$23,500,000
631 N Mashta Drive
Key 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
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
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 Room16.0022.0016.00Main22.00
Kitchen12.0011.0012.00Main11.00
Master Bedroom25.0020.0025.00Main20.00
Dining Room12.0014.0012.00Main14.00

IDX
Listing Office: Coldwell Banker

Last Updated: October - 28 - 2025

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