# Gangnam vs Hongdae vs Seongsu: Seoul's Hottest Retail Districts in 2026 The commercial landscape of Seoul is undergoing a dramatic transformation. Which district should your brand choose for its Korean market debut? --- Executive Summary Seoul's retail geography in 2026 tells three very different stories: - Seongsu: The undisputed winner with 3.7% vacancy rate - Gangnam: The stable powerhouse with rising rental rates (+0.68%) - Hongdae: The struggling icon facing 13% vacanc