• Property Type
  • Single Family Residence, Residential
  • 4
  • Bedrooms
  • 3
  • Bathrooms
  • 5760 sqft
  • Area Size
  • 2015
  • Year Built
1 E Sister Rck Island, Marathon, FL 33050
  • $16,000,000

Description

Own an entire private island in the Florida Keys, just ¼ mile offshore from Marathon! East Sister Rock Island offers extraordinary privacy surrounded by turquoise waters, yet is only minutes from the mainland. The property encompasses approx. 6.5 acres, including approx. 5.8 acres of surrounding seabed, creating an exceptional marine setting for snorkeling, swimming, kayaking, paddleboarding, fishing and watersports. The beautifully updated 3-bedroom, 2-bath main residence and detached guest house offer over 5, 000 total SF of living and entertaining space. Recent renovations include an updated kitchen with gorgeous countertops and modern finishes. A 12-ft-wide wraparound veranda captures panoramic water views, sunrises and spectacular Keys sunsets. Amenities include a waterfront pool and spa, tropical landscaping, outdoor entertaining areas, and a 100-ft deep-water dock. Self-sufficient infrastructure includes solar and wind power, battery storage, backup generator, desalination system and freshwater cistern capacity. Private helipad provides additional access. Seller is open to select Joint Venture opportunities.

  • Address: 1 E Sister Rck Island
  • City: Marathon
  • State/County: FL
  • Zip/Postal Code: 33050

Details

Updated on September 23, 2026 at 12:20 pm
  • MLS # A12069701
  • Price $16,000,000
  • Property Size 5760 sqft
  • Land Area 6.44 sqft
  • Bedrooms 4
  • Bathrooms 3
  • Garage Size x x
  • Year Built 2015
  • Property Status Active
  • Office Name Compass Florida, LLC
  • Agent Name Vladimir Rochebrun

Additional Details

  • Listing Terms Cash, Conventional, Other
  • Roof Metal
  • Sewer Septic Tank
  • Cooling Central Air
  • Heating Solar
  • Flooring Other, Tile
  • County Monroe
  • Property Type Residential
  • Pool In Ground
  • Community Features Boat Facilities
  • Waterfront Navigable Water, No Fixed Bridges, Ocean Access, Ocean Front

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