520 S Mashta Drive, Key Biscayne, FL 33149 (MLS# A11502495)


Offices Agents
7
Agents Found
Agustin Arellano
Southfields Real Estate, Inc.
ph: 803-295-3388
[email protected]
Ashley Arguello
Southfields Real Estate, Inc.
ph: 908-670-0614
[email protected]
http://oneforonegroup.com
Carlos R. Arellano
Southfields Real Estate, Inc.
ph: 561-644-2474
[email protected]
http://HTTP://WWW.SOUTHFIELDSRE.COM
Diego Arellano
Southfields Real Estate, Inc.
ph: 561-389-4699
[email protected]
http://southfieldsre.com/
Gina O Arellano
Southfields Real Estate, Inc.
ph: 305-389-0259
[email protected]
http://HTTP://WWW.GINAARELLANO.COM

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520 S Mashta Drive, Key Biscayne, FL 33149

$16,500,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 3,085 Status: Closed
Current Price: $16,500,000 List Date: 12/20/2023 Last Modified: 2/13/2026

Overview

Description

CROWN JEWEL OF KEY BISCAYNE! Captivating wide open Bay vistas on raresought after S. Mashta Drive. Situated among luxurious multi-million dollarmansions, it offers unparalleled privacy and security. Highlight of this propertyis its expansive 22,140 sq.ft. WF lot providing breathtaking views of the Bay,from private yachts passing by to mesmerizing sunsets. Enjoy 3,085 sq.ft. recentlyrenovated “Hamptons like” villa as you imagine your dream home. Home canalso be easily leased to generate income. Excellent school system, Int'lboutiques, and restaurants. Nestled between two exquisite parks boasting pristinewhite sandy beaches, golf & tennis centers. Twenty minutes from vibrantareas of Brickell Ave & Coconut Grove. 25 minutes from heart of S. Beach andMiami Int’l. airport.

Listing Details MLS# A11502495

General Property Information

Lease MLS ID
A11326642
Property Sub Type
Single Family Residence
Bedrooms Total
4
Bathrooms Total
4
Bathrooms Full
4
Living Area Main
3085
Year Built
1961
Garage YN
Yes
Garage Spaces
2
Covered Spaces
2
Lot Size Area
22140
Lot Size Acres
0.51
Lot Size Dimensions
22140
Senior Community YN
Yes
Waterfront YN
Yes
Water Frontage Feet
135
Outdoor Living Spaces YN
Yes
Stories Total
Yes
Direction Faces
West
Pool Private YN
Yes
Furnished
Unfurnished

Property Features

Dining Area: Breakfast Area; Eat-In Kitchen Exterior Features: Lighting Flooring: Ceramic Tile Parking Features: Covered; Garage Door Opener; Guest Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Electric Range; Microwave; Refrigerator Boat and Dock Features: Private Dock Construction Materials: Block Cooling: Central Air Heating: Central Interior Features: Bedroom Layout - Split; Kitchen Island; Pantry; Walk-In Closet(s) Levels: One Listing Terms: Cash; Conventional Pets Allowed YN: No Pool Features: In Ground Possession: Negotiable Restrictions: No Restrictions Roof: Barrel Sewer: Public Sewer Tax Information: Tax Reflects No Exemptions Utilities: Cable Available View: Water Water Source: Public Water View: Bay Waterfront Features: Bayfront; Seawall; No Fixed Bridges Window Features: Sliding Showing Requirements: Call Listing Agent Outdoor Living Spaces: Patio Contingencies: Inspection Room Types: Laundry Acreage Description: 1/2 To Less Than 1 Acre Lot

Contract Information

Comp Sale YN
No
Original List Price
17200000
Occupant Type
Vacant

Location and Legal

Country
United States
County Or Parish
Miami-Dade
County Parish Name
Miami-Dade
Street Number
520
Street Direction Prefix
S
Street Name
Mashta
Street Suffix
Drive
City Name
Key Biscayne
Municipal Code
24
State Or Province
FL
Postal Code
33149
Postal Code +4
1733
Postal Zip
33149
Subdivision Name
MASHTA ISLAND
Area
2520
Parcel Number
2452050090170
Subdivision Number
9
Zoning
20/ESTAT
Directions
TAKE CRANDON BLVD. TO W. MASHATA DR.. RT. ALL THE WAY TO S. MASHTA DRIVE. RT. TO THIRD HOUSE ON LEFT.

Financial Information

Membership Fee Required YN
No
Tax Annual Amount
163377
Tax Year
2022
Tax Legal Description
5-6 55 42MASHTA ISLAND A REPLAT OF TRS A & C SELY35FT LOT 16 & ALL LT 17 BLK BLK

Status Change Information

Major Change Timestamp
2024-02-26T20:18:21Z
Major Change Type
Status Change
Price Change Timestamp
2023-12-18T21:47:37Z
Status Change Date
2024-02-26
Under Contract Date
2024-01-15
Close Date
2024-02-26
Close Price
16500000
Buyer Financing
Cash

More Information

Entry Information

Entry Level
Yes

Boat and Dock Information

Dock
Yes

Storm Protection

Impact Glass
Partial

Buyer Details

Intended Use
Unknown/Withheld

Concessions

Seller Concessions
No

Price Calculations

Current Price To SqFt
5348.46

Section Details

Parcel Number MLX
0170

Originating Details

Originating System Key
389729075
Originating System ID
M00000151

Office/Member Information

DXORIGMLSID
SEF

Amenities

Other
Yes

Dining Area

Breakfast Area
Yes
Eat-In Kitchen
Yes

Exterior Features

Lighting
Yes

Flooring

Ceramic Tile
Yes

Parking Features

Covered
Yes
Garage Door Opener
Yes
Guest
Yes

Property Condition

Resale
Yes

Possession

Negotiable
Yes

Sewer

Public Sewer
Yes

Utilities

Cable Available
Yes

View

Water
Yes

Heating

Central
Yes

Water View

Bay
Yes

Window Features

Sliding
Yes

Appliances

Dishwasher
Yes
Disposal
Yes
Dryer
Yes
Electric Range
Yes
Microwave
Yes
Refrigerator
Yes

Construction Materials

Block
Yes

Interior Features

Bedroom Layout - Split
Yes
Kitchen Island
Yes
Pantry
Yes
Walk-In Closet(s)
Yes

Levels

One
Yes

Listing Terms

Cash
Yes
Conventional
Yes

Pool Features

In Ground
Yes

Roof

Barrel
Yes

Water Source

Public
Yes

Waterfront Features

Bayfront
Yes
Seawall
Yes
No Fixed Bridges
Yes

Boat and Dock Features

Private Dock
Yes

Cooling

Central Air
Yes

Showing Requirements

Call Listing Agent
Yes

Master Bedroom/Bath

Bedroom On Entry Level
Yes

Pets Allowed YN

No
Yes

Pool Size Details

Pool Size (WxL)
No

Restrictions

No Restrictions
Yes

Tax Information

Tax Reflects No Exemptions
Yes

Outdoor Living Spaces

Patio
Yes

Contingencies

Inspection
Yes

Room Types

Laundry
Yes

Acreage Description

1/2 To Less Than 1 Acre Lot
Yes

Room Information

Room Name
Laundry
IDX
Listing Office: Fortune Christie's Intl R.E.
Last Updated: February - 13 - 2026
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. Copyright 2026 Beaches Multiple Listing Service, Inc. All rights reserved. Information Not Guaranteed and Must Be Confirmed by End User. Site contains live data.

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