640 S Mashta Dr Key Biscayne, FL 33149
Estimated payment $109,395/month
Highlights
- Ocean Front
- Private Dock
- Wood Flooring
- Key Biscayne K-8 Center Rated A-
- In Ground Pool
- No HOA
About This Home
Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate.
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $81,859
Year Built
- Built in 1968
Lot Details
- 0.34 Acre Lot
- Ocean Front
- Property Fronts a Bay or Harbor
- East Facing Home
- Property is zoned 2001
Parking
- 2 Car Garage
- Circular Driveway
- Open Parking
Property Views
- Ocean
- Bay
Home Design
- Flat Tile Roof
- Concrete Block And Stucco Construction
Interior Spaces
- 3,620 Sq Ft Home
- 2-Story Property
- Built-In Features
- High Impact Door
Kitchen
- Microwave
- Dishwasher
Flooring
- Wood
- Tile
Bedrooms and Bathrooms
- 5 Bedrooms
- 5 Full Bathrooms
Laundry
- Dryer
- Washer
Outdoor Features
- In Ground Pool
- Property has ocean access
- Private Dock
Schools
- Keybiscayne Elementary School
- Ponce De Leon Middle School
- Coral Gables High School
Utilities
- Central Heating and Cooling System
Community Details
- No Home Owners Association
- Mashta Island Subdivision
Listing and Financial Details
- Assessor Parcel Number 24-52-05-008-0320
Map
Home Values in the Area
Average Home Value in this Area
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 |
|---|---|---|---|---|
| 2025 | $81,859 | $9,910,420 | $9,300,000 | $610,420 |
| 2024 | $80,770 | $5,157,166 | -- | -- |
| 2023 | $80,770 | $5,006,958 | $0 | $0 |
| 2022 | $77,770 | $4,861,125 | $0 | $0 |
| 2021 | $78,116 | $4,719,539 | $0 | $0 |
| 2020 | $76,240 | $4,654,378 | $0 | $0 |
| 2019 | $74,698 | $4,549,735 | $0 | $0 |
| 2018 | $70,884 | $4,464,902 | $0 | $0 |
| 2017 | $70,022 | $4,373,068 | $0 | $0 |
| 2016 | $70,220 | $4,283,123 | $0 | $0 |
| 2015 | $71,257 | $4,253,350 | $0 | $0 |
| 2014 | $72,343 | $4,219,594 | $0 | $0 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 10/15/2025 10/15/25 | For Sale | $19,500,000 | 0.0% | $5,387 / Sq Ft | |
| 02/07/2025 02/07/25 | Rented | $20,000 | -9.1% | -- | |
| 12/04/2024 12/04/24 | Price Changed | $22,000 | 0.0% | $6 / Sq Ft | |
| 10/16/2024 10/16/24 | Sold | $12,375,000 | 0.0% | $3,419 / Sq Ft | View Prior Sale |
| 10/04/2024 10/04/24 | For Rent | $27,000 | 0.0% | -- | |
| 09/20/2024 09/20/24 | Pending | -- | -- | -- | |
| 08/20/2024 08/20/24 | For Sale | $13,250,000 | +7.1% | $3,660 / Sq Ft | |
| 08/19/2024 08/19/24 | Off Market | $12,375,000 | -- | -- | |
| 08/05/2024 08/05/24 | Price Changed | $13,250,000 | -11.7% | $3,660 / Sq Ft | |
| 06/26/2024 06/26/24 | For Sale | $15,000,000 | -- | $4,144 / Sq Ft |
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Deed | $12,375,000 | None Listed On Document | |
| Interfamily Deed Transfer | -- | Attorney | |
| Warranty Deed | $1,550,000 | -- |
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Previous Owner | $350,000 | New Conventional |
Source: MIAMI REALTORS® MLS
MLS Number: A11896953
APN: 24-5205-008-0320
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