The Best Key Biscayne Waterfront Homes for Sale

The Best Waterfront Key Biscayne Homes for Sale

Key Biscayne is one of Miami’s most exclusive residential areas. This 12-mile long island just off the coast of Brickell and Coconut Grove provides for luxurious waterfront homes as well as high-end Key Biscayne condos. Apart from its superb real estate options, the island is desired for its high-end lifestyle, safety, and the presence of one of Miami’s best public schools.

Key Biscayne homes are very desired by boaters because many of them are waterfront. Key Biscayne waterfront homes for sale are right on the ocean or on one of the canals with fast access to the ocean without any bridges in the way.

The Best Key Biscayne Waterfront Homes for Sale. DSG

In the last 18 Months (2016 and 2017 till June incl.)  the most affordable non-waterfront home sold for $1.25M while the most affordable waterfront home in Key Biscayne sold for $4.5M.

Current listings start at $1.4M for a home on a dry lot while Key Biscayne waterfront homes start selling at $4.6M

The Most Exclusive Key Biscayne Waterfront Homes For Sale

Please find below the most exclusive waterfront homes for sale in Key Biscayne. For more information on these Key Biscayne Mansions for Sale please contact David Siddons at +1.305.508.0899

7 Harbor Point

10,776 SF | 22,860 SF Lot | 7 Bedrooms | 9 Bathrooms
Listed for $20M

Broker Remarks:  Premier ultimate privacy, breathtaking ocean views, Private Beach & Private Dock, situated on Key Biscayne’s most exclusive & sought after street Harbor Point. This ultra-luxury modern Island Fusion residence provides the rare combination offering the finest in luxury living. Dramatic double height atrium welcoming you to 7 bedrooms, 9.5 bathrooms. Sleek and modern bar in the interior & two story cabana with Nana walls on the gorgeous infinity pool deck provide the optimal entertaining experience.

500 S Mashta Dr

11,149 SF | 23,814 SF Lot | 6 Bedrooms | 6 Bathrooms
Listed for $21M

Broker Remarks: Enjoy ocean and sunset views from this 2014 Mashta Island estate on a 23,814 SqFt oversized lot with 138 ft of water frontage. This custom-built home, inspired by Modern architect Richard Meier, features pure geometric lines and integrated open spaces with an emphasis on natural light. Unique features include a 3-story curved glass curtain wall, 14 skylights over a 27-ft high atrium, Nana Wall folding glass doors, elevator, gym, dock, staff quarters, 4-car garage, generator and smart home technology.


10,993 SF | 27,300 SF Lot | 8 Bedrooms | 8 Bathrooms
Listed for $21.5M

Broker Remarks: Enjoy breathtaking views of Biscayne Bay to downtown Miami from this unique and spectacular Florida tropical vernacular home designed by renowned architect Cesar Molina. Located on one of Key Biscayne’s most spectacular and private streets, this home with no expense spared and unparalleled details boasts custom handcrafted woodwork, impact glass, integrated terrazzo, fine wood and marble flooring throughout, Lutron lighting, generator, dock with lift, private beach entry, separate guest house with 4 car garage.

960 Harbor Dr

12,520 SF | 67,000 SF Lot | 9 Bedrooms | 10 Bathrooms
Listed for $33M

Broker Remarks: Two times larger then any property for sale on Key Biscayne, Buena Vista is a One-of-a-Kind sprawling compound on over 67,000 SF of lush sub-tropical grounds. The ultimate in privacy and recent ‘Home of The Day’ in The Wall Street Journal sits on a 1.67 acre peninsula with 720 ft of water frontage. The over 12k SF Home has unobstructed views of both the 440 acre Bill Baggs State Park and Key Biscayne Bay. The property has a Open Air Caribbean Style Cabana House, 16 seat private theatre/screening room, tennis and a deep water dock accommodates a 100+ ft. yacht.

400 S Mashta Dr

9,619 SF | 36,355 SF Lot | 5 Bedrooms | 6 Bathrooms
Listed for $34M

Broker Remarks: Coined The 1000 Year House by renowned architect Charles Pawley. Strategically built on a 36,355 SF peninsula with 480 feet of waterfront on prestigious Mashta Island. Unimpeded wide panoramic views of the ocean, Bill Baggs Park, Cape FL Light House and Stiltsville. This 9,619 SF home is comprised of 5 bedrooms and 6.5 bathrooms which include 2 master bedrooms, a theater, a gym, a library and staff quarters. Covered gazebo and massive terraces with a resort pool/spa.  Protected deep water dock accommodates a 100+ ft. yacht.

These are just a handful of homes for sale. Click on the link to see all on Key Biscayne Waterfront homes for sale

David Siddons is a top producing Miami Realtor who specializes in the Miami luxury market. David is known for his honest opinions and market analytics. He has written several investment guides for the Miami real estate market and has been quoted and interviewed by Bloomberg, The Miami Herald, CNBC, The Real Deal and Curbed

David Siddons | | +1.305.508.0899


These are the most commonly asked Google Real Estate Related questions

1. What are the Current Best New Condos in Miami?

If you want to hear in more details our opinions on the best new Miami new construction condos. Please read this article:Best New Construction Condos 2022-2023

2. What is the best New Construction Condo in Fort Lauderdale?

In our opinion, the Residences at Pier Sixty-six are certainly the most interesting and unique. Already well underway this 32 Acre project will be home to the first of its kind Marina where owners will be able to anchor up vessels up to a staggering 400 ft! For specifics of this project see our independent review of this project.

3. How can I compare the new luxury construction Condos to the best existing Luxury Condos in Miami? 

Our Best Luxury Condos in Miami article will prove to be very useful to those looking to compare the existing to the new. You may also want to watch this video which shows the performance of the best Condos in Miami over the last 15 years!


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David Siddons

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