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Mashta Island Houses Sold

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Mashta Island, 669 S Mashta Dr, Key Biscayne, Florida 33149, image 1
Sold - Feb 04, 2026
$4,750,000
  • 3 Beds
  • 31/2 Baths
  • 3,382 SqFt
  • $1,404/SqFt
House sold in Mashta Island
669 S Mashta Dr, Key Biscayne, FL 33149
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.
Mashta Island, 551 S Mashta Dr, Key Biscayne, Florida 33149, image 1
Sold - Jul 10, 2025
$4,700,000
  • 3 Beds
  • 21/2 Baths
  • 2,886 SqFt
  • $1,629/SqFt
House sold in Mashta Island
551 S Mashta Dr, Key Biscayne, FL 33149
Your tropical private retreat on exclusive mashta island. This 6 bed / 5 bath, 3, 245 sf mediterranean villa sits on a spacious 10, 000 sf lot with lush landscaping, a resort-style pool, and a private cabana guest suite. Interiors with soaring 10-foot ceilings flow seamlessly to the outdoors, perfect for entertaining and relaxed island living. Intentionally designed with two primary suites (first floor and second floor) enhancing comfort and privacy. The chef’s kitchen features a gas stove, cooking island, and subzero refrigerator. Enjoy private balconies, a circular driveway, an attached 2-car garage with laundry, covered porches, and generous storage. Key biscayne offers the ultimate family lifestyle with world-class amenities and a true sense of community.
Mashta Island, 510 S Mashta Dr, Key Biscayne, Florida 33149, image 1
Sold - Jul 08, 2025
$18,921,250
  • 3 Beds
  • 41/2 Baths
  • 5,226 SqFt
  • $3,621/SqFt
House sold in Mashta Island
510 S Mashta Dr, Key Biscayne, FL 33149
Waterfront. Located on mashta island and island within an island in key biscayne. The minute you walk into the house the most breathtaking biscayne bay views welcomes you. Breathtaking sunsets.Oversized lot:18, 300-sq.Ft. 2 story home with excellent floor plan, large living room area w/double height ceilings, family room adjacent to kitchen area. Large dining area w/direct water views & access to pool area. 2nd floor: master suite & 3 additional bedrooms en suite master suite w/balcony & large walk in closet .1st floor guest suite.Water views from every room, dining & reception area.Gazebo by the water.Open kitchen. Staff area.Powder room.Oversized pool w/cabana room &cabana bath.Double access ( service access &main access) lush garden offers total privacy . Enclosed two car garage.
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Mashta Island, 669 S Mashta Dr, Key Biscayne, Florida 33149, image 1
Sold - Jun 27, 2025
$3,465,000 $505K
  • 3 Beds
  • 31/2 Baths
  • 3,382 SqFt
  • $1,025/SqFt
House sold in Mashta Island
669 S Mashta Dr, Key Biscayne, FL 33149
A rare chance to own an exceptional florida style home on prestigious mashta island. This residence captures the florida lifestyle with vaulted ceilings and an open floor plan blending indoor and outdoor spaces.Sliding pocket doors invite natural light and open to a large covered terrace and mosaic pool, ideal for entertaining or relaxing.The home includes a spacious eat-in kitchen, cozy library, and a coral-stone fireplace. Renovated bathrooms and new wood walnut floors enhance its modern appeal. A separate private living area with a bedroom and bathroom offers flexibility for guests or family. Located on a quiet street. Oversized 10, 000.Sqft lot, new impact windows, a two-year-old roof, custom built-ins that add style and function.Tasteful updates and classic florida charm.
Mashta Island, 660 S Mashta Dr, Key Biscayne, Florida 33149, image 1
Sold - Mar 28, 2025
$13,800,000 $2M
  • 5 Beds
  • 51/2 Baths
  • 5,043 SqFt
  • $2,736/SqFt
House sold in Mashta Island
660 S Mashta Dr, Key Biscayne, FL 33149
Don't miss this opportunity to own a rarely available wide bay front home on s mashta dr featuring 100 ft of water frontage & unobstructed views. This large 2 story home has an eat in kitchen, 3 door wine chiller & separate walk-in pantry/storage area. An adjacent covered patio is separated from the kitchen by multi sliding impact doors that open & stack against each other expanding your entertaining space & bringing the outside in. The primary br has 2 full baths & 3 walk-in closets. There are an additional 4 br's & 4 baths on the first floor, one of which has a kitchenette & a separate entrance. A mosaic staircase leads to 2 additional bedrooms w/ensuite baths & a large shared balcony additional amenities include heated pool, cabana bath & an expansive patio for entertaining.
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Scores
Walk Score®
Car-Dependent. Almost all errands require a car.
7

100
Transit Score®
No data.
N/A
Bike Score®
Somewhat Bikeable. Minimal bike infrastructure.
36

100
Sound Score®
Bearable noise.
84

100
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