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1 E Sister Rck, Marathon, FL 33050

Marathon
Local realty services provided by:CENTURY 21 Move With Us
1 E Sister Rck,Marathon, FL 33050
$16,000,000
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  • 4 Beds
  • 3 Baths
  • 2,304 sq. ft.
  • Single family
  • Active
Listed by: vladimir rochebrun, aaron rosenthal
Office: compass florida, llc.
MLS#:A12069701
Source:FL_RAMC

Price summary

  • Price:$16,000,000
  • Price per sq. ft.:$2,777.78

About this home

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

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Home facts

  • Year built:2015
  • Subdivision & Development:Off Shore Island
  • Listing ID #:A12069701
  • Added:61 day(s) ago
  • Updated:November 02, 2026 at 12:24 PM

Rooms and interior

  • Bedrooms:4
  • Total bathrooms:3
  • Full bathrooms:3
  • Dining Description:Living/Dining Room
  • Kitchen Description:Built-In Oven, Dishwasher, Electric Range, Microwave, Refrigerator
  • Bedroom Description:Closet Cabinetry
  • Living area:2,304 sq. ft.

Heating and cooling

  • Cooling:Central Air
  • Heating:Solar
  • Central air:Yes

Structure and exterior

  • Roof:Metal
  • Year built:2015
  • Building area:2,304 sq. ft.
  • Construction Materials:Block, Concrete
  • Exterior Features:Deck, Fruit Trees, Open, Porch, Storm/Security Shutters, Wrap Around

Finances and disclosures

  • Price:$16,000,000
  • Price per sq. ft.:$2,777.78
  • Tax amount:$25,482 (2025)

Features and amenities

  • Appliances:Built-In Oven, Dishwasher, Dryer, Electric Range, Microwave, Refrigerator, Solar Hot Water, Washer
  • Laundry features:Dryer, Washer
  • Amenities:Closet Cabinetry
  • Pool features:In Ground
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