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500 S Mashta Drive, Key Biscayne, FL 33149

$17,400,000

Virtual Tour

https://player.vimeo.com/external/391001603.hd.mp4?s=254a474f1b1c77ab4b3b076c63ec074c6a341593&profile_id=175

Property Type: Residential Bedrooms: 6 Baths: 8 Square Footage: 14,969 Status: Closed

Current Price: $17,400,000 List Date: 2/04/2020 Last Modified: 12/24/2025

Description

Enjoy ocean and sunset views from this 2014 Mashta Island estate on a 23,814 SqFt oversized lot with 138ft of water frontage. This custom-built home, inspired by Modern architect Richard Meier, features pure geometric lines and integrated open spaces with an emphasis on natural light. Unique features include a 3-story curved glass curtain wall, 14 skylights over a 27-ft high atrium, NanaWall folding glass doors, elevator, gym, dock, staff quarters, 4-car garage, generator and smart home technology.

More Information MLS# A10811961

Contract Information

Comp Sale YN: No Occupant Type: Owner Listing Date: 2020-02-04 Status: Closed Original List Price: 18200000 Sold Price: $17,400,000 Current Price: $17,400,000

Location and Legal

County Or Parish: Miami-Dade County Parish Name: Miami-Dade City Name: Key Biscayne Municipal Code: 24 Postal Zip: 33149 Subdivision Number: 9 Flood Zone: AE Country: United States Street Number: 500 Street Direction Prefix: S Street Name: Mashta Street Suffix: Drive State Or Province: FL Postal Code: 33149 Postal Code +4: 1733 Subdivision Name: MASHTA ISLAND A REPLAT OF Area: 2520 Elementary School: Key Biscayne K-8 Middle Or Junior School: Madison Parcel Number: 2452050090200 Zoning: 2001 Directions: Once you enter the village of Key Biscayne, turn right onto Harbor Drive. After 1.6 miles, turn right onto W Mashta Drive. After 0.2 miles, 500 S Mashta will be straight ahead of you.

General Property Information

Adjusted Area Main: 11149 Living Area Main: 10820 Lot Size Dimensions: 126x189 Lot Size Area: 23814 Water Frontage Feet: 138 Senior Community YN: Yes Outdoor Living Spaces YN: Yes Furnished: Unfurnished Stories Total: 3 Pool Private YN: Yes Spa YN: Yes Property Sub Type: Single Family Residence Bedrooms Total: 6 Bathrooms Total: 8 Bathrooms Full: 6 Bathrooms Half: 2 Building Area Main: 14969 Year Built: 2014 Garage YN: 1 Attached Garage YN: 1 Garage Spaces: 4 Covered Spaces: 4 Lot Size Acres: 0.55 Waterfront YN: 1 Direction Faces: Southwest

Financial Information

Membership Fee Required YN: No Tax Annual Amount: 208849 Tax Year: 2015 Tax Legal Description: 5-6 55 42 PB 65-65 MASHTA ISLAND A REPLAT OF TRS A B & C PB 65-65 LOT 19 BLK 3 LOT SIZE 126.000 X 189 COC 23768-4016 09 2005 1

Office/Member Information

DXORIGMLSID: SEF

Status Change Information

Buyer Financing: Cash Major Change Timestamp: 2021-04-13T23:44:28Z Major Change Type: Status Change Price Change Timestamp: 2021-02-22T16:00:41Z Status Change Date: 2021-04-27 Under Contract Date: 2021-02-16 Close Date: 2021-04-13 Close Price: 17400000

Amenities

None: 1

Dining Area

Breakfast Area: 1 Eat-In Kitchen: 1 Formal Dining: 1

Exterior Features

Awning(s): 1 Lighting: 1

Flooring

Marble: 1 Wood: 1

Parking Features

Garage Door Opener: 1 Guest: 1 Attached: 1 Attached Garage: 1 Garage: 1

Property Condition

New Construction: 1

Fencing

Fenced: 1

Possession

Negotiable: 1

Sewer

Public Sewer: 1

Special Information

Sold As-Is: 1

Utilities

Cable Available: 1

Heating

Central: 1 Electric: 1

Sprinkler Description

Auto Sprinkler: 1

Water Access

Ocean Access: 1

Water View

Bay: 1 Direct Ocean: 1

Window Features

Blinds: 1 Skylight(s): 1 Tinted Windows: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Gas Range: 1 Microwave: 1 Refrigerator: 1 Washer: 1

Construction Materials

CBS: 1

Interior Features

Built-in Features: 1 Central Vacuum: 1 Closet Cabinetry: 1 Elevator: 1 Entrance Foyer: 1 High Ceilings: 1 Storage: 1 Walk-In Closet(s): 1

Levels

Three Or More: 1

Listing Terms

Cash: 1 Conventional: 1

Lot Features

Oversized Lot: 1

Pool Features

Heated: 1 Pool Sweep: 1 Pool/Spa Combo: 1

Roof

Metal: 1

Security Features

Security System: 1 Smoke Detector(s): 1

Water Source

Public: 1

Waterfront Features

Bayfront: 1 Ocean Front: 1 Seawall: 1

Water Heater Details

Electric Water Heater: 1 Gas Water Heater: 1

Boat and Dock Information

Dock: Yes

Boat and Dock Features

Hoist/Davit: 1 Private Dock: 1

Cooling

Central Air: 1 Electric: 1

Showing Requirements

Call Listing Agent: 1

Master Bedroom/Bath

Bidet: 1 Dual Sinks: 1 Master Bdrm - Sitting: 1 Master Bdrm - Upstairs: 1 Separate Shower: 1 Separate Tub: 1 Whirlpool Tub: 1

Pool Size Details

Pool Size (WxL): 46x16

Restrictions

No Restrictions: 1

Storm Protection

Impact Glass: Partial

Tax Information

City/County: 1

Outdoor Living Spaces

Deck: 1 Patio: 1

Contingencies

None: 1

Room Types

Atrium: 1 Den: 1 Family Room: 1 Laundry: 1 Maid/In-Law Quarters: 1

Buyer Details

Intended Use: Unknown/Withheld

Concessions

Seller Concessions: No

Price Calculations

Current Price To SqFt: 1608.13

Section Details

Parcel Number MLX: 0200

Acreage Description

1/2 To Less Than 1 Acre Lot: 1

Originating Details

Originating System Key: 342860384 Originating System ID: M00000151

Property Features

Dining Area: Breakfast Area; Eat-In Kitchen; Formal Dining Exterior Features: Awning(s); Lighting Flooring: Marble; Wood Parking Features: Garage Door Opener; Guest; Attached; Attached Garage; Garage Property Condition: New Construction Appliances: Dishwasher; Disposal; Dryer; Gas Range; Microwave; Refrigerator; Washer Water Heater Details: Electric Water Heater; Gas Water Heater Boat and Dock Features: Hoist/Davit; Private Dock Construction Materials: CBS Cooling: Central Air; Electric Fencing: Fenced Heating: Central; Electric Interior Features: Built-in Features; Central Vacuum; Closet Cabinetry; Elevator; Entrance Foyer; High Ceilings; Storage; Walk-In Closet(s) Levels: Three Or More Listing Terms: Cash; Conventional Lot Features: Oversized Lot Pool Features: Heated; Pool Sweep; Pool/Spa Combo Possession: Negotiable Restrictions: No Restrictions Roof: Metal Security Features: Security System; Smoke Detector(s) Sewer: Public Sewer Special Information: Sold As-Is Sprinkler Description: Auto Sprinkler Tax Information: City/County Utilities: Cable Available Water Access: Ocean Access Water Source: Public Water View: Bay; Direct Ocean Waterfront Features: Bayfront; Ocean Front; Seawall Window Features: Blinds; Skylight(s); Tinted Windows Showing Requirements: Call Listing Agent Outdoor Living Spaces: Deck; Patio Contingencies: None Room Types: Atrium; Den; Family Room; Laundry; Maid/In-Law Quarters Acreage Description: 1/2 To Less Than 1 Acre Lot

Room Information

Atrium Den Family Room Maid/In-Law Quarters Laundry

Listing Office: One Sotheby's International Realty

Last Updated: December - 24 - 2025

500 S Mashta Drive, Key Biscayne, FL 33149- MLS# A10811961

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