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631 N Mashta Drive, Key Biscayne, FL 33149

$23,500,000
Property Type: Residential Bedrooms: 4 Baths: 4.1 Square Footage: 2,255 Status: Active
Current Price: $23,500,000 Last Modified: 10/28/2025

Description

BRING ALL OFFERS - Waterfront Dream Home in the Making! Key Biscayne's Ultimate Boater's Paradise - Fully Renovated Luxury Residence Coming Soon This is a rare and exceptional opportunity to own a like-new, fully renovated luxury home in one of Key Biscayne's most exclusive waterfront enclaves. Currently under an extensive renovation with expected completion in approximately 5 months, this residence is being reimagined with the highest standards of modern design, comfort, and functionality. A Complete Transformation - Inside and Out This is not just a cosmetic update — this is a down-to-the-studs, full-scale renovation that will result in a completely refreshed and reimagined home. Upon completion, this property will boast:

Supplements: "All-new flooring throughout with elegant, high-end finishes "Smooth new ceilings with upgraded lighting and architectural detailing "Completely new electrical and plumbing systems, built to current codes and standards "A redesigned layout to enhance flow, functionality, and natural light "Spacious bedrooms and luxurious bathrooms, featuring premium fixtures, modern vanities, custom tile work, and spa-like finishes "A chef's dream kitchen with custom cabinetry, oversized island, quartz countertops, and top-of-the-line appliances from leading brands "Brand-new air conditioning system for efficient, zoned climate control "Impact-resistant windows and doors . "Thoughtfully designed interior and exterior spaces, perfect for both relaxed family living and stylish entertaining. Waterfront Living at Its Finest Set on a 15,000 sq. ft. lot, this home offers spectacular water views and seamless access to Biscayne Bay. Boating enthusiasts will appreciate: "A private dock with deep water access, ideal for accommodating a large boat or yacht "No bridges to the ocean, allowing for effortless navigation to open waters "Direct bay access, just minutes from the Atlantic "An expansive backyard with space for outdoor dining, lounging, with pool "Unforgettable sunsets over the bay, right from your own backyard oasis. Prime Key Biscayne Location Located in a prestigious and tranquil section of Key Biscayne, this home offers both privacy and convenience. Enjoy world-class beaches, top-rated schools, parks, tennis clubs, fine dining, and more  all just moments away from the heart of Miami. Whether you're searching for a personal waterfront sanctuary or a savvy long-term investment, this remarkable property delivers the best of luxury, lifestyle, and location  with the added bonus of a brand-new renovation built for modern living. Now is the time to secure this extraordinary property before completion. Bring all offers - this one won't last.

More Information MLS# RX-11060323

Contract Information

Auction: No List Price/SqFt: 10421.29 Listing Date: 2025-02-05 Status: Active Original List Price: 23500000 List Price: $23,500,000 Current Price: $23,500,000

General Property Description

Governing Bodies: None Main Level Bedrooms: 4 Main Level Bathrooms: 4 Property Condition: Resale SqFt - Total: 3720 Waterfront: Yes SqFt Source: Appraisal Waterfrontage: 100 Gated Community: No Covered Spaces: 2 Homeowners Assoc: None Pets Allowed: Yes Pets on Premises: No Front Exp: East Open Parking Spaces: 5 Association Deposit: No Membership Fee Required: No Private Pool: Yes Type: Single Family Detached Total Bedrooms: 4 Baths - Full: 4 Baths - Half: 1 Baths - Total: 4.1 Year Built: 1958 SqFt - Living: 2255 Subdivision: MASHTA ISLAND Legal Desc: MASHTA ISLAND PB 60-93 LOT 7 BLK 1 LOT SIZE 100.000 X 150 OR 17980-3315 0198 4 Total Floors/Stories: 1

Location, Tax & Legal

Geo Area: DADE Country: United States State/Province: FL HOPA: No Hopa Short Sale: No Tax Year: 2024 Zoning: 0101 Short Sale A/U: N/A Short Sale Addendum: No Taxes: 99103 Special Assessment: No REO: No Area: 2290 County: Miami-Dade Parcel ID: 2452050080070 Street #: 631 Street Dir: N Street Name: Mashta Street Suffix: Drive Zip Code: 33149 Geo Lat: 25.685894 Geo Lon: -80.173967

Office/Member Info

DXORIGMLNO: RX-11060323 DXORIGMLSID: RML

Construction

Brick: 1 Concrete: 1

Master Bedroom/Bath

None: 1

View

Intracoastal: 1 Pool: 1

Rooms

None: 1

Waterfront Details

Intracoastal: 1 No Fixed Bridges: 1 Seawall: 1

Equip/Appl Included

None: 1

Private Pool Description

Equipment Included: 1 Inground: 1

Cooling

Central: 1

Heating

Central: 1 Electric: 1

Exterior Features

Covered Patio: 1 Open Patio: 1

Furnished

Unfurnished: 1

Interior Features

None: 1

Flooring

Concrete: 1

Porch/Patio/Balcony

Patio: 1

Utilities

None: 1

Parking

Carport - Attached: 1 Driveway: 1

Restrict

None: 1

Subdiv. Amenities

Boating: 1

Boat Services

Private Dock: 1

Terms Considered

Cash: 1 Conventional: 1

Possession

At Closing: 1 Funding: 1

Storm Protection

None: 1

Taxes

City/County: 1 No Homestead: 1

Property Features

Construction: Brick; Concrete View: Intracoastal; Pool Waterfront Details: Intracoastal; No Fixed Bridges; Seawall Private Pool Description: Equipment Included; Inground Exterior Features: Covered Patio; Open Patio Interior Features: None Furnished: Unfurnished Rooms: None Parking: Carport - Attached; Driveway Restrict: None Flooring: Concrete Heating: Central; Electric Cooling: Central Boat Services: Private Dock Terms Considered: Cash; Conventional Utilities: None Storm Protection: None Taxes: City/County; No Homestead Possession: At Closing; Funding

Room Information

Living Room Length: 16.00 Width: 22.00 Length: 16.00 Level: Main Width: 22.00 Kitchen Length: 12.00 Width: 11.00 Length: 12.00 Level: Main Width: 11.00 Master Bedroom Length: 25.00 Width: 20.00 Length: 25.00 Level: Main Width: 20.00 Dining Room Length: 12.00 Width: 14.00 Length: 12.00 Level: Main Width: 14.00
Listing Office: Coldwell Banker
IDX
Last Updated: October - 28 - 2025
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