No matter where you go in the Seoul metropolitan area—Wirye, Gwanggyo, Siheung, Cheongna, Magok, Hanam, Samsong—you'll find new commercial units that have sat empty for years. This shows just how excessive the supply has become. Between 2000 and 2019, 30 million square meters of commercial land were added in Seoul. But the economically active population in the city keeps dropping, so even with more supply, demand is actually falling.