Mashta Island 640 S Mashta Dr Sold, A11611809
640 S Mashta Dr, Key Biscayne, FL 33149
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$12,375,000
sold
5 beds
5 baths
3,620 sf
/sf
$3,419.00
| Monthly cost | |
| Maintenance per month | $0.000000/ |
| Taxes per year | $80,770 |
| Waterfront | Yes |
| Type | Single Family |
| MLS | A11611809 |
Listing Description
Welcome to Heaven on Earth! Fish off your own dock and enjoy stunning sunset views from 100’ of direct Biscayne Bay waterfront in this iconic trophy property on the quiet side of Key Biscayne’s exclusive Mashta Island. Move in, renovate or build yo...
Listing information courtesy of Graber Realty Group LLC. Source: A-Miami Association of REALTORS. Data updated 08/11/2026.
Facts and Features
Type
Single Family
Year Built
1968
Heating
Other
Cooling
Central Air
Parking
Circular Driveway
Swimming pool
Yes
HOA
$0.000000/
Days on market
664
Status
Closed
Features
Bedrooms
Beds: 5
Bedroom Description: Primary Bedroom Ground Level, Sitting Area - Primary Bedroom
Design: Detached,Two Story
Rooms Description:
Great Room, Media RoomHeating:
OtherCooling:
Central AirEquipment Appliances:
Dishwasher, Dryer, Electric Water Heater, Electric Range, Refrigerator, WasherWindows Treatment:
Complete Impact Glass, Impact GlassFlooring
Floor Description: Tile, Wood
Interior features:
First Floor Entry, Split Bedroom, Walk-In Closet(s), Great Room, Media RoomExterior features:
LightingWater Access:
Private Dock, Unrestricted Salt Water AccessLot Description
Lot: 15,000 sqft
Lot depth: 0 ft
Lot frontage: 0 ft
Building
Parking
Parking: Attached garage
Parking description: Circular Driveway, Covered, Driveway
Construction
Construction Type:
Concrete Block Construction, CBS ConstructionListing Type:
Exclusive AgencyProperty Type:
ResidentialStyle:
HouseRoof Description:
Flat TileFinance
Taxes:
$80,770HOA
HOA Fee: $0.000000//mo
Estimated monthly cost
Use this montgage calculator to calculate your monthly montgage payments quickly and easily
Mashta Island Overview
Avg. days on market
15
SF range
2,255-2,255sf
Price range for Sale
$18.5m
Price range for Rent
$31.5k
Median Sale price per sqft
$8.2k
Median Rent price per sqft
$9.8
Avg. Sale price
$18.5m
Avg. Rent price
$31.5k
