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[Lee Hyun-cheol] Apartment Cycle Research InstituteOctober 26, 2026

"I Clearly Warned You": Do Not Risk Everything to Buy a Home. Buy Carelessly Through 27 and You Will 100% Regret It | Lee Hyun-cheol

An independent exercise, not a statement by the video creator or verification of every claim in the video.

Calculate housing equity losses separately from the cash runway

This is hypothetical, not an actual property or loan. A KRW600 million home bought with KRW200 million of equity and KRW400 million of debt falls 20% to KRW480 million. If principal is unchanged, equity before costs becomes KRW80 million, a 60% decline. That valuation loss is not itself the monthly cash shortfall. In a simplified interest-only calculation, annual interest of 4% on KRW400 million is about KRW1.33 million monthly, rising to KRW2 million at 6%. If income stops and the actual monthly gap including living costs and debt service is KRW3 million, immediately accessible cash of KRW18 million lasts 6 months. A later sale or additional repair and moving costs can create a funding gap regardless of possible price recovery.

Check for yourself

  1. What equity remains after outstanding debt and selling costs?
  2. What is the monthly gap including principal, living costs and other loans?
  3. Does the plan cover receipt of sale proceeds after cash runs out?

Limits of application

Prices, debt, rates and cash are assumptions, not product recommendations or eligibility determinations. Equity calculations exclude taxes, agent fees and repairs; interest-only calculations differ from amortizing payments. The runway excludes deposit interest, unemployment benefits, asset sales and unexpected costs, and gives no house-price forecast or optimal purchase date.

What to look for
Connect housing plans to price, borrowing, income and sale-liquidity risks that remain after researching location.
Why it matters
Calculate equity losses from falling prices separately from monthly cash shortfalls, and examine resilience to relocation, unemployment and changes in tax eligibility.

Timeline

5 segments
  1. Income loss or relocation may require cash before a home can sell at the intended time and price; valuation losses and immediate payment shortfalls are separate. Do not determine officetel status from address registration alone or apply one disposal deadline and surcharge to every situation; marriage-related consolidation and replacement-home exceptions differ. Official amendment information describes an extended marriage-related exception, so holding, occupancy, acquisition and disposal conditions require separate checks.

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Educational information only; not investment advice.