Korea's 80% youth mortgage lands on a housing stock that barely qualifies

The eligible pool is measurable. Seoul sold 5,541 officetels priced at or below the ceiling in the first seven months of this year ^[5], which annualises to roughly 9,500 units at current turnover ^[1]. Row and multi-unit houses make up the other side of the eligible category, and there the average sale was 428.52 million won ^[4], 28.52 million won above the line, or 7.1% ^[2]. Qualifying purchases therefore come out of the cheap tail of that distribution, and the tail has a documented problem: the head of an agency in Myeonmok-dong, Jungnang-gu told Seoul Economic Daily that there are listings under 400 million won, "but not many are actually livable," adding that young buyers care especially about parking and the condition of the home ^[13]. The redevelopment route, buying a cheap non-apartment property for the right to a future apartment, is thin even in Seoul's low- and mid-priced districts at early project stages ^[18].

The collateral is also the slowest-moving thing in the disclosure data. In July, Seoul officetels of 40 square meters or less were up 0.68% from a year earlier, while units above 85 square meters were up 4.3% ^[10][11]. Given the average size of the sub-cap stock ^[6], the subsidised leverage attaches to the size band with the weakest price record rather than the band that has held value.

Compounded over the 102 months from January 2018 to July 2026, the Seoul officetel index gained about 0.37% a year and apartments about 3.27% ^[4][5]. Run both forward five years and the officetel adds 1.9% while the apartment the buyer hopes to move into adds 17.5% ^[6]. The deposit required for the next purchase grows many times faster than the equity meant to fund it. Row and multi-unit houses, up 16.69% since 2018 ^[8], sit between the two, which is why the shortage of livable sub-cap listings matters more than the loan terms do. Seoul Economic Daily reports the view that the plan could set young buyers back both in accumulating assets and in relocating ^[17].

Shin Bo-yeon, a professor of real estate AI convergence at Sejong University, told the paper that policy should let young people buy apartments instead of pushing them into non-apartment homes with weak resale value, and pointed to public equity-accumulation sales priced at development cost ^[15]. That is a supply proposal. What launches next year is a credit product ^[1], and credit is the one part of the chain the government can change on its own schedule. Origination will respond. The transaction record says the housing will not ^[16].