages for unbuilt pre-sale homes, converted into a standard mortgage upon completion.