$23,500,000
631 N Mashta DriveKey Biscayne, FL 33149
MLS# RX-11060323
4 beds | 4.1 baths | 2255 sqft

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Property 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:
Details
Maps
Contract Information
Listing Date: 2025-02-05
Status: Active
Original List Price: 23500000
Auction: No
List Price: $23,500,000
Current Price: $23,500,000
List Price/SqFt: 10421.29
General Property Description
Type: Single Family Detached
Governing Bodies: None
Main Level Bedrooms: 4
Total Bedrooms: 4
Main Level Bathrooms: 4
Baths - Full: 4
Baths - Half: 1
Baths - Total: 4.1
Property Condition: Resale
Year Built: 1958
SqFt - Total: 3720
SqFt - Living: 2255
SqFt Source: Appraisal
Gated Community: No
Covered Spaces: 2
Open Parking Spaces: 5
Homeowners Assoc: None
Association Deposit: No
Membership Fee Required: No
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
Waterfront: Yes
Waterfrontage: 100
Front Exp: East
Private Pool: Yes
Pets Allowed: Yes
Pets on Premises: No
Total Floors/Stories: 1
Location Tax Legal
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
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
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.
Room Information
| Room Name | Length | Width | Length | Level | Width |
| Living Room | 16.00 | 22.00 | 16.00 | Main | 22.00 |
| Kitchen | 12.00 | 11.00 | 12.00 | Main | 11.00 |
| Master Bedroom | 25.00 | 20.00 | 25.00 | Main | 20.00 |
| Dining Room | 12.00 | 14.00 | 12.00 | Main | 14.00 |
Listing Office: Coldwell Banker
Last Updated: October - 28 - 2025

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Wednesday 17th of December 2025 05:45 PM