$13,800,000
SOLD MAR 28, 2025

660 S Mashta Dr Key Biscayne, FL 33149

Village of Key Biscayne Neighborhood
7 Beds
8.5 Baths
5,043 Sq Ft
0.34 Acres

Recently Sold

$2,736 Per Sq Ft

37% Below List Price

377 Days on Market

Highlights

  • Property has ocean access
  • Property Fronts a Bay or Harbor
  • Two Primary Bathrooms
  • Key Biscayne K-8 Center Rated A-
  • Heated Pool
  • Deck

About This Home

As of March 2025

Don't miss this opportunity to own a rarely available wide bay front home on S Mashta Dr featuring 100 ft of water frontage & unobstructed views. This large 2 story home has an eat in kitchen, 3 door wine chiller & separate walk-in pantry/storage area. An adjacent covered patio is separated from the kitchen by multi sliding impact doors that open & stack against each other expanding your entertaining space & bringing the outside in. The primary BR has 2 full baths & 3 walk-in closets. There are an additional 4 BR's & 4 baths on the first floor, one of which has a kitchenette & a separate entrance. A mosaic staircase leads to 2 additional bedrooms w/ensuite baths & a large shared balcony Additional amenities include heated pool, cabana bath & an expansive patio for entertaining.

Last Agent to Sell the Property

Kathy Green

Coldwell Banker Realty License #0344003

Coldwell Banker Realty

Last Buyer's Agent

Giulietta Ulloa

BHHS EWM Realty License #0658811

BHHS EWM Realty

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $130,181

Year Built

  • Built in 1965

Lot Details

  • 0.34 Acre Lot
  • 100 Ft Wide Lot
  • Property Fronts a Bay or Harbor
  • Northeast Facing Home
  • Fenced
  • Property is zoned 2001

Home Design

  • Concrete Block And Stucco Construction

Interior Spaces

  • 5,043 Sq Ft Home
  • 2-Story Property
  • Built-In Features
  • Electric Shutters
  • Marble Flooring
  • Bay Views

Kitchen

  • Eat-In Kitchen
  • Built-In Oven
  • Electric Range
  • Dishwasher
  • Disposal

Bedrooms and Bathrooms

  • 7 Bedrooms
  • Primary Bedroom on Main
  • Walk-In Closet
  • Two Primary Bathrooms
  • Shower Only

Laundry

  • Laundry in Utility Room
  • Dryer
  • Washer

Home Security

  • Security System Owned
  • Impact Glass

Parking

  • Driveway
  • Open Parking

Accessible Home Design

  • Accessible Full Bathroom
  • Roll-in Shower
  • Accessible Hallway
  • Accessible Doors
  • Accessible Approach with Ramp

Pool

  • Heated Pool
  • Outdoor Pool
  • Pool Bathroom

Outdoor Features

  • Property has ocean access
  • No Fixed Bridges
  • Seawall
  • Deck
  • Patio

Utilities

  • Cooling Available
  • Heating Available

Community Details

  • No Home Owners Association
  • Mashta Island Subdivision

Listing and Financial Details

  • Assessor Parcel Number 24-52-05-008-0300

Home Details

Home Type

Single Family

Est. Annual Taxes

$130,181

Year Built

Built in 1965

Lot Details

0

Listing Details

  • Property Type: Residential
  • Year Built: 1965
  • Property Sub Type: Single Family Residence
  • Architectural Style: Detached, Two Story
  • Road Frontage Type: Bay
  • Garage Yn: No
  • Horses: No
  • Inclusions: Other
  • New Construction: No
  • Structure Type: House
  • Subdivision Name: MASHTA ISLAND
  • Year Built Details: Resale
  • ResoPropertyType: Residential
  • Special Features: VirtualTour

Interior Features

  • Appliances: Dishwasher, Disposal, Dryer, Electric Range, Refrigerator, Wall Oven, Washer
  • Interior Amenities: First Floor Entry, Built-in Features, Pantry, Walk-In Closet(s), Utility Room/Laundry
  • Spa Yn: No
  • Accessibility Features: Accessible Full Bath, Accessible Approach with Ramp, Roll-In Shower, Accessible Doors, Accessible Hallway(s), Accessible, Accessibly Equipped
  • Full Bathrooms: 8
  • Half Bathrooms: 1
  • Total Bedrooms: 7
  • Flooring: Marble
  • Furnished: Unfurnished, Furniture Negotiable
  • Living Area: 5043
  • Possible Use: Unknown/Withheld
  • Window Features: Electric Shutters, Impact Glass
  • Bedroom Features: At Least 1 Bedroom Ground Level, Primary Bedroom Ground Level
  • Dining Room Features: Eat-In Kitchen
  • Living Room Features: Utility Room/Laundry
  • Master Bathroom Features: 2 Primary Bathrooms, Shower Only

Exterior Features

  • Roof: Other
  • View: Bay
  • Construction Type: CBS Construction
  • Direction Faces: Northeast
  • Fencing: Fenced
  • Lot Features: 1/4 To Less Than 1/2 Acre Lot
  • Patio And Porch Features: Deck, Patio
  • Pool Features: Heated, Pool Bath
  • Pool Private: No
  • View: Yes
  • Waterfront Features: Ocean Access, No Fixed Bridges, Seawall
  • Waterfront: Yes

Garage/Parking

  • Park Building Name: MASHTA ISLAND
  • Open Parking: Yes
  • Parking Features: Driveway

Utilities

  • Sewer: Public Sewer
  • Water Source: Municipal Water
  • Cooling: Electric
  • Cooling Y N: Yes
  • Heating: Electric
  • Heating Yn: Yes
  • Laundry Features: Utility Room/Laundry
  • Security: Owned Burglar Alarm

Condo/Co-op/Association

  • Association: No
  • Community Features: Public Road

Association/Amenities

  • MIAMIRE_TypeofAssociation: None

Lot Info

  • Parcel Number: 24-52-05-008-0300
  • Lot Size Sq Ft: 15000
  • Zoning: 2001
  • ResoLotSizeUnits: SquareFeet

Tax Info

  • Tax Year: 2023
  • Tax Annual Amount: 130181

Map

Range of Values:

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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Property History

Date Event Price Change Sq Ft Price
03/28/2025 03/28/25 Sold $13,800,000 -18.8% $2,736 / Sq Ft
02/18/2025 02/18/25 Pending -- -- --
09/16/2024 09/16/24 Price Changed $16,999,000 -15.0% $3,371 / Sq Ft
04/24/2024 04/24/24 Price Changed $19,999,000 -8.9% $3,966 / Sq Ft
02/06/2024 02/06/24 For Sale $21,950,000 -- $4,353 / Sq Ft
Source: MIAMI REALTORS® MLS

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2024 $134,207 $9,004,396 -- --
2023 $134,207 $8,185,815 $0 $0
2022 $122,179 $7,441,650 $0 $0
2021 $112,426 $6,765,137 $6,225,000 $540,137
2020 $108,088 $6,544,165 $6,000,000 $544,165
2019 $108,424 $6,548,195 $6,000,000 $548,195
2018 $102,528 $6,401,227 $6,000,000 $401,227
2017 $117,911 $7,179,123 $0 $0
2016 $114,779 $6,526,476 $0 $0
2015 $101,025 $5,933,160 $0 $0
2014 $98,332 $5,393,782 $0 $0
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Previous Owner $1,040,200 New Conventional
Source: Public Records

Deed History

Date Type Sale Price Title Company
Quit Claim Deed -- International Law Group
Warranty Deed $4,875,000 Attorney
Warranty Deed $1,487,000 --
Source: Public Records

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Source: MIAMI REALTORS® MLS

MLS Number: A11526068

MIAMI REALTORS® MLS

APN: 24-5205-008-0300

Florida Miami/Dade County Key Biscayne 33149 Village of Key Biscayne

660 S Mashta Dr, Key Biscayne, FL

Homes for Sale in Key Biscayne, FL

This home is located at 660 S Mashta Dr, Key Biscayne, FL 33149 and is currently priced at $13,800,000, approximately $2,736 per square foot. This property was built in 1965. 660 S Mashta Dr is a home located in Miami-Dade County with nearby schools including Key Biscayne K-8 Center, Ponce de Leon Middle School, and Coral Gables Senior High School.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

MIAMI REALTORS® MLS IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.