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Active - House for sale
99 E Ocean, Key Colony Beach, FL
Facts & features
Why you’ll love it
Nestled amidst the azure waters of the Florida Keys lies the exquisite East Sister Rock, a lavish and sprawling private island encompassing a remarkable 1.37 acres of pristine paradise. This secluded haven redefines opulence, offering an unparalleled sanctuary just a quarter-mile from the world-renowned Sombrero Beach, while affording discerning buyers the privilege of being mere moments away from Marathon's exclusive private airport. East Sister Rock Island stands as a testament to sustainability, embodying a commitment to environmental harmony and responsible living. Picture the sheer luxury of arriving with your cherished friends and beloved family directly to your Helipad or envision the grandeur of arriving at your island escape in your yacht, the epitome of lavish maritime living. With an impressive 800 feet of enchanting water frontage, East Sister Rock Island beckons as an unparalleled opportunity for those who seek to own a piece of this secluded paradise or embark on a visionary redevelopment endeavor. East Sister Rock Island promises a lifestyle of opulence and unparalleled convenience, where your every desire can become a reality.
Listed by: Ember Duran • 786-644-3324 • The Agency Naples
Co-listed by: The Agency Naples
Source: Florida Gulf Coast MLS, MLS#: 223069118
Based on information as of Jun 01, 2026 at 03:21pm EDT.
Come see by yourself
Affordability
$85,544/mo
- Mortgage$83,433
- Property tax$2,111
- HOA fee
- Homeowners insurance
Beycome estimates only. Actual amounts and terms vary by lender and location.
Discover the neighborhood
Travel times
About NOT APPLICABLE
AI-generated overview for informational purposes only.
Please verify all details independently before relying on it.
Flood & climate risk
FEMA Flood Zone VE
In a FEMA Special Flood Hazard Area — flood insurance is typically required with a federally-backed mortgage.
More details
Base flood elevation: 11 ft. Source: FEMA National Flood Hazard Layer. Confirm on the FEMA Flood Map.
Fire
Storm
Air quality
Pollen
Disclaimer
No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements.
Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions.
Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided.
Copyright ©2026.
Based on information as of Jun 01, 2026 at 03:21pm EDT.
