Login

1 E Sister Rck Is, Marathon, FL 33050

Marathon
Local realty services provided by:CENTURY 21 World Connection
1 E Sister Rck Is,Marathon, FL 33050
$16,000,000
Virtual Tour
  • 4 Beds
  • 3 Baths
  • 2,304 sq. ft.
  • Single family
  • Active
Listed by: vladimir rochebrun, aaron rosenthal
Office: compass florida, llc.305-909-7080
MLS#:A12069701
Source:SEFMLS

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...

Contact an agent

contact an agent

Yes, I would like more information. Please use and/or share my information with an independent agent affiliated with the CENTURY 21®  brand to contact me about my real estate needs. By clicking Send message, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If an independent agent affiliated with the CENTURY 21®  brand is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE® , Coldwell Banker® , Corcoran® , ERA® , Sotheby's International Realty® ). I acknowledge that I have read and agree to theTerms of useandPrivacy notice

Home facts

  • Year built:2015
  • Subdivision & Development:Off Shore Island
  • Listing ID #:A12069701
  • Updated:October 29, 2026 at 10:07 AM

Rooms and interior

  • Bedrooms:4
  • Total bathrooms:3
  • Full bathrooms:3
  • Flooring:Tile
  • Dining Description:Living/Dining Room
  • Kitchen Description:Built In Oven, Dishwasher, Electric Range, Microwave, Refrigerator, Trash Compactor
  • Bedroom Description:Split Bedroom
  • 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.
  • Lot area:6.44 Acres
  • Lot Features:Flood Zone
  • Architectural Style:Detached, One Story
  • Construction Materials:Block
  • Exterior Features:Deck, Fruit Trees, Open, Porch, Security High Impact Doors, Storm Security Shutters, Wrap Around
  • Levels:1 Story

Utilities

  • Sewer:Septic Tank

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, Satellite Dish, Solar Hot Water, Trash Compactor, Washer
  • Laundry features:Dryer, Washer
  • Amenities:Closet Cabinetry, Fireplace, Impact Glass Windows, Lighting
  • Pool features:In Ground, Pool
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

New listings near 1 E Sister Rck Is