481 S Mashta Drive, Key Biscayne, FL 33149

Key Biscayne
Local realty services provided by:Countywide Properties ERA Powered
481 S Mashta Drive,Key Biscayne, FL 33149
$19,900,000
  • 5 Beds
  • 7 Baths
  • 5,940 sq. ft.
  • Single family
  • Active
Listed by: brigitte nachtigall, jorge boj
Office: one sotheby's international realty305-365-2811
MLS#:A11779615
Source:SEFMLS

Price summary

  • Price:$19,900,000
  • Price per sq. ft.:$2,329.12

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. ...

Contact an agent

contact an agent

Yes, I would like more information. Please use and/or share my information with an ERA®  affiliated agent to contact me about my real estate needs. By clicking Send message, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If an ERA®  affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE® , CENTURY 21® , Coldwell Banker® , Corcoran® , Sotheby's International Realty® ). I acknowledge that I have read and agree to theTerms of useandPrivacy notice

Home facts

  • Year built:2017
  • Listing ID #:A11779615
  • Updated:March 19, 2026 at 09:59 AM

Rooms and interior

  • Bedrooms:5
  • Total bathrooms:7
  • Full bathrooms:6
  • Half bathrooms:1
  • Flooring:Ceramic Tile, Hardwood, Wood
  • Dining Description:Breakfast Area, Dining Area, Separate Formal Dining Room
  • Bathrooms Description:Bidet, Dual Sinks, Separate Shower
  • Kitchen Description:Built In Oven, Dishwasher, Disposal, Electric Range, Ice Maker, Microwave, Pantry, Refrigerator
  • Bedroom Description:Upper Level Primary, Walk-In Closets
  • Living area:5,940 sq. ft.

Heating and cooling

  • Cooling:Electric
  • Heating:Electric

Structure and exterior

  • Roof:Barrel
  • Year built:2017
  • Building area:5,940 sq. ft.
  • Lot area:0.39 Acres
  • Lot Features:Sprinklers Automatic
  • Construction Materials:Block
  • Exterior Features:Balcony, Open, Outdoor Grill, Patio, Porch
  • Levels:3+ Story

Schools

  • High school:Mast Academy
  • Elementary school:Keybiscayne

Utilities

  • Water:Public
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$19,900,000
  • Price per sq. ft.:$2,329.12
  • Tax amount:$84,924 (2024)

Features and amenities

  • Appliances:Built-In Oven, Dishwasher, Disposal, Dryer, Electric Range, Electric Water Heater, Ice Maker, Microwave, Refrigerator, Washer
  • Laundry features:Dryer, In Garage, Washer
  • Amenities:Balcony, Blinds, Closet Cabinetry, Elevator, Pantry
  • Pool features:In Ground, Pool

Parking

  • Parking description:Attached, Covered, Driveway, Garage, Garage Door Opener, Paver Block
  • Garage:Yes
  • Garage spaces:2
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

New listings near 481 S Mashta Drive