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House in Key Biscayne, FL 33149
Mashta Island, 551 S Mashta Dr

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Closed
$5.5M14.5%
$4,700,000
Estimate Payment
6
Beds
5
Baths
3,245
SqFt
Status
Sold - Jul 10, 2025
Parking
2
Size
3,245 SqFt (301 m2)
Price
$1,448/SqFt ($15,590/m2)
Type
House
Built
1961
MLS Number
A11776724
View
Garden
On Site
518 Days
Updated
18 Days ago
Page Views
0
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.

Features

Bedrooms
  • Bedrooms: 6
Bathrooms
  • Bathrooms: 5
  • Half Bathrooms: No info
Exterior and Lot Features
  • Exterior Features: Balcony, Fence, Lighting, Patio
  • View: Garden
Interior, Heating and Cooling
  • Interior Features: BedroomOnMainLevel, BreakfastArea, DualSinks, EatInKitchen, FirstFloorEntry, Fireplace, GardenTubRomanTub, KitchenIsland, MainLevelPrimary, Pantry, SplitBedrooms, Skylights, SeparateShower, UpperLevelPrimary, WalkInClosets
  • Equipment / Appliances: Dryer, Dishwasher, Disposal, GasRange, Refrigerator, Washer
  • Heating Description: Central
  • Cooling Description: CentralAir
Building and Construction
  • Floor Description: Marble
  • Windows/Treatment: Blinds, ImpactGlass, Skylights
  • Year Built: 1961
  • Year Built Description: Resale
  • Style: Detached, Mediterranean, TwoStory
Waterfront and Water Access
  • Waterfront Frontage: No info
School Information
    Other Property Info
    • Garage: 2
    • Listing Date: 2025-04-15T14:27:37.000-00:00
    • Directions: South
    • Pets Allowed: No,Yes
    Taxes, Fees & More
    • Taxes: 50906
    • Parking Description: Attached, Covered, Driveway, Garage, Guest, GarageDoorOpener

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    Price History

    Current
    $4.7M
    High
    $5.5M
    Low
    $4.7M
    Total Change
    -14.5%
    $5.6M$5.1M$4.6MApr 25Apr 25Jul 25
    Date
    Event
    Price
    Change
    Price Per
    07/10/2025
    Sold
    $4.7M
    0%
    $1,448 ft2
    $15,590 m2
    04/03/2025
    Price Reduced
    $4.7M
    -14.47%
    $1,448 ft2
    $15,590 m2
    04/03/2025
    Listed
    $5.5M
     
    $1,693 ft2
    $18,227 m2
    07/10/2025
    $4.7M
    Event
    Sold
    Change
    0%
    Price Per
    $1,448 ft2
    $15,590 m2
    04/03/2025
    $4.7M
    Event
    Price Reduced
    Change
    -14.47%
    Price Per
    $1,448 ft2
    $15,590 m2
    04/03/2025
    $5.5M
    Event
    Listed
    Price Per
    $1,693 ft2
    $18,227 m2
    Price per square foot and days on website are not provided values and are calculated by Subdivisions.
    Listed by Joan Bruggink • One Sotheby's International Re • Buyer Agency Compensation .

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    Scores

    Walk Score®
    Car-Dependent. Almost all errands require a car
    8
    100
    Bike Score®
    Somewhat Bikeable. Minimal bike infrastructure
    36
    100
    Sound Score®
    Bearable noise
    80
    100
    Airport Score
    Close to airports. Noticeable airport activity
    0
    100
    Traffic Score
    Congested area. Frequent traffic delays
    24
    100
    Local Score
    Limited local amenities nearby
    0
    100
    Community Snapshot
    4 – 5 BR
    Bedrooms
    $6.4M – $19.9M
    Price Tier
    2,255 - 10,820
    SqFt Range
    1972
    Year Build
    1
    Total Floors
    71
    Total Units

    Key Biscayne
    Ultra Luxury
     Ultra Luxury Homes & Condos

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    The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity' Program of the Regional Multiple Listing Service of Miami Dade, Broward, Palm Beach, Collier and Lee Counties. Not all listings found on this site are necessarily listed through Subdivisions.com. Real estate listings held by brokerage firms other than Subdivisions.com are marked with the Broker Reciprocity' logo or the Broker Reciprocity' thumbnail logo (little black house) and detailed information about them includes the name of the listing brokers.

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