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640 S Mashta Drive, Key Biscayne, FL 33149

$12,375,000

Virtual Tour

https://youtu.be/Ys1MRolsLsE

Property Type: Residential Bedrooms: 5 Baths: 5 Square Footage: 4,990 Status: Closed

Current Price: $12,375,000 List Date: 6/25/2024 Last Modified: 2/12/2026

Description

Welcome to Heaven on Earth! Fish off your own dock and enjoy stunning sunset views from 100’ of direct Biscayne Bay waterfront in this iconic trophy property on the quiet side of Key Biscayne’s exclusive Mashta Island. Move in, renovate or build your dream home on this 15,000 SF lot. Enter into open-flow indoor-outdoor living, dining, and kitchen, with floor-to-ceiling sliding glass walls overlooking the sparkling screened pool, the wide bay and the boat dock—truly an entertainer’s delight! Sleep easy with five bedrooms and five full baths, including two water-facing principal suites and closets galore, plus impact windows-doors. Plenty of parking, with an oversized two-car garage plus covered parking and large guest driveway. One visit, and it will be clear—heaven on earth is right here!

More Information MLS# A11611809

Contract Information

Comp Sale YN: No Occupant Type: Call Listing Agent Listing Date: 2024-06-25 Status: Closed Original List Price: 15000000 Sold Price: $12,375,000 Current Price: $12,375,000

Location and Legal

County Or Parish: Miami-Dade County Parish Name: Miami-Dade City Name: Key Biscayne Municipal Code: 24 Postal Zip: 33149 Development Name: Mashta Island Subdivision Number: 8 Flood Zone: AE Country: United States Street Number: 640 Street Direction Prefix: S Street Name: Mashta Street Suffix: Drive State Or Province: FL Postal Code: 33149 Postal Code +4: 1735 Subdivision Name: MASHTA ISLAND Area: 2520 Parcel Number: 2452050080320 Zoning: 2001

General Property Information

Adjusted Area Main: 4234 Living Area Main: 3620 Lot Size Area: 15000 Water Frontage Feet: 100 Senior Community YN: No Stories Total: 2 Pool Private YN: Yes Property Sub Type: Single Family Residence Bedrooms Total: 5 Bathrooms Total: 5 Bathrooms Full: 5 Building Area Main: 4990 Year Built: 1968 Garage YN: 1 Attached Garage YN: 1 Garage Spaces: 2 Covered Spaces: 2 Lot Size Acres: 0.34 Waterfront YN: 1 Direction Faces: East

Financial Information

Membership Fee Required YN: No Tax Annual Amount: 80770 Tax Year: 2023 Tax Legal Description: MASHTA ISLAND PB 60-93 LOT 9 BLK 3 LOT SIZE 100.000 X 150 OR 18642-3922 0599 1

Office/Member Information

DXORIGMLSID: SEF

Status Change Information

Buyer Financing: Cash Major Change Timestamp: 2024-10-16T09:09:55Z Major Change Type: Status Change Price Change Timestamp: 2024-08-05T15:32:56Z Status Change Date: 2024-10-16 Under Contract Date: 2024-09-20 Close Date: 2024-10-16 Close Price: 12375000

Amenities

Boating: 1

Dining Area

Eat-In Kitchen: 1 Formal Dining: 1

Entry Information

Entry Level: 1

Exterior Features

Lighting: 1

Flooring

Tile: 1 Wood: 1

Leasing Permitted Details

Leasing Permitted YN: Yes Okay To Lease: 1

Parking Features

Circular Driveway: 1 Covered: 1 Driveway: 1 Attached: 1 Attached Garage: 1 Garage: 1

Property Condition

Resale: 1

Fencing

Fenced: 1

Possession

Negotiable: 1

Sewer

Public Sewer: 1

Utilities

Cable Available: 1

Heating

Other: 1

Water Access

No Fixed Bridge: 1

Water View

Bay: 1 Ocean: 1

Appliances

Dishwasher: 1 Dryer: 1 Electric Range: 1 Refrigerator: 1 Washer: 1

Construction Materials

Block: 1 CBS: 1

Interior Features

Bedroom Layout - Split: 1 Walk-In Closet(s): 1

Levels

Two: 1

Listing Terms

Cash: 1 Conventional: 1

Pool Features

Concrete: 1 In Ground: 1 Screen Enclosure: 1

Roof

Flat: 1 Tile: 1

Water Source

Public: 1

Waterfront Features

Bayfront: 1 Ocean Front: 1

Water Heater Details

Electric Water Heater: 1

Boat and Dock Information

Dock: Yes

Boat and Dock Features

Private Dock: 1

Cooling

Central Air: 1

Showing Requirements

Call Listing Agent: 1 Showing Service: 1

Master Bedroom/Bath

Master Bdrm - Ground: 1 Master Bdrm - Sitting: 1

Pets Allowed YN

Yes: 1

Pets Allowed

No Restrictions: 1

Pool Size Details

Pool Size (WxL): 15x30

Storm Protection

Impact Glass: Complete

Contingencies

Inspection: 1

Room Types

Great Room: 1 Media Room: 1

Buyer Details

Country of Origin: United States Intended Use: Investment Buyer State: Florida Zip Code: 33149

Concessions

Seller Concessions: No

Price Calculations

Current Price To SqFt: 3418.51

Section Details

Parcel Number MLX: 0320

Acreage Description

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

Originating Details

Originating System Key: 397519490 Originating System ID: M00000151

Property Features

Dining Area: Eat-In Kitchen; Formal Dining Exterior Features: Lighting Flooring: Tile; Wood Leasing Permitted Details: Okay To Lease Parking Features: Circular Driveway; Covered; Driveway; Attached; Attached Garage; Garage Property Condition: Resale Appliances: Dishwasher; Dryer; Electric Range; Refrigerator; Washer Water Heater Details: Electric Water Heater Boat and Dock Features: Private Dock Construction Materials: Block; CBS Cooling: Central Air Fencing: Fenced Heating: Other Interior Features: Bedroom Layout - Split; Walk-In Closet(s) Levels: Two Listing Terms: Cash; Conventional Pets Allowed YN: Yes Pets Allowed: No Restrictions Pool Features: Concrete; In Ground; Screen Enclosure Possession: Negotiable Roof: Flat; Tile Sewer: Public Sewer Utilities: Cable Available Water Access: No Fixed Bridge Water Source: Public Water View: Bay; Ocean Waterfront Features: Bayfront; Ocean Front Showing Requirements: Call Listing Agent; Showing Service Contingencies: Inspection Room Types: Great Room; Media Room Acreage Description: 1/4 To Less Than 1/2 Acre Lot

Room Information

Great Room Media Room

Documents

Seller's Property Disclosure (Signed by ›

Seller's Property Disclosure (Trustee 1) ›

Seller's Property Disclosure (Trustee 2) ›

Seller's 4Point Report ›

Seller's Wind Mitigation Report ›

Listing Office: Graber Realty Group LLC

Last Updated: February - 12 - 2026

640 S Mashta Drive, Key Biscayne, FL 33149- MLS# A11611809

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