669 S Mashta Dr, Key Biscayne, FL 33149
Local realty services provided by:First Service Realty ERA Powered
Listed by: miriam poggio, bautista carugati
Office: one sotheby's international realty
MLS#:A11922444
Source:SEFMLS
Price summary
- Price:$4,950,000
- Price per sq. ft.:$1,463.63
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.
Contact an agent
Home facts
- Year built:1960
- Listing ID #:A11922444
- Updated:January 14, 2026 at 08:41 AM
Rooms and interior
- Bedrooms:3
- Total bathrooms:4
- Full bathrooms:3
- Half bathrooms:1
- Living area:3,382 sq. ft.
Heating and cooling
- Cooling:Central Air, Electric
- Heating:Central
Structure and exterior
- Year built:1960
- Building area:3,382 sq. ft.
- Lot area:0.23 Acres
Schools
- High school:Coral Gables
- Middle school:Ponce De Leon
- Elementary school:Keybiscayne
Utilities
- Water:Public
- Sewer:Public Sewer
Finances and disclosures
- Price:$4,950,000
- Price per sq. ft.:$1,463.63
- Tax amount:$22,036 (2025)
New listings near 669 S Mashta Dr
- New
$785,000Active2 beds 2 baths1,105 sq. ft.77 Crandon Blvd #3C, Key Biscayne, FL 33149
MLS# A11946277Listed by: THE KEYES COMPANY - New
$1,150,000Active2 beds 2 baths1,260 sq. ft.155 Ocean Lane Dr #611, Key Biscayne, FL 33149
MLS# A11943186Listed by: DLS INTERNATIONAL REALTY - New
$2,250,000Active2 beds 2 baths1,975 sq. ft.201 Crandon Blvd #508, Key Biscayne, FL 33149
MLS# A11944684Listed by: VIEL & DE GUZMAN INC. - New
$3,850,000Active3 beds 3 baths2,605 sq. ft.791 Crandon Blvd #603, Key Biscayne, FL 33149
MLS# A11943754Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY - New
$11,500,000Active7 beds 6 baths5,008 sq. ft.111 Reef Ln, Key Biscayne, FL 33149
MLS# A11928646Listed by: COMPASS FLORIDA, LLC - New
$899,000Active3 beds 2 baths1,720 sq. ft.141 Crandon Blvd #338, Key Biscayne, FL 33149
MLS# A11937499Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY - New
$629,000Active1 beds 1 baths776 sq. ft.798 Crandon Blvd #55-B, Key Biscayne, FL 33149
MLS# A11939873Listed by: CAPITAL INTL REALTY LLC - Open Wed, 12 to 2:30pmNew
$4,275,000Active3 beds 5 baths2,500 sq. ft.781 Crandon Blvd #804, Key Biscayne, FL 33149
MLS# A11937481Listed by: COMPASS FLORIDA, LLC - New
$5,549,000Active3 beds 5 baths2,357 sq. ft.350 Ocean Dr #201N, Key Biscayne, FL 33149
MLS# A11941846Listed by: VANTAGE REAL ESTATE LLC - New
$19,800,000Active4 beds 6 baths8,240 sq. ft.100 Cape Florida Dr, Key Biscayne, FL 33149
MLS# A11934196Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY