Date
Details
Price
Change
Source
1/10/2026
Listed
$1,725,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$1,725,000
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Property 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.
Full Property Details
Full Property Details for 668 & 670 89th Street Ocean
General
- Price: $1,725,000
- Taxes: $12,919 (2025)
- Status: Active
- Type: Duplex
- Source: 927
- MLS ID: 618025
- Updated: 5/13/2026
- Added to Site: 174 day(s) ago
Interior
- Appliances: Dishwasher, Dryer, Freezer, Microwave, Oven, Range, Refrigerator, Washer
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 4
Bedrooms
- Total Bedrooms: 4
Exterior
- Deck/Patio: Open Porch/Balcony
- Porch/Patio/Deck: Open Porch/Balcony
Parking
- Parking Features: Covered
Location
- Area: 16 - Sombrero Bch Rd to Vaca Cut - Oceanside
- County: Monroe
- Subdivision: Gulfstream Shore (Marathon) (52.0)
Community
- Assoc. Fees Include: None
- Pets Allowed: Yes
Heating & Cooling
- Central air: Yes
- Air Conditioning: Yes
- Cooling Type: Central Air, Ceiling Fans(s)
Structural Information
- Architectural Style: Above Flood
- Construction: CBS
- Square Feet: 2,016
- Sq. Ft. Source: Property Data Card
- Year Built: 1976
Unit Information
- Units in Building: 2
Lot Features
- Property View: Canal, Open Water View, Ocean
- Lot Size (Acres): 0.14
- Lot Size (Sq. Ft.): 6,440
- Lot Size Source: Property Data Card
- Zoning: RM - Residential Medium
Water Features
- Water Front: Yes
- Water View: Yes
- Water Front Desc.: Canal Front
Financial Considerations
- Tax Amount: $12,919.92
- Tax Year: 2025
Disclosures and Reports
- Legal Description: Gulfstream Shores Of Marathon Fla Plat No 1 Key Vaca Pb3-89 N1/2 Lot 5 Blk 4
- Flood Zone: AE
- APN: 00349830-000000
Listed by Lokation Real Estate, Frank Griffiths (305) 563-1838
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Listing agent
— 668 & 670 89th Street Ocean —
Frank Griffiths
Lokation Real Estate
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 668 & 670 89th Street Ocean
School District:Monroe County School District, Middle Torch Key, FL
| Name | Grades | Distance |
|---|---|---|
Stanley Switlik Elementary School 3400 Overseas Highway, Marathon, FL 33050 | PK-5 | 2.8 mi |
Marathon School 350 Sombrero Beach Road, Marathon, FL 33050 | 6-12 | 2.1 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 668 & 670 89th Street Ocean
Estimate the Cost
Estimate the Cost for 668 & 670 89th Street Ocean
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668 & 670 89th Street Ocean, Marathon, FL 33050 (MLS# 618025) is a Duplex property with 4 bedrooms and 4 full bathrooms. 668 & 670 89th Street Ocean is currently listed for $1,725,000 and was received on January 10, 2026. Want to learn more about 668 & 670 89th Street Ocean? Do you have questions about finding other Duplex real estate for sale in Marathon? You can browse all Marathon real estate or contact a Coldwell Banker agent to request more information.