Features & Amenities

Interior

  • Other Interior Features

    Bidet, Built-in Features, Entrance Foyer, Elevator, High Ceilings, Pantry, Storage, Soaking Tub, Vaulted Ceiling(s), Walk-In Closet(s)

  • Total Bedrooms

    7

  • Bathrooms

    7

  • 1/2 Bathrooms

    1

  • Cooling YN

    YES

  • Cooling

    Electric

  • Heating YN

    YES

  • Heating

    Electric

  • Pet friendly

    Yes

Exterior

  • Garage

    Yes

  • Garage spaces

    4

  • Construction Materials

    Block

  • Other Exterior Features

    Balcony

  • Parking

    Attached, Covered, Driveway, Garage, Garage Door Opener, Guest

  • Patio and Porch Features

    Patio

  • Pool

    Yes

  • Pool Features

    In Ground, Association, Private

  • Waterfront YN

    YES

  • View

    Bay, Water

Area & Lot

  • Lot Features

    Waterfront

  • Lot Size(acres)

    0.46

  • Property Type

    Residential

  • Property Sub Type

    Single Family Residence

Price

  • Sales Price

    $21,800,000

  • Tax Amount

    $150,580

  • Financing Options

    Cash

  • Sq. Footage

    6,240

  • Price/SqFt

    $3,493

HOA

  • Association

    No

School District

  • Elementary School

    Key Biscayne K-8

  • Middle School

    Ponce De Leon

  • High School

    Coral Gables

Property Features

  • Stories

    3

  • Association Amenities

    Pool, Boat Dock

  • Senior Community YN

    YES

  • Sewer

    Public Sewer

  • Water Source

    Public

Schedule a Showing

Showing scheduled successfully.

<
>
IN PERSON
VIA CHAT

What is 3 + 4 ?


Change time

Mortgage calculator

Estimate your monthly mortgage payment, including the principal and interest, property taxes, and HOA. Adjust the values to generate a more accurate rate.

Your payment

Principal and Interest:

$

Property taxes:

$

HOA fees:

$

Total loan payment:

$

Total interest amount:

$

Location

County

Miami-Dade

Elementary School

Key Biscayne K-8

Middle School

Ponce De Leon

High School

Coral Gables

Listing Courtesy of Brigitte Nachtigall, One Sotheby's International Realty

RealHub Information is provided exclusively for consumers' personal, non-commercial use, and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change or withdrawal. RealHub website owner shall not be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless.

Agent Hals Blanc

FOUNDER

Hals Blanc

Call Hals today to schedule a private showing.


* Listings on this website come from the FMLS IDX Compilation and may be held by brokerage firms other than the owner of this website. The listing brokerage is identified in any listing details. Information is deemed reliable but is not guaranteed. If you believe any FMLS listing contains material that infringes your copyrighted work please click here to review our DMCA policy and learn how to submit a takedown request.© 2024 FMLS.
Welcome to an extraordinary European style waterfront estate, where luxury and elegance meet the tranquility of coastal living.This 3-story custom-built masterpiece boasts a spectacular social area with soaring high ceilings, creating an ambiance of grandeur and openness. This estate features 7 lavish bedrooms,7.5 opulent bathrooms, private office, cozy family room, extraordinary chef’s kitchen all designed with meticulous attention to detail and the finest finishes. Step into a world of breathtaking and captivating views, where every window frames the stunning panorama of the bay and the iconic Miami skyline. The outdoor living spaces invite you to enjoy serene and unforgettable sunsets. A sanctuary of sophistication and comfort with dock, garages, elevator, and an unparalleled lifestyle.

230 Harbor Drive

Message successfully sent.

What would you like to know?

What is 3 + 4 ?

I agree to receive email communication and understand I can unsubscribe at any time.

I agree to be contacted by Options 1 Realty via call, email, and text for real estate services. To opt out, you can reply 'stop' at any time or reply 'help' for assistance. You can also click the unsubscribe link in the emails. Message and data rates may apply. Message frequency may vary. Privacy Policy

Related Properties

BRING ALL OFFERS! Exceptional waterfront opportunity in prestigious Key Biscayne. Set on a 15,000 sq. ft. lot with 100 feet of water frontage, this residence offers open-water views, direct Biscayne Bay access, and no fixed bridges to the ocean. Currently undergoing a complete renovation, it will feature modern finishes, impact windows and doors, new systems, spacious living areas, a chef's kitchen, and luxurious bathrooms. Enjoy a private dock, deep-water access, pool, breathtaking sunsets, and an unmatched boating lifestyle in one of South Florida's most desirable communities One of the most compelling waterfront opportunities currently available in all of Key Biscayne. Perfectly positioned on the exclusive and highly coveted Mashta Island, this exceptional property offers approximately 100 feet of prime waterfront, deep-water dockage, direct Biscayne Bay access, and no fixed bridges to the Atlantic Ocean, creating an unparalleled opportunity for boating enthusiasts and yacht owners. Mashta Island has long been recognized as one of South Florida's most prestigious residential enclaves, offering exceptional privacy, quiet tree-lined streets, oversized waterfront estates, and immediate access to the open waters of Biscayne Bay while remaining only minutes from Brickell, Downtown Miami, Coconut Grove, Coral Gables, Miami Beach, and Miami International Airport. Very few neighborhoods offer this combination of island living, security, boating lifestyle, and proximity to the city's financial and cultural centers. The residence is currently on renovation designed to transform the property into a  contemporary waterfront estate while preserving the exceptional value of its location and oversized waterfront parcel. This is substantially more than a cosmetic renovation. The project includes major improvements throughout the residence, including redesigned living spaces, upgraded electrical and plumbing systems, new HVAC equipment, impact-resistant windows and doors, premium flooring, modern architectural lighting, designer finishes, and a completely reimagined interior intended to meet today's luxury lifestyle expectations. Upon completion, the home is anticipated to offer spacious entertaining areas, beautifully appointed bedroom suites, bathrooms, an impressive chef's kitchen featuring custom cabinetry, premium appliances, elegant countertops, and thoughtfully designed indoor-outdoor living spaces that maximize the spectacular waterfront setting. The property's exceptional orientation provides beautiful water views and unforgettable sunsets while creating an ideal environment for entertaining, family gatherings, and year-round outdoor living. The expansive backyard offers generous space surrounding the swimming pool together with multiple areas for outdoor dining, lounging, and enjoying the waterfront lifestyle that has made Key Biscayne one of the most desirable residential communities in South Florida. For boating enthusiasts, few properties can offer the combination of oversized waterfront, private dockage, deep-water access, and unrestricted navigation to Biscayne Bay and the Atlantic Ocean without fixed bridges. Whether accommodating a large sport yacht, cruising yacht, center console, or multiple vessels, the waterfront configuration provides flexibility rarely available in today's market. Key Biscayne continues to be recognized as one of South Florida's most exclusive island communities, celebrated for its pristine beaches, excellent schools, private clubs, marinas, tennis facilities, parks, bicycle paths, restaurants, and relaxed coastal lifestyle. Residents enjoy the unique advantage of living within a peaceful island environment while remaining only a short drive from Miami's world-class shopping, fine dining, cultural institutions, private airports, international business centers, and professional sports venues. The supply of premium waterfront homes on Mashta Island remains extremely limited due to the neighborhood's established character and finite number of waterfront parcels. As a result, opportunities to acquire large waterfront lots with substantial dockage and direct ocean access continue to be highly sought after by both domestic and international buyers. The combination of location, waterfront dimensions, boating accessibility, oversized lot, and comprehensive renovation creates a property with exceptional long-term appeal. Showings are strictly by appointment with the Listing Agent.. All measurements, dimensions, lot size, square footage, waterfront frontage, dock dimensions, room sizes, zoning, taxes, permits, specifications, plans, renderings, and property information are believed to be accurate but are not guaranteed and should be independently verified by Buyer. Renderings, conceptual plans, floor plans, specifications, and construction updates are available upon request when applicable. This offering represents an extraordinary opportunity to secure one of Key Biscayne's  waterfront residences . Whether as a primary residence, seasonal retreat, or long-term investment, this property combines one of South Florida's most desirable locations with an outstanding boating lifestyle and exceptional future value. Bring All Offers.
#B26058354

Key Biscayne

631 N Mashta Drive

4 Beds

4 Baths

2,255 Sq.Ft.

$18,500,000

MLS#: B26058354

 - property

Send a message

Message successfully sent.

Your message

What is 3 + 4 ?

Reason for contacting?

I agree to receive email communication and understand I can unsubscribe at any time.

I agree to be contacted by Options 1 Realty via call, email, and text for real estate services. To opt out, you can reply 'stop' at any time or reply 'help' for assistance. You can also click the unsubscribe link in the emails. Message and data rates may apply. Message frequency may vary. Privacy Policy

Sign Out

Virtual Assistant

Would you like to take the next step with this property? We can help you schedule a showing or virtual tour, or send you more details.

Yes, I would like more information.

Thank You for Your Reply, One of Our Agents will contact you as soon as possible

No, maybe later.

Thank you, you can always contact me via email, phone number or through the contact form.

Realhub AI

Lucy - Your AI-Powered Realtor

Update Your Temporary Password

Personalize your search

Enter your email and we'll notify you immediately when new listings match what you're looking for.

or enter email address

Already have an account ? Login here

Continue your home search

I agree to receive communications and understand I can unsubscribe at any time.

I agree to be contacted by Options 1 Realty via call, email, and text for real estate services. To opt out, you can reply 'stop' at any time or reply 'help' for assistance. You can also click the unsubscribe link in the emails. Message and data rates may apply. Message frequency may vary. Privacy Policy

Already have an account ? Login here

We use cookies

We use cookies primarily for analytics to enhance your experience. By accepting, you agree to our use of these cookies. You can manage your preferences or learn more about our cookies policy.