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$16,000,000
Marathon, FL 33050
Estimated payment $81,480/month
no HOA · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr
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.
Tour with a local agent
| Date | Event | Price |
|---|---|---|
| 2026-08-12T00:00:00.000Z | Listed for sale | $16,000,000$6944/sqft |
Vladimir Rochebrun
Compass Florida, LLC
Brokerage Phone: 305-851-2820
Source: Beaches MLS · MLS #A12069701
Data Powered by Home Junction, Inc.
FLORIDA KEYS COMMUNITY COLLEGE - MIDDLE KEYS CENTER
1.1 mi
MARATHON SCHOOL
High · 1.1 mi
STANLEY SWITLIK ELEMENTARY SCHOOL
Elementary · 2.1 mi
Publix Drive-Up
1.8 mi
Paradise Produce
1.9 mi
Winn-Dixie
1.9 mi
Wahoos Bar & Grill
0.6 mi
Godfathers Pizza
0.9 mi
Marathon Pizza & Pasta
1.4 mi
Marathon Community Park
1.8 mi
Jesse Hobbs Park
1.9 mi
Sombrero Beach
0.6 mi
Coca Plum Beach
5.4 mi
Campground Beach
6.9 mi
Nearby amenity locations include data © OpenStreetMap contributors.