Land for Sale in Duck Key, Florida

Rare oversized lot in the heart of Duck Key: 12,099 SF, a lot and a half, well above the typical 7,500 to 7,800 SF lots found throughout the island. The property offers 128' of frontage with a 100' lot depth, exceptional dimensions for a custom island retreat. The lot sits in a favorable flood zone, has no wetlands, and is free of invasive plant species, a clean canvas ready for design. Public sewer is available; no plans or ROGO permit convey with the sale, so buyer to verify with the county. Three houses down, new construction on a 7,500 SF lot recently sold for $2,000,000, underscoring the upside on a lot nearly double the size. Owner will consider owner financing with a minimum 50% down payment. Duck Key delivers the authentic Keys lifestyle: crystal clear waters, easy access to deep drops just outside the island for world-class deep sea fishing, and nearby sandbars like Grassy Key for weekend gatherings. The island is home to a Michelin-rated chef's restaurant, and an optional HOA offers a pool, tennis courts, and additional amenities. Duck Key also has a marina where owners can arrange paid boat storage ahead of storms or hurricanes. Unlike much of the Keys, Duck Key enforces monthly rather than weekly rental minimums, preserving a quieter, more residential feel with less transient tourism, the calm, tropical, island-style living Duck Key is known for. 2025 property taxes were $1,388, which does not reflect any exemptions.