669 S Mashta Dr

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.

3
beds

4
baths

3,382 Sq.Ft. LIVING AREA

10,000 Sq.Ft. lot

Miriam Poggio

title Global Real Estate Advisor
PHONE 1786-356-2610
EMAIL [email protected]

Bautista Carugati

title Global Real Estate Advisor
PHONE 1305-333-3016
EMAIL [email protected]

Features & Amenities

Interior

total bedrooms3
Total bathrooms4
full bathrooms3
half bathroom1
Flooring Marble, Wood
APPLIANCES Bottled Gas, Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Gas Range, Refrigerator, Washer
other interior Features First Floor Entry, Den/Library/Office

Area & Lot

Status Sold
Date Sold February 4, 2026
Living Area3,382 Sq.Ft.
Total Area3,382 Sq.Ft.
Lot Area10,000 Sq.Ft.
MLS® IDA11922444
TypeResidential
YEAR BUILT1960
NeighborhoodKey Biscayne
Architecture StylesDetached, Two Story
View DescriptionGarden
Elementary SchoolKeybiscayne
Middle SchoolPonce De Leon
High SchoolCoral Gables

Exterior

water SourceMunicipal Water
PoolIn Ground
roofOther
lot features1/4 To Less Than 1/2 Acre Lot
parkingDriveway
HEAT TYPECentral
AIR CONDITIONINGCentral Air, Electric
sewerPublic Sewer
other exterior FeaturesLighting, Outdoor Shower

Financial

Sales Price$4,750,000
Real Estate Tax $22,036/yr
Zoning 2001

Key Biscayne

Once home, residents of Key Biscayne real estate feel the big-city bustle melt away. An oasis. Luxury real estate.

Explore

Work With Miriam

A listing with Miriam ensures a listing displayed everywhere. Reliability, empathy and astuteness are the fundamentals for any recipe of success. With Miriam the final dish is excellence.

$4,750,000