668 & 670 89Th Street Ocean
Marathon, FL, 33050
Active$1,725,000
668 & 670 89Th Street Ocean
Marathon, FL, 33050
Active$1,725,000
4
Bedrooms
4
Bathrooms
2,016 sqft
Living Area
1976
Year Built
6,440
Lot Size (sqft)
202
Days on Market
Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
Dock & Water AccessMLS
AI Aerial Imagery Detection
Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.
Navigation RouteDockOnly
Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.
Description
Magnificent legal duplex in the vibrant heart of the Florida Keys, offering highly sought-after 7-day rental flexibility--an exceptional advantage for investors and homeowners alike. Elevated on stilts, this impressive property features two spacious bedrooms and two full bathrooms on each side, creating the perfect setup for extended families, dual living, or maximizing rental income. Ideally located just four properties from the Atlantic Ocean, the home boasts an expansive 70-foot seawall with quick, easy boating access to open water-making it a true boater's paradise. Both residences have been thoughtfully updated with modern finishes, enhancing comfort, style, and long-term value. Whether you're looking for a high-performing vacation rental, a primary residence with income potential, or a combination of both, this rare duplex offers unmatched versatility in one of the Florida Keys' most desirable locations.
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Location
Marathon, FL, 33050
Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]
Listing courtesy of Lokation Real Estate via Florida Keys MLS
Last checked: 5 hours ago
Listing updated: July 31, 2026
© 2026 Florida Keys Board of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the Florida Keys Board of REALTORS®. Information is deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal.
IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
Nearest Bridge Clearances
Florida Keys, critical for tall/large vessels
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$345,000 down
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