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$5,799,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 1 Partial Bath
  • 3,382 Sq. Ft.
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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.

Full Property Details for 669 S Mashta Dr

General

  • Price: $5,799,000
  • Taxes: $22,013 (2025)
  • Status: Active
  • Type: Single Family
  • Source: Greater_Miami
  • MLS ID: A12033340
  • Updated: 6/8/2026
  • Added to Site: 25 day(s) ago

Interior

  • Interior Features: Roman Tub, Split Bedroom, Volume Ceilings, Florida Room
  • Appliances: Dishwasher, Disposal, Dryer, Gas Range, Refrigerator, Self-Cleaning Oven, Wall Oven, Washer
  • Flooring: Vinyl

Rooms

Bathrooms

  • Total Bathrooms: 4
  • Full Bathrooms: 3
  • Half Bathrooms: 1
  • Primary Bathroom: Dual Sinks, Separate Tub & Shower

Bedrooms

  • Total Bedrooms: 4
  • Bedroom Features: At Least 1 Bedroom Ground Level

Other Rooms

  • Living Room: Florida Room Sq. Ft.
  • Dining Room: Breakfast Area, Formal Dining

Additional Information

  • Pool: Yes
  • Pool Description: Above Ground, 0x0
  • Security/Safety: Smoke Detector

Exterior

  • Exterior Features: Outdoor Shower
  • Deck/Patio: Patio

Parking

  • Parking Features: Driveway

Location

  • Area: Mashta Island
  • County: Miami-Dade County
  • Subdivision: MASHTA ISLAND
  • Building Name: MASHTA ISLAND
  • Direction Faces: West

School Information

  • Elementary School: Keybiscayne
  • Middle School: Ponce De Leon
  • High School: Coral Gables

Community

  • Community Name: Mashta Island

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Central Air
  • Heating Type: Heat Strip

Utilities

  • Sewer: Public Sewer
  • Water: Municipal Water

Structural Information

  • Architectural Style: Attached, Two Story
  • Structure Type: Pool Only, House
  • Detached/Attached: Detached
  • Construction: CBS Construction
  • Roof: Tar & Gravel Roof
  • Windows: Clear Impact Glass, Partial Accordian Shutters, Partial Impact Glass, Hurricane Shutters, Blinds, Impact Glass
  • Building Size: 3382
  • Square Feet: 3,382
  • Living Area: 3,382 Sq. Ft.
  • Year Built: 1960

Lot Features

  • Property View: Garden
  • Lot Size (Sq. Ft.): 10,000
  • Lot Features: Less Than 1/4 Acre Lot
  • Zoning: 2001

Financial Considerations

  • Price Per Sq. Ft.: $1,714.67
  • Tax Amount: $22,013
  • Tax Year: 2025
  • Terms: All Cash, Conventional

Disclosures and Reports

  • 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
  • Restrictions: No Restrictions
  • Property ID: 24-52-05-008-0180
Buyer's Brokerage Compensation: Contact Listing Agent
Not binding unless confirmed by separate agreement among applicable parties.

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— 669 S Mashta Dr —

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with our affiliated lender
NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Schools serving 669 S Mashta Dr

School District:Dade County School District
NameGradesDistance
Key Biscayne K-8 Center
150 West McIntyre Street, Key Biscayne, FL 33149
PK-50.6 mi
Ponce De Leon Middle School
5801 Augusto Street, Coral Gables, FL 33146
6-86.4 mi
Coral Gables Senior High School
450 Bird Road, Coral Gables, FL 33146
9-126.4 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 669 S Mashta Dr Get Price Alerts and Save Property

Date
Details
Price
Change
Source
6/05/2026
Listed
$5,799,000
22.08%
MLS
1/27/2026
Sold
$4,750,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 669 S Mashta Dr

Year
Property Taxes
Change
Tax Assessment
Change
2025
$22,931
2%
$1,420,458
3%
2024
$22,405
1%
$1,380,426
3%
2023
$22,116
4%
$1,340,220
6%
2021
$21,242
—
$1,263,287
-3%
2022
$21,199
—
$1,301,185
4%
2021
$21,242
9%
$1,245,846
2%
2019
$19,550
6%
$1,217,836
2%
2018
$18,517
1%
$1,195,129
2%
2017
$18,288
—
$1,170,548
2%
2016
$18,353
-1%
$1,146,473
1%
2015
$18,616
-2%
$1,138,504
1%
2014
$18,903
2%
$1,129,469
1%
2013
$18,537
—
$1,112,778
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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669 S Mashta Dr, Key Biscayne, FL 33149 (MLS# A12033340) is a Single Family property with 4 bedrooms, 3 full bathrooms and 1 partial bathroom. 669 S Mashta Dr is currently listed for $5,799,000 and was received on June 05, 2026. This property is listed by Maureen Jauregui from our Global Luxury Bayfront Office.Want to learn more about 669 S Mashta Dr? Do you have questions about finding other Single Family real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.

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