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- Description
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- Facts & Features
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$16,000,000
Monthly Est:$79,638
4 Beds
- 3 Baths
3 full baths
2,304sqft
1 E Sister Rck Is, Marathon, FL 33050
$16,000,000
$79,638/moEst:
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Single Family Residence
Built in 2015
$-- HOA
6.44 acres lot
$6,944/sq.ft
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.
- Houzeo last checked: 5 minutes ago
- Listing updated: October 30, 2026 at 6:27 pm
- Listing Provided by: Vladimir Rochebrun (305) 690-5851 DRE #3406310, Aaron Lee Rosenthal (954) 249-3178 DRE #3574795 | Compass Florida, LLC (305) 851-2820
- Source: Beaches MLS-FL | MLS#: A12069701

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
1
County
City
Neighborhood
--
Year Built
2015
HOA Fees
-
Finished Area
2,304 sqft
Lot Size
6.44 acres lot
Basement Area
- sqft
MLS Name
Beaches MLS
MLS Number
A12069701
MLS Status
Active
Days on Market
83
Cumulative Days on Market
79

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 4
Bathrooms: 3
Interior
Cooling
Central Air
Exterior Features
Lighting, Outdoor Living Area
Interior Features
Built In Features, Bedroom On Main Level, Closet Cabinetry, Eat In Kitchen, Living Dining Room, Split Bedrooms, Separate Shower
Sewer
Septic Tank
Heating
Solar
Flooring
Other, Tile
Appliances
Dryer, Dishwasher, Electric Range, Microwave, Oven, Refrigerator, Solar Hot Water, Trash Compactor, Washer
Construction
Year Built
Year Built: 2015
Home type
Single Family Residence
Construction Materials
Block
Roof
Metal
Utilities & Energy
Association Amenities
Boating
Water Source
Other
Pool Features
In Ground
Other Features
Community Features
Boat Facilities
Patio And Porch Features
Deck, Porch, Wrap Around
Lot Features
Five To Ten Acres, Fruit Trees
Subdivision Name
Off Shore Island
Price History
| Date | Event | Price |
|---|---|---|
08/12/2026 Source: | Off Market | $16,000,000 $6,944/sqft |
08/12/2026 Source: | Listed for Sale | $16,000,000 $6,944/sqft |
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