Sub-$1M Seoul Apartments Emerge as Household Debt Risk

The Bank of Korea warned that rising home prices in Seoul's prime districts could trigger a "balloon effect," spreading price pressures to surrounding areas. Apartments priced below 1.5 billion won ($1.05 million) are emerging as a potential flashpoint for household debt.

According to the BOK's March 2026 Monetary and Credit Policy Report submitted to the National Assembly on the 12th, apartments priced at 1.5 billion won or less accounted for 96.2% of Seoul metropolitan area transactions in January, up from 88.6% in March 2025.

The shift reflects buyers moving toward more affordable mid-to-low-priced housing as prices in premium areas—including Gangnam's three districts and the "Mayongseong" corridor (Mapo, Yongsan, and Seongdong)—have become prohibitively expensive.

High-end properties exceeding 1.5 billion won face stricter lending requirements and require larger down payments, limiting their impact on household debt. In contrast, homes below this threshold attract buyers who rely heavily on mortgages, raising concerns that increased transactions could fuel debt accumulation.

The BOK noted that per-transaction loan amounts are actually higher for mid-priced homes. "Due to the government's tiered mortgage limit policy, per-transaction loan amounts for homes in the 900 million to 1.5 billion won range have increased, while those for properties exceeding 1.5 billion or 2 billion won have declined," the central bank said.

The jeonse rental market adds another variable. Declining new housing supply combined with tighter jeonse loan regulations have sustained upward pressure on jeonse prices. Rising jeonse costs could push renters toward home purchases, further increasing mortgage demand.

However, recent interest rate increases and government policy measures may help cool the market. As of February, the five-year bank bond yield reached 3.73%, raising the prospect of higher mortgage rates. Seoul apartment listings have also increased ahead of the May expiration of the capital gains tax exemption for multiple-home owners. The government's housing supply expansion plans are also expected to temper price expectations.

The central bank remained cautious about declaring a trend reversal in the housing market. While the government's firm stance on curbing prices has dampened market sentiment, it is premature to conclude that a structural decline has begun.

Hwang Kun-il, a member of the Monetary Policy Board, said in his message as supervising commissioner: "Rather than forming expectations in any particular direction, it would be advisable to maintain a cautious neutral stance for the time being."

Hwang added: "The future path of inflation and growth will be significantly influenced by U.S. tariff policy, monetary and fiscal policies of major economies, semiconductor market conditions, and the recent Middle East situation. We need to closely monitor geopolitical risks and their impact on the domestic economy."

The BOK also distinguished the current inflation environment from 2022. A senior deputy governor said: "In 2022, supply shocks and post-COVID demand recovery coincided, pushing inflation well above target. Currently, inflation is relatively close to target and demand-side pressures are not as strong as they were then."