481 S Mashta Dr Key Biscayne, FL 33149
Estimated payment $110,414/month
Highlights
- Property has ocean access
- Private Dock
- Sitting Area In Primary Bedroom
- Key Biscayne K-8 Center Rated A-
- In Ground Pool
- 17,012 Sq Ft lot
About This Home
Offering approximately 8,500 square feet of construction, this spectacular waterfront estate on coveted Mashta Island is a rare expression of space, privacy, and coastal elegance. Fully remodeled and designed for effortless indoor-outdoor living, this three-level contemporary residence enjoys direct ocean access, panoramic views of Smugglers Cove and Biscayne Bay, and constant ocean breezes that create a true sense of serenity.
Set on a 17,012-square-foot lot in one of Key Biscayne’s most exclusive and tranquil enclaves, the property is surrounded by water, light, and lush tropical landscaping, offering remarkable privacy and a peaceful island atmosphere. The residence features 8,544 square feet of total area, including garage and terraces, with expansive open living spaces, refined finishes, abundant natural light, and impeccable craftsmanship throughout. The flexible floor plan allows for effortless reconfiguration to accommodate additional rooms and customized living areas. World-class amenities include a private dock for boating enthusiasts, resort-style pool, summer kitchen, spectacular covered entertainment level, elevator, gym, garage, and extra parking, creating an exceptional setting for both grand entertaining and everyday enjoyment. This is more than a home...it is a private waterfront sanctuary, offering the rare opportunity to experience the very best of island living in one of Key Biscayne’s most prestigious locations.
Listing Agent
One Sotheby's International Realty License #0542022 Listed on: 04/08/2025
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $84,924
Year Built
- Built in 2017
Lot Details
- 0.39 Acre Lot
- Home fronts a canal
- South Facing Home
- Property is zoned 2001
Parking
- 2 Car Attached Garage
- Automatic Garage Door Opener
- Driveway
- Paver Block
- Open Parking
Home Design
- Barrel Roof Shape
- Concrete Block And Stucco Construction
Interior Spaces
- 5,940 Sq Ft Home
- Built-In Features
- Blinds
- Entrance Foyer
- Family Room
- Formal Dining Room
- Den
- Utility Room in Garage
- Canal Views
Kitchen
- Breakfast Area or Nook
- Built-In Oven
- Electric Range
- Microwave
- Ice Maker
- Dishwasher
- Disposal
Flooring
- Wood
- Ceramic Tile
Bedrooms and Bathrooms
- 5 Bedrooms
- Sitting Area In Primary Bedroom
- Primary Bedroom Upstairs
- Closet Cabinetry
- Walk-In Closet
- Bidet
- Dual Sinks
- Separate Shower in Primary Bathroom
Laundry
- Laundry in Garage
- Dryer
- Washer
Accessible Home Design
- Accessible Elevator Installed
Outdoor Features
- In Ground Pool
- Property has ocean access
- Canal Width 1-80 Feet
- Private Dock
- Balcony
- Patio
- Outdoor Grill
- Porch
Schools
- Keybiscayne Elementary School
- Mast Academy High School
Utilities
- Cooling Available
- Heating Available
- Electric Water Heater
Community Details
- Property has a Home Owners Association
- Voluntary home owners association
- Smugglers Cove Subdivision
Listing and Financial Details
- Assessor Parcel Number 24-52-05-017-0110
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 | $26,574 | $8,641,454 | -- | -- |
| 2024 | $84,924 | $5,433,777 | -- | -- |
| 2023 | $84,924 | $5,275,512 | $0 | $0 |
| 2022 | $81,871 | $5,121,857 | $0 | $0 |
| 2021 | $82,240 | $4,972,677 | $4,167,940 | $804,737 |
| 2020 | $81,618 | $4,982,692 | $4,167,940 | $814,752 |
| 2019 | $81,987 | $4,992,702 | $4,167,940 | $824,762 |
| 2018 | $83,847 | $5,274,903 | $4,440,132 | $834,771 |
| 2017 | $84,120 | $5,246,483 | $0 | $0 |
| 2016 | $95,013 | $5,784,876 | $0 | $0 |
| 2015 | $52,279 | $3,132,156 | $0 | $0 |
| 2014 | -- | $3,107,298 | $0 | $0 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 02/11/2026 02/11/26 | Price Changed | $19,900,000 | -4.8% | $3,350 / Sq Ft | |
| 01/05/2026 01/05/26 | Price Changed | $20,900,000 | 0.0% | $3,519 / Sq Ft | |
| 12/17/2025 12/17/25 | For Rent | $59,500 | 0.0% | -- | |
| 12/03/2025 12/03/25 | Price Changed | $21,780,000 | -3.1% | $3,667 / Sq Ft | |
| 11/03/2025 11/03/25 | Price Changed | $22,470,000 | -6.0% | $3,783 / Sq Ft | |
| 09/09/2025 09/09/25 | Price Changed | $23,900,000 | +4.4% | $4,024 / Sq Ft | |
| 04/08/2025 04/08/25 | For Sale | $22,900,000 | +200.0% | $3,855 / Sq Ft | |
| 04/20/2015 04/20/15 | Sold | $7,633,000 | -14.2% | $1,083 / Sq Ft | View Prior Sale |
| 04/15/2015 04/15/15 | Pending | -- | -- | -- | |
| 11/07/2014 11/07/14 | Price Changed | $8,900,000 | -6.3% | $1,263 / Sq Ft | |
| 07/08/2014 07/08/14 | For Sale | $9,500,000 | -- | $1,348 / Sq Ft |
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Warranty Deed | -- | None Listed On Document | |
| Quit Claim Deed | -- | None Listed On Document | |
| Warranty Deed | $29,700 | Attorney | |
| Warranty Deed | $7,633,000 | None Available | |
| Warranty Deed | $2,700,000 | -- | |
| Warranty Deed | $2,150,000 | -- |
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Previous Owner | $5,000,000 | New Conventional |
Source: MIAMI REALTORS® MLS
MLS Number: A11779615
APN: 24-5205-017-0110
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Ask me questions while you tour the home.