The First Crack in 100 Weeks: 3 Questions the Gangnam & Yongsan Apartment Price Drop Poses to Korea's 'Indestructible Real Estate Myth'

Why you need to read this now: Gangnam apartment prices — long the symbol of South Korea's real estate market — have finally turned negative for the first time in roughly 100 weeks (about two years). Whether this represents President Lee Jae-myung's policy pressure taking hold, or merely a technical correction, is a judgment that could reshape the asset plans of millions of households.

TL;DR

• In the fourth week of February 2026 (as of Feb. 23), apartment transaction prices in Gangnam-gu, Seocho-gu, Songpa-gu, and Yongsan-gu all reversed into decline simultaneously
• Gangnam-gu and Seocho-gu recorded their first decline in approximately 100 weeks since March 2024
• President Lee Jae-myung's month-long focused pressure campaign on real estate (urging multi-homeowners to sell, statements at cabinet meetings) served as the direct catalyst
• An increase in distressed listings by multi-homeowners ahead of the May 9 expiry of the capital gains tax surcharge exemption added further downward pressure
• Seoul overall is still up +0.11% — the exact point where the debate between 'beginning of a crack' and 'temporary correction' is fiercest

1. The Facts — What Happened

According to the Weekly Apartment Price Trends for the Fourth Week of February 2026 released by the Korea Real Estate Board on February 26, 2026:

Seoul apartment listings have increased by over 14,000 units in recent weeks. The Bank of Korea's Consumer Survey (February) showed the Housing Price Outlook Index dropping to 108, a sharp fall of 16 points from the previous month — the largest single-month drop in 3 years and 7 months.

2. Drivers — Why Now?

① President Lee Jae-myung's 'War on Real Estate'

President Lee has been sending a continuous stream of pressure messages on real estate via his X (formerly Twitter) account and cabinet meetings since January 2026.

• "There's a saying not to fight the market — but there's also a saying not to fight the government." (Feb. 24 statement)
• Urging multi-homeowners to sell immediately, simultaneously pressing for amendments to the Commercial Act, introduction of a bank levy, and real estate policy tightening
• The Presidential Office went as far as using the phrase "dismantling the real estate republic" on Feb. 26

The unprecedented situation of a sitting president personally and persistently sending decline signals to a specific asset market for over a month finally began to break down the psychological support line.

② D-72 Days Until Multi-Homeowner Capital Gains Tax Surcharge Resumes

The current exemption from the capital gains tax surcharge (up to 75%) applied to multi-homeowners is set to expire on May 9, 2026. Multi-homeowners seeking to dispose of properties before the exemption ends have begun listing at reduced prices, creating a situation where the pace of new listings is outrunning transaction volume.

③ Prolonged Rate Freeze and Lending Restrictions

The Bank of Korea froze its benchmark interest rate for a sixth consecutive time on February 26 (currently 2.75% per annum) and raised its growth forecast to 2.0%, causing expectations of rate cuts to recede. With high-rate loan burdens persisting and expectations of further price appreciation fading, sellers who had been holding out began releasing inventory.

3. Context — Why Does Gangnam Matter?

The 'Gangnam is invincible' myth is about far more than just home prices. The three Gangnam districts (Gangnam, Seocho, Songpa) and Yongsan-gu serve as the benchmark for real estate asset prices across South Korea and as the compass for national market sentiment.

• Average apartment transaction price in Gangnam-gu: approx. 2.8–3.5 billion KRW (as of 2025)
• When Gangnam prices fall → weakened redevelopment expectations → lower bank collateral values → reduced loan limits
• Conversely, when Gangnam prices rise → upward ripple to outer Seoul metro and regions → nationwide asset inflation

This is why the market is reacting so sensitively to the fact that this is "the first decline in 100 weeks."

4. Outlook — Is This a Real Break, or a Technical Correction?

🔻 Continued Decline Scenario (Bear Case)

• May 9 capital gains surcharge exemption expires → further influx of distressed listings
• Continued regulatory pressure from the Lee Jae-myung administration → market sentiment contraction
• Housing Price Outlook Index at largest drop in 3 years and 7 months → chase-buying disappears

🔺 Rebound Scenario (Bull Case)

• Seoul overall is still up +0.11% — demand outside Gangnam remains solid
• Genuine owner-occupier demand shifting near redevelopment and reconstruction sites
• Gyeonggi +0.10%, continued gains in surrounding areas including Yongin, Guri, and Seongnam Bundang
• If rate cut expectations reignite, buying could resume

📋 Checklist: 3 Things to Watch Now

References

• Herald Economy: 'Did Lee's resolve work?'… Gangnam 3 districts & Yongsan apartment prices decline for first time in 2 years (2026.02.26)
• Dankijigo: Lee's 'real estate war' declaration works… Gangnam apartment prices reverse into decline after one month (2026.02.26)
• Yonhap News: Seoul apartment prices break… Gangnam 3 districts & Yongsan reverse into decline (2026.02.26)

Image credit: Seoul Panorama (wopto) — Wikimedia Commons, used after copyright verification