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591 N Mashta Drive, Key Biscayne, FL 33149
Sold
159 Days on Market
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$14,000,000

Sold · August 3, 2026

591 N Mashta Drive

Key Biscayne, FL 33149

MASHTA ISLAND A REPLAT OF

Explore the area: Key Biscayne homes for sale · Miami Dade County real estate

What this home sold for

Sold price
$14,000,000
Vs. list price
9.7% under
Days on market
159
Price per sq ft
$3,263

This 4-bedroom single-family home in ZIP 33149 sold for $14,000,000 on August 3, 2026. That was 9.7% below its final list price of $15,500,000. It first came on the market at $16,950,000, so the price was adjusted before it sold. It spent 159 days on the market.

4
Bedrooms
5
Bathrooms
4,290
Living Sq Ft
1960
Year Built

Listing Snapshot

Sold Price
$14,000,000
Sold On
August 3, 2026
Days on Site
159 Days
Bedrooms
4
Total Baths
5
Full Baths
4
Partial Baths
1
Living Area
4,290 sqft
Total Sq Ft
6,219 sqft
Lot Size
0.35 Acres
Year Built
1960
Property Type
Single Family
MLS #
A11924175
Property Tax
$112,793 (2025)
Subdivision
MASHTA ISLAND A REPLAT OF
County
Miami Dade
Status
Sold
Special Conditions
Listed As Is

About This Property

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.

MLS media link

General Features

Property Type
Single Family
Status
Sold
Year Built
1960
Property Condition
Resale
Number of Stories
1
Levels
One
Garage Spaces
2
Direction Faces
North
Lot Size (Acres)
0.35
Living Sq Ft
4,290
Total Sq Ft
6,219
Sewer
Septic Tank
Water Source
Public
Zoning
2001

Interior Features

Appliances
Dryer / Dishwasher / Electric Water Heater / Disposal / Gas Range / Microwave / Trash Compactor
Cooling
Central Air
Heating
Central
Flooring
Other / Wood
Interior Features
Bedroom On Main Level

Exterior Features

Construction
Block
Roof
Aluminum
Exterior Features
Outdoor Living Area
Private Pool
Yes
Pool Features
In Ground
Patio & Porch
Deck
Lot Features
Quarter To Half Acre Lot
Waterfront Features
Canal Front / None
Frontage Length
0.00 ft
View
Canal / Water

Community & HOA

Association Amenities
None
Financing Terms
Cash / Conventional / FHA / Va Loan
Restrictions
See Remarks
MLS Area
2520

Schools

Elementary School
Key Biscayne K-8
Middle School
Ponce De Leon
High School
Coral Gables

Browse Key Biscayne homes for sale across every neighborhood and price point in Miami-Dade. Available homes span single-family, townhome, and condo segments throughout the city. Key Biscayne includes gated golf communities, 55+ active adult neighborhoods, waterfront estates, and newer master-planned subdivisions. HOA fees vary by community type, from modest maintenance fees in non-gated subdivisions to higher dues in full-amenity country clubs. The city sits within Miami-Dade, offering access to South Florida beaches, major employment centers, and healthcare hubs. For current Miami-Dade market data, see Florida Realtors' monthly statistics. Browse the latest Key Biscayne listings below. Then connect with a Pure Equity agent to schedule a private showing.

Homes for Sale
141
Under Contract
28
Median List Price
$2,650,000
Median Sale Price (September)
$1,630,000
Median $/Sq Ft
$1,161
Avg Days on Market
130
View all 141 homes for sale in Key Biscayne →
How do I schedule a tour of 591 N Mashta Drive, Key Biscayne, FL 33149?
Use the Tour button on this listing to request a showing of 591 N Mashta Drive, Key Biscayne, FL 33149. Pick a day and time and choose an in-person or video-chat tour, and a Pure Equity agent will confirm your visit, often the same day.
Is 591 N Mashta Drive, Key Biscayne, FL 33149 still available?
591 N Mashta Drive, Key Biscayne, FL 33149 is currently listed as Sold, and has been on the market 159 days. Status updates directly from the MLS as homes go under contract, so ask us to confirm availability before you plan a visit.
How much is the monthly payment for 591 N Mashta Drive, Key Biscayne, FL 33149?
With 20% down ($3,100,000) on the $15,500,000 list price and a 30-year fixed loan at an illustrative 6.875% rate, the estimated principal & interest for 591 N Mashta Drive, Key Biscayne, FL 33149 is about $81,459/mo, before property taxes, insurance. Use the payment estimate on this page to adjust the down payment and rate.
How do I get pre-approved to buy 591 N Mashta Drive, Key Biscayne, FL 33149?
Getting pre-approved shows sellers you're a serious buyer and clarifies your true budget before you offer on 591 N Mashta Drive, Key Biscayne, FL 33149. Contact Pure Equity and we'll connect you with a trusted local lender to review your financing options, no obligation.
What schools serve 591 N Mashta Drive, Key Biscayne, FL 33149?
591 N Mashta Drive, Key Biscayne, FL 33149 is zoned for Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments and boundaries can change year to year, so confirm current zoning with the local school district before you buy.
Can I negotiate the price of 591 N Mashta Drive, Key Biscayne, FL 33149?
Often, yes. The right offer on 591 N Mashta Drive, Key Biscayne, FL 33149 depends on how it's priced against comparable single family sales in Key Biscayne, how long it's been listed, and how motivated the seller is. Pure Equity will run the comps and help you craft a competitive, well-supported offer.

Listing courtesy of EXP Realty LLC

Listing information is provided by BeachesMLS, Inc.and is deemed reliable but not guaranteed accurate by the MLS or Pure Equity. Information is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. © 2026 BeachesMLS, Inc. Last updated July 1, 2026.

$14,000,000

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Listed by Cristina D Anglemont De Tassigny, EXP Realty LLC

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