A beautifully reimagined home on one of Key Biscayne's most

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Home For Sale

669 S Mashta Dr

Key Biscayne, Florida 33149

Miami-Dade County

Community: Mashta Island

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$4,950,000 3 br, 4.0 bath 3382 sq. ft. 0.000 acres

A beautifully reimagined home on one of Key Biscayne's most desirable streets, South Mashta Drive. With its bold charcoal facade and distinctive presence, this residence stands out immediately while maintaining a warm island charm that makes it feel welcoming from the moment you arrive. Surrounded by mature trees and lush greenery, the setting offers both atmosphere and privacy.

Inside, vaulted ceilings and expansive windows fill the space with natural light, creating a soft and inviting ambiance. The great room features a stone fireplace, wide-plank wood floors, and a natural flow to the terrace and pool, bringing effortless connection between indoor comfort and outdoor enjoyment. Every space reflects a carefully curated, cozy feel that enhances the character of the home.

The renovated master bathroom offers calming finishes and a serene atmosphere. A private suite provides the perfect accommodation for guests or extended family. Set on a generous 10,000 sq ft lot and enhanced with impact windows, updated lighting, a newer roof, and thoughtful design details, this residence blends timeless appeal, warmth, and the unique island charm that defines Key Biscayne living.

A rare opportunity to own a home that feels both distinctive and deeply inviting, in one of the most coveted locations on the island.

Interior:
  • Bedrooms: 3
  • Baths: 4.0
  • Sq Ft: 3382
  • Year Built: 1960
  • Utilities: 
  • Fireplaces: 
  • Stories: 
  • Heat/AC: Central
  • Garage: Driveway
Exterior:
  • Lot Size: 0.000 acre
  • Lot Dimensions: 
  • View Types: 
  • Yard: 
  • Siding: Block
  • Roof: Other
  • Property Taxes: $22,036
  • MLS #: A11922444
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Contact Information:
Beach Home For Sale in Key Biscayne, Florida
Listing Agent: Miriam Poggio, One Sothebys International Realty, 305-538-9711, 305-538-9711 Listing Site, Listing Status: Active
Copyright © 2025 Miami Association of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 6914706
Viewed 4 times.
Updated: Dec 02, 2025

This property is a Home located at 669 S Mashta Dr, Key Biscayne, Florida 33149, and is currently For Sale at $4,950,000. This Home has 3 bedrooms, 4.0 baths, 3382 sq ft.