46
41 More
  • Type
  • Single Family Residence
  • 5
  • Bedrooms
  • 5
  • Bathrooms
  • 2
  • Garages
  • 3620 Square Feet
  • Area Size
Residential Active

640 S Mashta Dr, Key Biscayne FL 33149 | Miami-Dade County | A11896953

  • $19,500,000

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
  • City: Key Biscayne
  • State/county: Miami-Dade County
  • Zip/Postal Code: 33149
  • Area: MASHTA ISLAND

Details

Updated on October 17, 2025 at 6:04 am
  • Property ID A11896953
  • Price $19,500,000
  • Property Size 3620 Square Feet
  • Bedrooms 5
  • Bathrooms 5
  • Garages 2
  • Year Built 1968
  • Type Single Family Residence
  • Property Status Residential

Additional details

  • ArchitecturalStyle Detached, Two Story
  • BathroomsFull 5
  • BathroomsHalf 0
  • BuildingAreaTotal 4990
  • BuildingAreaUnits Square Feet
  • BuildingName MASHTA ISLAND
  • CommunityFeatures None
  • ConstructionMaterials Concrete Block Construction, CBS Construction
  • ContractStatusChangeDate 2025-10-15
  • Cooling Central Air
  • CoveredSpaces 2
  • DaysOnMarket 2
  • DirectionFaces East
  • DoorFeatures High Impact Doors
  • ElementarySchool Keybiscayne
  • ExpirationDate 2026-04-15
  • Flooring Tile, Wood
  • FrontageLength 0
  • FrontageType Bay
  • Heating Central
  • HighSchool Coral Gables
  • Inclusions Private Dock, Unrestricted Salt Water Access
  • InternetAddressDisplayYN 1
  • InternetEntireListingDisplayYN 1
  • ListAOR A-Miami Association of REALTORS
  • ListAgentDirectPhone 305-799-9680
  • ListAgentEmail Fontecilla.c@gmail.com
  • ListAgentFullName Claudia Fontecilla
  • ListAgentKey dd7ef6744068a8b7bc72fc6e5bb5fccf
  • ListAgentMlsId 3190947
  • ListAgentOfficePhone 305-459-3875
  • ListAgentStateLicense 3190947
  • ListOfficeKey fd4df9a6848e8ce769b67cbd0f85f630
  • ListOfficeMlsId DLSI01
  • ListOfficeName DLS International Realty
  • ListOfficePhone 305-459-3875
  • ListingAgreement Exclusive Right To Sell
  • ListingContractDate 2025-10-15
  • ListingKey 5ac3d6c7dee170a85d415f4cd1f0f36a
  • ListingTerms All Cash, Conventional
  • LotFeatures Less Than 1/4 Acre Lot
  • LotSizeSquareFeet 15000
  • MLSAreaMajor Mashta Island
  • MajorChangeTimestamp October 16, 2025 at 11:04pm
  • MajorChangeType New
  • MiddleOrJuniorSchool Ponce De Leon
  • MlsStatus Active
  • ModificationTimestamp October 17, 2025 at 04:00am
  • OnMarketDate 2025-10-15
  • OriginalEntryTimestamp October 16, 2025 at 11:04pm
  • OriginalListPrice 19500000
  • OriginatingSystemID miamire
  • OriginatingSystemKey miamire
  • OriginatingSystemName Miami Association of REALTORS®
  • OtherExpense 0
  • ParcelNumber 24-52-05-008-0320
  • ParkingFeatures Circular Driveway, Covered, Driveway
  • PhotosChangeTimestamp October 16, 2025 at 11:06pm
  • PhotosCount 46
  • PoolFeatures In Ground
  • Possession Funding
  • PostalCodePlus4 1735
  • PriceChangeTimestamp October 15, 2025 at 09:57pm
  • PublicSurveyRange 52
  • PublicSurveySection 5
  • PublicSurveyTownship 52
  • Roof Flat Tile
  • RoomsTotal 0
  • Sewer Public Sewer
  • ShowingInstructions Appointment Only
  • SourceSystemKey 421910663
  • StateOrProvince FL
  • StatusChangeTimestamp October 16, 2025 at 11:04pm
  • StreetDirPrefix S
  • StreetName Mashta Dr
  • StreetNumber 640
  • StreetNumberNumeric 640
  • StructureType House
  • 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.
  • TaxAnnualAmount 81859
  • TaxLegalDescription MASHTA ISLAND PB 60-93 LOT 9 BLK 3 LOT SIZE 100.000 X 150 OR 18642-3922 0599 1
  • TaxYear 2024
  • View Bay, Ocean
  • WaterSource Municipal Water
  • WaterfrontFeatures Ocean Access, Ocean Front
  • YearBuiltDetails Resale
  • Zoning 2001

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Christopher Lazaro

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