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591 N Mashta Drive, Key Biscayne, FL 33149

$15,500,000

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https://www.propertypanorama.com/instaview/mia/A11924175

Property Type: Residential Bedrooms: 4 Baths: 5 Square Footage: 6,219 Status: Active Under Contract

Current Price: $15,500,000 List Date: 11/27/2025 Last Modified: 6/01/2026

Description

BEAUTIFUL AND UNIQUE WATERFRONT HOME ON EXCLUSIVE MASHTA ISLAND, ON DESIRABLE NORTH MASHTA DR IN KEY BISCAYNE. ELEVATED AND VERY COMFORTABLE 4BR/4.5BA + MAID’S QUARTERS WITH APPROX. 4,290 SQ FT UNDER A/C, SITTING ON A LARGE AND PRIVATE 15,184 SQ FT LOT, IDEAL FOR ENJOYING WITH FAMILY AND FRIENDS.APPROX. 50 FT DOCK WHERE THE OWNERS HAVE DOCKED BOATS OF AROUND 78 FT, WITH DEEP WATER OF ABOUT 8 FT EVEN AT LOW TIDE – A RARE TRUE DEEP-WATER ACCESS ON THE ISLAND. NORTH-FACING CANAL KEEPS THE HOUSE AND OUTDOOR AREAS PLEASANT AND COOLER ALL YEAR ROUND. EASY TO SHOW. BRING YOUR QUALIFIED BUYERS AND BEST OFFERS.

More Information MLS# A11924175

Contract Information

Comp Sale YN: No Occupant Type: Call Listing Agent Listing Date: 2025-11-26 Status: Active Under Contract Original List Price: 16950000 List Price: $15,500,000 Current Price: $15,500,000

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: 591 Street Direction Prefix: N Street Name: Mashta Street Suffix: Drive State Or Province: FL Postal Code: 33149 Postal Code +4: 1718 Subdivision Name: MASHTA ISLAND A REPLAT OF Area: 2520 Elementary School: Key Biscayne K-8 Middle Or Junior School: Ponce De Leon High School: Coral Gables Parcel Number: 2452050090040 Zoning: 2001

General Property Information

Adjusted Area Main: 4934 Living Area Main: 4290 Lot Size Area: 15184 Water Frontage Feet: 0 Senior Community YN: No Outdoor Living Spaces YN: Yes Stories Total: 1 Pool Private YN: Yes Property Sub Type: Single Family Residence Bedrooms Total: 4 Bathrooms Total: 5 Bathrooms Full: 4 Bathrooms Half: 1 Building Area Main: 6219 Year Built: 1960 Garage YN: 1 Garage Spaces: 2 Covered Spaces: 2 Lot Size Acres: 0.35 Waterfront YN: 1 Direction Faces: North

Financial Information

Membership Fee Required YN: No Tax Annual Amount: 112793 Tax Year: 2025 Tax Legal Description: MASHTA ISLAND A REPLAT OF TRS A B & C PB 65-65 LOT 11 BLK 1 LOT SIZE 104.000 X 146 OR 15577-14 0982 1 COC 22096-0549 03 2004 1

Office/Member Information

DXORIGMLSID: SEF

Amenities

None: 1

Entry Information

Entry Level: 1

Flooring

Wood: 1 Other: 1

Property Condition

Resale: 1

Possession

Close Of Escrow: 1

Sewer

Septic Tank: 1

Special Information

Sold As-Is: 1

View

Water: 1

Heating

Central: 1

Water Access

None: 1

Water View

Canal: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Gas Range: 1 Microwave: 1 Trash Compactor: 1

Construction Materials

Concrete Block - No Stucco: 1

Levels

One: 1

Listing Terms

Cash: 1 Conventional: 1 FHA: 1 FHA-VA Approved: 1

Pool Features

In Ground: 1

Roof

Aluminum: 1

Water Source

Public: 1

Waterfront Features

Canal Front: 1

Water Heater Details

Electric Water Heater: 1

Cooling

Central Air: 1

Showing Requirements

Call Listing Agent: 1

Master Bedroom/Bath

Bedroom On Entry Level: 1

Pool Size Details

Pool Size (WxL): 0

Restrictions

See Remarks: 1

Tax Information

Tax Reflects No Exemptions: 1

Outdoor Living Spaces

Deck: 1

Section Details

Parcel Number MLX: 0040

Acreage Description

1/4 To Less Than 1/2 Acre Lot: 1

Status Change Information

Major Change Timestamp: 2026-05-28T22:48:58Z Major Change Type: Status Change Price Change Timestamp: 2026-03-20T21:55:51Z Status Change Date: 2026-05-28 Under Contract Type: Active Under Contract Under Contract Date: 2026-05-04

Originating Details

Originating System Key: 423871108 Originating System ID: M00000151

Property Features

Flooring: Wood; Other Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Gas Range; Microwave; Trash Compactor Water Heater Details: Electric Water Heater Construction Materials: Concrete Block - No Stucco Cooling: Central Air Heating: Central Levels: One Listing Terms: Cash; Conventional; FHA; FHA-VA Approved Pool Features: In Ground Possession: Close Of Escrow Restrictions: See Remarks Roof: Aluminum Sewer: Septic Tank Special Information: Sold As-Is Tax Information: Tax Reflects No Exemptions View: Water Water Access: None Water Source: Public Water View: Canal Waterfront Features: Canal Front Showing Requirements: Call Listing Agent Outdoor Living Spaces: Deck Acreage Description: 1/4 To Less Than 1/2 Acre Lot

Listing Office: EXP Realty LLC

Last Updated: June - 01 - 2026

591 N Mashta Drive, Key Biscayne, FL 33149- MLS# A11924175

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