Own an entire private island in the heart of the Florida Keys. Located just ¼ mile offshore from Marathon, East Sister Rock Island offers extraordinary privacy surrounded by turquoise waters, yet remains only minutes from the mainland.
The property encompasses approximately 6.5 acres, including approximately 5.8 acres of surrounding seabed that create an exceptional marine setting for snorkeling, swimming, kayaking, paddle boarding, fishing and exploring the crystal-clear waters of the Keys.
At the center of the island is a beautifully updated 3-bedroom, 2-bath main residence with a detached guest house, offering over 5,000 total SF of living and entertaining space. Recent interior renovations include a beautifully updated kitchen with gorgeous countertops and modern finishes. A 12-foot-wide wraparound veranda captures panoramic water views, Atlantic sunrises and spectacular Florida Keys sunsets.
Designed for the ultimate island lifestyle, the property features a waterfront pool and spa, tropical landscaping, multiple outdoor lounging and dining areas, and a 100-foot deep-water dock with ample dockage. World-class fishing, diving, snorkeling, boating and water-sports begin just outside your door.
East Sister Rock is equipped for self-sufficient island living with solar and wind power, battery storage, backup generator, desalination system and substantial freshwater cistern capacity. A private helipad provides an additional point of access.
Few properties offer this combination of privacy, accessibility, marine surroundings and established island infrastructure. Seller is also open to exploring select Joint Venture opportunities. Note the sale includes 99 E Ocean Drive on the mainland which has a private dock space.
Lot/land
$16,000,000
1 E Sister Rock Is, Monroe, FL 33050
4beds
6.44Acres
Unimproved Land
Built in 1980
6.44 Acres Lot
$-- Zestimate®
$6,944/sqft
$-- HOA
What's special
- 56 days
- 1,150
- 101
Zillow last checked:
Listing updated:
Listed by:
Vladimir Rochebrun 305-909-7080,
Compass Florida, LLC
Source: FLKMLS,MLS#: 620952
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 3
Bedroom 1
- Level: Main
Bedroom 2
- Level: Main
Bedroom 3
- Level: Main
Full bathroom
- Level: Main
Full bathroom
- Level: Main
Heating
- Has Heating (Unspecified Type)
Cooling
- Central Air
Appliances
- Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Stainless Steel Appliance(s)
Features
- Built-in Features, Granite Counters, Walk-in Closet(s), Bar
- Flooring: Tile, Wood
Interior area
- Total structure area: 2,304
- Total interior livable area: 2,304 sqft
Property
Features
- Patio & porch: Open Porch/Balcony, Deck
- Has private pool: Yes
- Pool features: In Ground, Decked
- On waterfront: Yes
Lot
- Size: 6.44 Acres
Details
- Additional structures: Guest House
- Parcel number: 00105590000000
- Zoning: RM-1 - Residential Medium - 1
- Other equipment: Generator, Satellite Dish
Community & HOA
Community
- Security: Other
- Subdivision: Misc Sombrero Area (50.0)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Monroe
Financial & listing details
- Price per square foot: $6,944/sqft
- Annual tax amount: $25,481
- Date on market: 8/12/2026
- Listing terms: Seller Finance Psble,Cash,Conventional,Other
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 8/12/2026 | Listed for sale | $16,000,000+36.8%$6,944/sqft |
Source: | ||
| 1/21/2022 | Listing removed | -- |
Source: BHHS EWM Realty Report a problem | ||
| 5/28/2021 | Listed for sale | $11,700,000$5,078/sqft |
Source: | ||
| 5/7/2021 | Listing removed | -- |
Source: BHHS EWM Realty Report a problem | ||
| 2/5/2021 | Listed for sale | $11,700,000$5,078/sqft |
Source: | ||
| 2/19/2020 | Listing removed | $9,000$4/sqft |
Source: CENTURY 21 Premier Elite Realty #A10769828 Report a problem | ||
| 12/30/2019 | Price change | $9,000+5.9%$4/sqft |
Source: CENTURY 21 Premier Elite Realty #A10769828 Report a problem | ||
| 11/13/2019 | Listed for rent | $8,500$4/sqft |
Source: CENTURY 21 Premier Elite Realty #A10769828 Report a problem | ||
Public tax history
Tax history is unavailable.

