640 S Mashta Dr, Key Biscayne FL 33149 | Miami-Dade County | A11990382
- $16,800,000
- Single Family Residence
- 4
- 4
- 2
- 3620 Square Feet
640 S Mashta Dr, Key Biscayne FL 33149 | Miami-Dade County | A11990382
- $16,800,000
Description
Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate
Address
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Address: Mashta Dr
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City: Key Biscayne
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State/county: Miami-Dade County
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Zip/Postal Code: 33149
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Area: MASHTA ISLAND
Details
Updated on April 6, 2026 at 2:34 am-
Property ID A11990382
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Price $16,800,000
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Property Size 3620 Square Feet
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Bedrooms 4
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Bathrooms 4
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Garages 2
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Year Built 1968
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Type Single Family Residence
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Property Status Residential
Additional details
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ArchitecturalStyle Attached, Other
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BathroomsFull 4
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BathroomsHalf 0
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BuildingAreaTotal 4990
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BuildingAreaUnits Square Feet
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BuildingName MASHTA ISLAND
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CommunityFeatures Public Road
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ConstructionMaterials Concrete Block Construction
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ContractStatusChangeDate 2026-04-02
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Cooling Central Air
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CoveredSpaces 2
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DaysOnMarket 3
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DirectionFaces East
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ElementarySchool Keybiscayne
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EntryLocation Foyer
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ExpirationDate 2026-10-02
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Flooring Other
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FrontageLength 100
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Heating Other
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HighSchool Coral Gables
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Inclusions Dock Available
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InternetAddressDisplayYN 1
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InternetEntireListingDisplayYN 1
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ListAOR A-Miami Association of REALTORS
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ListAgentDirectPhone 305-244-7493
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ListingTerms All Cash, Conventional
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LotFeatures Less Than 1/4 Acre Lot
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LotSizeSquareFeet 15000
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MLSAreaMajor Mashta Island
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MajorChangeTimestamp April 2, 2026 at 10:08pm
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MajorChangeType New
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MiddleOrJuniorSchool Ponce De Leon
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MlsStatus Active
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ModificationTimestamp April 5, 2026 at 08:50pm
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OnMarketDate 2026-04-02
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OriginalEntryTimestamp April 2, 2026 at 10:08pm
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OriginalListPrice 16800000
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OriginatingSystemID miamire
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OriginatingSystemKey miamire
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OriginatingSystemName Miami Association of REALTORS®
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OtherEquipment Automatic Garage Door Opener
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OtherExpense 0
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ParcelNumber 24-52-05-008-0320
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ParkingFeatures Driveway, Guest
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PetsAllowed Dogs OK
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PhotosChangeTimestamp April 5, 2026 at 08:54pm
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PhotosCount 38
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PoolFeatures In Ground
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PostalCodePlus4 1735
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PriceChangeTimestamp March 27, 2026 at 03:17am
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PublicSurveyRange 52
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PublicSurveySection 5
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PublicSurveyTownship 52
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Roof Barrel Roof
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RoomsTotal 0
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Sewer Public Sewer
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ShowingContactType Agent
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ShowingInstructions Call Listing Agent
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SourceSystemKey 446223578
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StateOrProvince FL
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StatusChangeTimestamp April 2, 2026 at 10:08pm
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StreetDirPrefix S
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StreetName Mashta Dr
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StreetNumber 640
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StreetNumberNumeric 640
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StructureType House
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SyndicationRemarks Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15, 000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate
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TaxAnnualAmount 155651
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TaxLegalDescription MASHTA ISLAND PB 60-93 LOT 9 BLK 3 LOT SIZE 100.000 X 150 OR 18642-3922 0599 1
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TaxYear 2025
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View Bay, Garden
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WaterSource Municipal Water
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WaterfrontFeatures Ocean Access, Ocean Front
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YearBuiltDetails Resale
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Zoning 2001
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