
MIAMI REALTORS® MLS1 E Sister Rck Island, Marathon, FL 33050
- Beds
- 4
- Baths
- 3
- Sqft
- 2,304
- Home type
- Single Family Residence
- Year built
- 2015
- Lot size
- 280,526 sqft
- Price / sqft
- $6,944
- HOA
- $0/mo
- Community
- Off Shore Island
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.
Listing activity
- Days on market
- 34
- Listed
- Aug 12, 2026
- MLS listing updated
- Sep 15, 2026
- Feed last checked
- 10 minutes ago
Listed by Vladimir Rochebrun · Compass Florida, LLC
Map
Map location is based on MLS-supplied coordinates. Verify the location before relying on it.
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms
- 4
- Bathrooms
- 3
- Bathrooms (decimal)
- 3
- Full bathrooms
- 3
- Half bathrooms
- 0
Rooms & features
- Rooms
- 1
- Interior features
- Bedroom Layout - Three Way Split, Built-in Features, Closet Cabinetry
- Flooring
- Tile, Other
- Appliances
- Dishwasher, Dryer, Electric Range, Microwave, Oven, Refrigerator, Solar Hot Water, Trash Compactor, Washer, Other
- Fireplace
- Yes
- Other equipment
- Satellite Dish, Other
Heating & cooling
- Heating
- Solar
- Cooling
- Central Air
Property
Parking
- Garage spaces
- 0
- Carport spaces
- 0
- Covered spaces
- 0
Exterior
- Stories
- 1
- Building area
- 5,760 sqft
- Entry level
- 1
- Patio & porch
- Porch - Wrap Around, Porch - Open, Porch, Deck
- Exterior features
- Lighting
- Pool
- Yes
- Pool features
- In Ground
- View
- Ocean, Direct Ocean
- Waterfront
- No Fixed Bridge, Ocean Access, Navigable Water, Ocean
- Waterfront property
- Yes
Lot
- Lot size
- 280,526 sqft
- Lot size (acres)
- 6.44 acres
- Lot features
- Fruit Tree(s)
- Zoning
- 0S
Construction
Type & style
- Home type
- Single Family Residence
- Year built
- 2015
Materials
- Construction
- Block
- Roof
- Metal
- Levels
- One
- Faces
- East
Utilities & green energy
Utilities
- Sewer
- Septic Tank
- Water
- Other
Community & HOA
Community
- Subdivision
- Off Shore Island
- MLS area
- 2980
- MLS subarea
- Other
- 55+ community
- No
Association
- Has association
- No
- Estimated monthly dues
- $0
- Amenities
- Boating
Lease details
Not reported by the listing source.
Location
Area details
- City
- Marathon
- County
- Monroe
- ZIP code
- 33050
Manufactured home details
Not reported by the listing source.
Financial & listing details
Listing
- MLS number
- A12069701
- Possession
- Negotiable
- Original list price
- $16,000,000
- Parcel number
- 00105590000000
- Annual property tax
- $25,482
- Tax year
- 2025
- Tax legal description
- 23 66 32 LOT 2 (US PATENT 1186533) EAST SISTER ROCK AND ADJACENT BAY BOTTOM G71-513(II DEED 20369) OR374-139/40 OR752-1640 OR752-1642 OR755-
Additional MLS details
Reported by the listing source
- Association Amenities
- Boating
- Association
- No
- Bathrooms Total Decimal
- 3
- Bathrooms Total Integer
- 3
- Building Area Total
- 5760
- Construction Materials
- Block
- County Or Parish
- Monroe
- Days On Market
- 34
- Direction Faces
- East
- List Price
- 16000000
- Living Area
- 2304
- Lot Size Acres
- 6.44
- Lot Size Area
- 280628
- MLSArea Major
- 2980
- MLSArea Minor
- Other
- Mls Status
- Active
- On Market Date
- 2026-08-12
- Patio And Porch Features
- Porch - Wrap Around, Porch - Open, Porch, Deck
- Postal Code
- 33050
- Property Sub Type
- Single Family Residence
- Property Type
- Residential
- Rooms Total
- 1
- Senior Community
- No
- Standard Status
- Active
- State Or Province
- FL
- Status Change Timestamp
- 2026-08-12T04:00:00Z
- Stories Total
- 1
- Subdivision Name
- Off Shore Island
- Water Source
- Other
- Waterfront Features
- No Fixed Bridge, Ocean Access, Navigable Water, Ocean
- Tax Annual Amount
- 25482
- Bathrooms Full
- 3
- Pool Private
- Yes
- Bedrooms Total
- 4
- Bathrooms Half
- 0
Market value
Price history
| Date | Event | Price |
|---|---|---|
| Aug 12, 2026 | ListedMIAMI REALTORS® MLS | $16,000,000$6,944/sqft |
Public tax history
| Year | Property taxes | Assessment |
|---|---|---|
| 2025 | $25,482 | — |
Payment calculator
- Principal & interest
- $83,021
- Property taxes
- $2,124
- Insurance
- $8,000
- Association dues
- $0
Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.
Neighborhood
Area
Off Shore IslandMarathon · Monroe County · 33050
Climate risk
—No licensed climate-risk source is connected.
Nearby schools
Not reported by the listing source.
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.Nearby homes
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