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669 S Mashta Dr Key Biscayne, FL $ 5,799,000
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669 S Mashta Dr
$ 5,799,000
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669 S Mashta Dr

Key Biscayne, FL, 33149
$ 5,799,000
Bedrooms4 Baths3.1 Sq 3,382

Monthly Estimate*

$ 36,615

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Single Family Home for sale in Key Biscayne, FL

for $5,799,000 with 4 bedrooms and 3 full baths, 1 half bath. This 3,382 square foot home was built in 1960.

Located on the exclusive and highly sought-after Mashta Island, this exceptional property offers a rare opportunity to build your dream home or enjoy the existing beautifully refurbished residence. The home features new bathrooms, updated flooring, and tasteful modern finishes throughout. Designed for relaxed Florida living, the spacious covered terrace overlooks a stunning mosaic-tiled pool, creating the perfect setting for entertaining or enjoying the tropical surroundings. A unique opportunity in one of Key Biscayne's most desirable neighborhoods. Easy to show.

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Single Family Active

Price

$ 5,799,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 22,013

Style

Year Built

1960

Town/City

Key Biscayne

County/Region

Miami-Dade

MLS | Web ID

A12033340
Features
General
Sewer Public Sewer
Heating Heat Strip
Cooling Central Air
Possession Closing & Funding
Roof Tar/Gravel
Appliances Built-In Oven Dryer Dishwasher Disposal Gas Range Refrigerator Self Cleaning Oven Washer
Garage Spaces 0
Patio/Porch Features Patio
Architectural Style Two Story
Pool Features Above Ground Pool
Security Features Smoke Detector(s)
Restrictions NoRestrictions
Construction Materials Block
Pets Allowed Yes
Year Built 1960
View Garden
Stories Count 2
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Community Features Home Owners Association
County Miami-Dade
Property Type Residential
Subdivision Name MASHTA ISLAND
Facing Direction West
Garage Y/N false
Total Rooms 0
Full Baths 3
Special Listing Conditions Listed As-Is
Status Active
High School Coral Gables
City Key Biscayne
Senior Community Y/N false
Zoning Description 2001
MLS Area 52
Lot Size Units Square Feet
Lot Size Square Feet 10000
Carport Spaces 0
Carport Y/N false
Listing Terms Cash Conventional
Elementary School Keybiscayne
Year Built Details Unknown
Tax Annual Amount 22013
Middle/Junior High School Ponce De Leon
Lease Considered Y/N false
Virtual Tour https://www.propertypanorama.com/instaview/mia/A12033340
Standard Status Active
Occupancy Type Call Agent
Property Sub Type Additional Single Family Residence
Legal Description 5-6 55 42 MASHTA ISLAND PB 60-93 LOT 11 BLK 2 LOT SIZE 100.000 X 100 OR 19565-4268 03/2001 1
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Interior
Interior Amenities Bedroom on Main Level Breakfast Area Dining Area Separate/Formal Dining Room Dual Sinks Garden Tub/Roman Tub High Ceilings Split Bedrooms Separate Shower
Flooring Vinyl
Air Conditioning Y/N true
Heating Y/N true
Window Features Blinds Impact Glass
Half Baths 1
Total Bedrooms 4
Total Baths 4
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Exterior
Exterior Amenities Outdoor Shower Patio Storm/Security Shutters
Parking Features Driveway
Lot Features Sprinklers Automatic < 1/4 Acre
Water Source Public
Lot Size Area 10000
Building Area Total 3382
Private Pool true
Waterfront Y/N false
Covered Spaces 0
Road Frontage Type City Street
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* Excluded Features
List By
Coldwell Banker Realty

Broker

carter.jauregui@gmail.com

Email

Affordability Calculator

$38,450
Per Month
95%
5%
0%
Monthly Principal & Interest
$36,615
Monthly Property Taxes
$1,834
Monthly Home Insurance
--
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.
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Nearby
3062566 Elementary School
4268812 Middle School
Coral Gables High School High School
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Pricing History
Date Price Price Change Description
6/8/2026 $5,799,000 Listed Price

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669 S Mashta Dr, Key Biscayne, FL, 33149 is a Single Family Home for sale at $5,799,000 with 3,382 sqft. 669 S Mashta Dr has 4 bedrooms, 3.1 baths, and was built in 1960. The property's zip code is 33149 which is in Key Biscayne, FL

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