Key Colony Beach
A planned, walkable island city just off Marathon.
Key Colony Beach is its own incorporated city on a sub-island off Marathon. Grid streets, sidewalks, a par-3 golf course, and a tight-knit second-home community make it feel different from anywhere else in the Keys.
Bicycle-paced, grid-street coastal city. Easy to walk, easy to know your neighbors.
Second-home buyers who want walkability and community, retirees, and buyers attracted to specific VR rules.
Canal homes, ocean-front homes, a handful of condos, and single-family homes on interior streets.
Most homes are on canals or open water. Ocean-front is limited and commands a premium.
KCB has its own rental rules (currently minimum 7-day rentals city-wide) — check the latest ordinance before buying for income.
Key Colony Beach FAQ
- How is Key Colony Beach different from Marathon?
- Key Colony Beach is a separate incorporated city with its own zoning, rental rules, and building code context. It's physically adjacent to Marathon but operates independently.
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