$5,799,000
Active
4d
$5,799,000
669 Mashta
Key Biscayne, FL 33149
4 bd3.5 ba3,382 sqft
Mashta Island
$4,950,00038 days on marketClosed
669 S Mashta Drive, Key Biscayne, FL 33149
Key Biscayne, FL 33149
3
Beds
3.5
Baths
3,382
Sq Ft
$1,464
$/Sq Ft
1960
Year Built
0.23 acres
Lot Size
Listing Snapshot
| List Price | $4,950,000 |
| Price / Sq Ft | $1,464 |
| Beds | 3 |
| Baths | 3.5 |
| Living Area | 3,382 sqft |
| Lot Size | 0.23 acres |
| Year Built | 1960 |
| Property Tax | $22,036/yr |
| HOA / Condo Fee | $0 / monthly |
| MLS # | 1147234452 |
| Status | Closed |
| Days on Market | 38 |
About This Home
A beautifully reimagined home on one of Key Biscayne’s most desirable streets, South Mashta Drive. With its bold charcoal façade 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.
General Features
- Property Type
- Residential
- Sub-type
- SingleFamilyResidence
- Stories
- 2
- Direction Faces
- West
- Parking
- Driveway
- Zoning
- 2001
- Utilities
- CableAvailable
- Subdivision
- MASHTA ISLAND
Interior Features
- Appliances
- Dryer,Dishwasher,ElectricWaterHeater,Disposal,GasRange,Microwave,Refrigerator,Washer
- Flooring
- Marble,Wood
- Heating
- Central
- Cooling
- CentralAir,Electric
- Interior Features
- Bathtub,DiningArea,SeparateFormalDiningRoom,SoakingTub,SeparateShower,UpperLevelPrimary
- Furnished
- Unfurnished
Exterior Features
- Construction
- Block
- Exterior Features
- Lighting,OutdoorLivingArea,OutdoorShower
- Roof
- Other
- Lot Features
- QuarterToHalfAcreLot
- Patio / Porch
- Patio
- Pool
- Yes
- Pool Features
- InGround
- View
- Garden
- Waterfront
- No
- Waterfront Features
- None
Community Features
- Association Amenities
- Other
- Association Dues
- $0 / monthly
- MLS Area
- 2520
Schools
ElementaryKey Biscayne K-8
MiddlePonce De Leon
HighCoral Gables
Map
Virtual Tour
View Virtual TourListed by Miriam Poggio · One Sotheby's International Realty
MLS# 1147234452 · BEACH
Information deemed reliable but not guaranteed. © 2026 BEACH.
MLS# 1147234452 · BEACH
Information deemed reliable but not guaranteed. © 2026 BEACH.
Interested in this home?
Schedule a showing or ask a question — buyer representation is free.
Estimate Your Payment
$
20% down · Loan: $3,960,000
%
Est. Monthly$28,851
Principal & Interest$27,014
Property Tax$1,836
Estimate only. Does not include insurance or PMI. Rate is illustrative — contact us for current rates.
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