Korea's volcanic honeymoon island has spent a decade oscillating between Chinese casino capital and domestic wellness retreat. The 2025–2027 pipeline finally settles the question: global soft brands and Marriott flags are arriving, the Four Seasons is still a promise, and Jeju's stock of genuinely international hotels is quietly doubling.
Jeju's new-build pipeline is thinner than its reputation suggests — the island's big integrated resorts were mostly completed in the 2017–2020 wave. What is new in 2025–2027 is rebranding: global flags replacing local nameplates, and soft brands using Jeju as their Korean debut.
Jeju was built twice. The first construction boom — Shinhwa World, Dream Tower, the casino resorts — was built for a Chinese visitor who stopped coming when politics intervened in 2017. The second boom, the one now playing out in 2025–2027, is built for a Korean guest who never left: domestic tourism filled the island's rooms through every diplomatic freeze, and the hotels opening now reflect that loyalty rather than betting against it.
The Sheraton conversion is the tell. Marriott did not build a resort; it bought a 21-year-old waterfront tower in Jeju City and re-aimed it at the sea, at MICE groups, at the domestic weekend market that books 100-metre infinity pools the way Seoul books rooftops. WorldHotels made the same calculation from the other direction: its Korean debut is not a Gangnam address but a forest hotel beside a lava tube park, because Jeju is where Korea's leisure demand actually lives.
The unbuilt Four Seasons hangs over all of this as a useful ghost. Its absence says what the market will not: Jeju's ceiling is not ultra-luxury international demand but premium domestic and regional demand — Japanese, Chinese returning slowly, Southeast Asian — served by brands that can flex between resort and city, hotel and residence.
Watch the residences. JW Marriott's branded homes beside its Seogwipo resort are the island's first experiment in selling Jeju rather than renting it. If they clear, the next pipeline will not be hotels at all — it will be ownership, and Jeju will have completed its transformation from honeymoon island to second-home market.
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