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1 E Sister Rck Is, Marathon FL 33050

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$16,000,000

4

3

2,304 SF

$6,944

 
PROPERTY TYPESingle Family Residence
Lot Size280,628 SF
YEAR BUILT2015
WATERFRONTYes
STYLEDetached,One Story
PARKINGYes
SWIMMING POOLIn Ground
STATUSActive

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    Property 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.

    LIST PRICE $16,000,000
    PRICE CHANGE0%
    BEDS 4
    BATHS 3
    1/2 BATHS 0
    LIVING SIZE 2,304 SF
    PRICE SF$6,944
    YEAR BUILT 2015
    WATERFRONT Yes
    VIEWOcean,Direct Ocean
    SWIMMING POOL In Ground
    STYLE Detached,One Story
    CONSTRUCTION Concrete Block Construction
    PARKING Yes
    PARKING SPACES
    FLOORING TYPE No
    MLS A12069701
    PROPERTY TYPESingle Family Residence
    STATUS Active
    DATE LISTED 2026-08-12
    DAYS ON MARKET 10
    FURNISHED
    Pets Allowed No
    CITY Marathon
    ZIP33050
    STATE FL
    SUBDIVISION Off Shore Island
    HOA FEES $0
    TAXES $25,482
    TAXES YEAR 2025

    ROAD VIEW

    SATELLITE VIEW

    bird’s eye view

    STREET VIEW

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