571 S Mashta Dr

Key Biscayne, FL
$ 6,350,000 Beds 4 Baths 3 Sq 2,761 Virtual Tour
Monthly Estimate* How much can I afford?

Enjoy your own paradise in the paradise—an exceptional, move-in-ready residence on prestigious Mashta Island, one of Key Biscayne's most exclusive and tranquil enclaves. Beautifully remodeled and designed for relaxed yet sophisticated island living, this home offers exceptional indoor and outdoor spaces to enjoy with family and friends. Outdoor living takes center stage with a heated pool and spectacular covered entertainment area featuring a custom BBQ, grill, sink, granite counters and seating for up to 12 guests—the perfect setting for weekend gatherings, celebrations and year-round enjoyment of the Key Biscayne lifestyle. Bright, inviting interiors feature a spacious open layout that seamlessly connects the living, dining and kitchen areas. The impressive chef's kitchen is equipped with premium Viking appliances, generous cooking island and abundant granite counter space. Marble flooring enhances the main living areas, while warm wood floors add character to the private bedroom spaces. The primary suite opens directly to the pool area and features a large walk-in closet and a luxurious bath with steam shower. The property is on a 10,000 SF lot with an ample circular driveway, covered garage for two vehicles and a large additional side parking.

Active

  • Price
  • $ 6,350,000
  • City
  • Key Biscayne
  • Bedrooms
  • 4
  • Full Bathrooms
  • 3
  • County
  • Miami-Dade
  • Half Bathrooms
  • 0
  • Area
  • 52
  • Lot Size
  • Zip
  • 33149
  • Sqr Footage
  • 2,761
  • Year Built
  • 1964
  • Taxes
  • $ 55539
  • Style
  • MLS#
  • A12076783
Listed By: This listing is courtesy of HR 19 Realty LLC
Data Source: Southeast Florida MLS (SEFMLS)

Features

General

Sewer Public Sewer
Heating Central,Electric
Cooling Central Air,Electric
Possession Close Of Escrow
Roof Shingle
Appliances Built-In Oven,Dryer,Dishwasher,Electric Range,Freezer,Disposal,Gas Range,Gas Water Heater,Ice Maker,Microwave,Refrigerator,Wine Cooler,Washer
Garage Spaces 2
Patio/Porch Features Deck,Open,Porch
Architectural Style Detached,One Story
Pool Features Concrete,Pool Equipment,Pool
Restrictions See Remarks
Construction Materials Block
Pets Allowed Cats OK,Dogs OK,Yes
Year Built 1964
View None
Stories Count 1
Property Subtype Single Family Residence
Tax Year 2025
Ownership Corporation
County Miami-Dade
Property Type Residential
Attached Garage true
Subdivision Name MASHTA ISLAND A REPLAT OF
Facing Direction Southwest
Garage Y/N true
Full Baths 3
Special Listing Conditions Listed As-Is
Status Active
High School Mast Academy
City Key Biscayne
Senior Community Y/N false
Zoning Description 2001
MLS Area 52
Lot Size Units Square Feet
Lot Size Square Feet 10000
Listing Terms Cash,Conventional
Elementary School Keybiscayne
Year Built Details Effective Year Built
Tax Annual Amount 55539
Middle/Junior High School Ponce De Leon
Lease Considered Y/N false
Virtual Tour https://www.propertypanorama.com/instaview/mia/A12076783
Standard Status Active
Occupancy Type Owner
Property Sub Type Additional Single Family Residence
PostalCity Key Biscayne
Legal Description 5-6 55 42 MASHTA ISLAND A REPLAT OF TRS A B & C PB 65-65 LOT 17 BLK 4 LOT SIZE 100.000 X 100 OR 16975-0825 1095 1 COC 24379-0228 03 2006 1

Interior Features

Interior Amenities Breakfast Bar,Built-in Features,Bedroom on Main Level,Closet Cabinetry,Dining Area,Separate/Formal Dining Room,First Floor Entry,Fireplace,Kitchen Island,Main Level Primary,Sitting Area in Primary,Shower Only,Bar,Walk-In Closet(s)
Flooring Ceramic Tile,Marble,Parquet
Furnished Y/N Unfurnished
Air Conditioning Y/N true
Heating Y/N true
Window Features Blinds,Impact Glass
Fireplace Y/N true
Total Bedrooms 4
Total Baths 3

Exterior Features

Exterior Amenities Barbecue,Deck,Fence,Lighting,Outdoor Grill,Porch,Shed
Parking Features Attached,Driveway,Garage,Garage Door Opener
Lot Features < 1/4 Acre
Water Source Public
Lot Size Area 10000
Spa false
Building Area Total 3722
Road Surface Type Paved
Private Pool true
Waterfront Y/N false
Covered Spaces 2

Amenities

  • Foreclosure
  • Views
  • Short Sale
  • New Construction
  • Adult 55+
  • Lease To Own
  • No HOA Fees
  • Furnished
  • Primary On Main
  • Air Conditioning
  • Seller Finance
  • Green
  • Fixer Upper
  • Horse
  • Golf
  • Fireplace
  • Deck
  • Garage
  • Basement
  • Pool

Affordability Calculator

$3,786

Per Month

Based on the average sale price from the Miami Beach, FL office

  • Monthly Principal & interest $2,658
  • Monthly Property Taxes $1,062
  • Monthly Home Insurance $67
Adjust Payment Options
Agent Photo

Let's determine your purchasing power. Working with my mortgage partner, you'll have the information you need to shop for a home with confidence.

Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA, or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

Schools

Elementary School Keybiscayne Elementary School
Middle School Ponce De Leon Middle School
High School Mast Academy High School

Price History

8/28/2026 Listed $5,950,000
8/29/2026 7% - $6,350,000

Property vs Zip Code Average in 33149

Price
AVG $9.24M
$6.35M
Taxes
AVG $76,969
$55,539
Year Built
AVG 1986
1964

In The Neighborhood

Areas That We Cover

571 S Mashta Dr Key Biscayne, FL is a Single Family Home for sale at $6350000 with 2761 sqft and a lot size of Acre(s). 571 S Mashta Dr Key Biscayne has 4 bedrooms, 3 baths and was built in 1964. The property's zip code is 33149 which is in Key Biscayne, FL

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

All information deemed reliable, but not guaranteed, and should be independently verified. The real estate information and related content displayed on this site is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Your Agent
Kimberly Suazo

Kimberly Suazo

305-384-6502

Find your home's value