About 1 E Sister Rck Island
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.
Features of 1 E Sister Rck Island
| MLS® # | A12069701 |
|---|---|
| USD | $16,000,000 |
| CAD | $22,072,480 |
| CNY | 元107,366,400 |
| EUR | €13,736,096 |
| GBP | £11,797,696 |
| RUB | ₽1,363,195,200 |
| Bedrooms | 4 |
| Bathrooms | 3.00 |
| Full Baths | 3 |
| Acres | 6.44 |
| Year Built | 2015 |
| Type | Residential |
| Sub-Type | Single Family Residence |
| Restrictions | No Restrictions |
| Status | Active |
| HOPA | No Hopa |
| Membership Equity | No |
Community Information
| Address | 1 E Sister Rck Island |
|---|---|
| Area | 2980 |
| Subdivision | Off Shore Island |
| City | Marathon |
| County | Monroe |
| State | FL |
| Zip Code | 33050 |
Amenities
| Amenities | Boating |
|---|---|
| View | Direct Ocean, Ocean |
| Is Waterfront | Yes |
| Waterfront | No Fixed Bridge, Ocean Access, Navigable Water, Ocean Front |
| Has Pool | Yes |
| Pool | In Ground |
| Boat Services | Private Dock,Deeded Dock |
| Subdivision Amenities | Boating |
| Guest House | Yes |
Interior
| Interior Features | Built-in Features, Bedroom Layout - Three Way Split, Closet Cabinetry |
|---|---|
| Appliances | Dryer, Dishwasher, Electric Range, Microwave, Oven, Other, Refrigerator, Solar Hot Water, Trash Compactor, Washer |
| Heating | Solar |
| Cooling | Central Air |
| Fireplace | Yes |
| # of Stories | 1 |
| Stories | One |
| Master Bedroom | Separate Shower, Bedroom On Entry Level |
Exterior
| Exterior Features | Lighting |
|---|---|
| Lot Description | Fruit Tree(s) |
| Roof | Metal |
| Construction | Block |
| Front Exposure | East |
Additional Information
| Date Listed | August 12th, 2026 |
|---|---|
| Days on Market | 28 |
| Zoning | 0S |
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
| Parcel ID | 00105590000000 |
Listing Details
| Office | Compass Florida, LLC |
|---|---|
| vladimir.rochebrun@compass.com |