BEAUTIFUL AND UNIQUE WATERFRONT HOME ON EXCLUSIVE MASHTA ISLAND, ON DESIRABLE NORTH MASHTA DR IN KEY BISCAYNE. ELEVATED AND VERY COMFORTABLE 4BR/4.5BA + MAID’S QUARTERS WITH APPROX. 4,290 SQ FT UNDER A/C, SITTING ON A LARGE AND PRIVATE 15,184 SQ FT LOT, IDEAL FOR ENJOYING WITH FAMILY AND FRIENDS.
APPROX. 50 FT DOCK WHERE THE OWNERS HAVE DOCKED BOATS OF AROUND 78 FT, WITH DEEP WATER OF ABOUT 8 FT EVEN AT LOW TIDE – A RARE TRUE DEEP-WATER ACCESS ON THE ISLAND. NORTH-FACING CANAL KEEPS THE HOUSE AND OUTDOOR AREAS PLEASANT AND COOLER ALL YEAR ROUND. EASY TO SHOW. BRING YOUR QUALIFIED BUYERS AND BEST OFFERS.
APPROX. 50 FT DOCK WHERE THE OWNERS HAVE DOCKED BOATS OF AROUND 78 FT, WITH DEEP WATER OF ABOUT 8 FT EVEN AT LOW TIDE – A RARE TRUE DEEP-WATER ACCESS ON THE ISLAND. NORTH-FACING CANAL KEEPS THE HOUSE AND OUTDOOR AREAS PLEASANT AND COOLER ALL YEAR ROUND. EASY TO SHOW. BRING YOUR QUALIFIED BUYERS AND BEST OFFERS.
Property Details
Price:
$15,500,000
MLS #:
A11924175
Status:
Active
Beds:
4
Baths:
4.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
MASHTA ISLAND A REPLAT OF
Neighborhood:
mashtaislandareplatof
Listed Date:
Nov 26, 2025
Finished Sq Ft:
4,290
Total Sq Ft:
6,219
Year Built:
1960
See this Listing
Schools
Elementary School:
Keybiscayne
Middle School:
Ponce De Leon
High School:
Coral Gables
Interior
Appliances
Trash Compactor, Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Gas Range
Bathrooms
4 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Other, Wood
Heating
Central
Interior Features
First Floor Entry, No Additional Rooms
Exterior
Architectural Style
Detached, One Story
Community Features
None
Construction Materials
Concrete Block With Brick
Covered Spaces
2
Direction Faces
North
Garage Spaces
2
Lot Features
1/4 To Less Than 1/2 Acre Lot
Parking Features
Other
Patio And Porch Features
Deck
Roof
Aluminum
View
Canal, Water
Waterfront Features
Ocean Access, Canal Front
Financial
Tax Year
2025
Taxes
$112,793
Map
Community
- Address591 N Mashta Dr Key Biscayne FL
- SubdivisionMASHTA ISLAND A REPLAT OF
- CityKey Biscayne
- CountyMiami-Dade County
- Zip Code33149
Market Summary
Current real estate data for Single Family in Key Biscayne as of Apr 21, 2026
58
Single Family Listed
176
Avg DOM
2,146
Avg $ / SqFt
$8,980,724
Avg List Price
Property Summary
- Located in the MASHTA ISLAND A REPLAT OF subdivision, 591 N Mashta Dr Key Biscayne FL is a Single Family for sale in Key Biscayne, FL, 33149. It is listed for $15,500,000 and features 4 beds, 5 baths, and has approximately 4,290 square feet of living space, and was originally constructed in 1960. The current price per square foot is $3,613. The average price per square foot for Single Family listings in Key Biscayne is $2,146. The average listing price for Single Family in Key Biscayne is $8,980,724.
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