Explore Key Biscayne, FL Homes for Sale

6+ Bedroom Homes for Sale in Key Biscayne, FL

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Welcome to your dedicated resource for 6+ bedroom homes for sale in Key Biscayne, FL. This page is your live portal for listings that match the exact homes for sale you demand, filtering out irrelevant properties to save you time. As a local Key Biscayne, FL agent, Marc Plotkin specializes in the unique market dynamics of this area, offering insights into amenities, home values, and investment potential. Start exploring the 6+ bedroom properties currently available below, or contact a local agent to discuss the details that matters most to your search.

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All 6+ Bedroom Homes for Sale in Key Biscayne, FL

6 Beds ⋅ 9 Baths ⋅ A12040744 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.

There are homes that are beautiful, and then there are homes that leave a lasting impression. This extraordinary brand-new 2026 designed by Kubik is one of a kind. With breathtaking architecture, exceptional attention to detail, and a floor plan designed for the way people truly live today, this is a home that immediately captivates from the moment you enter. Filled with natural light and generous open spaces, every room feels inviting, comfortable, and connected to the beauty that surrounds it. The residence offers 6 bedrooms, 8 full bathrooms, and 1 powder room, along with a spectacular rooftop terrace and an additional flexible space that could become a private gym, office, yoga studio, art room, or peaceful retreat. A dramatic spiral staircase serves as a beautiful architectural centerpiece, adding character and elegance to the home's design. The primary suite is particularly special...surrounded by lush gardens, it feels worlds away from everyday life. The spa-like bathroom further enhances the feeling of escaping to your own boutique resort. Created with family gatherings and entertaining in mind, the outdoor spaces are every bit as impressive as the interiors. The pool, spacious terraces, and barbecue area provide the perfect backdrop. Offered completely turnkey and finished with impeccable taste including a 2 car-garage and elevator, rarely does a newly constructed residence combine such striking architecture with so much warmth and soul, creating a masterpiece.

165 Hampton Ln, Key Biscayne

6 Beds ⋅ 5 Baths ⋅ A12035700 MLS ⋅ Biscayne Key Estates BLDG.

Elevated six-bedroom home on a quiet island street, centrally located. Double-high ceilings in the living room, marble flooring, wood floors in bedrooms, two en suite rooms. plus master bedroom with separate shower and tub. Upstairs family room, lush landscaping, pool, and elevated structure. Carport Garage plus two covered parking spaces. Additional storage downstairs for potential use as game room, open layout, and access to outside ideal for entertaining. Includes beach club membership.

650 Curtiswood Dr, Key Biscayne

7 Beds ⋅ 9 Baths ⋅ A12034564 MLS ⋅ Tropical Isle Homes Sub 3 BLDG.

Discover this striking contemporary residence, perfectly positioned on an oversized 9,258 SF lot on Harbor Drive, one of Key Biscayne’s most elegant and prestigious streets. Built in 2020, this architectural masterpiece offers 6 bedrooms plus a private office, 7 full baths, and 2 powder rooms across 4,565 SF of beautifully designed living space. Filled with natural light, the home showcases expansive open living areas, impressive volume throughout, and a sleek custom kitchen featuring bespoke cabinetry and top-of-the-line finishes. An elevator provides seamless access to all three levels, culminating in a spectacular rooftop terrace with captivating island views and refreshing bay breezes…a unique advantage of being just moments from the water. Designed for effortless indoor-outdoor living, the exterior features a resort-style saltwater pool and spa, summer kitchen, cabana bath, and generous entertaining areas surrounded by lush tropical landscaping. Additional highlights include , EV charger, and ample driveway parking. Combining exceptional design, comfort, and functionality, this residence embodies the very best of island living in one of Key Biscayne’s most distinguished locations. Just minutes from Miami, Key Biscayne is a hidden island paradise where pristine beaches, world-class outdoor recreation, and a relaxed yet sophisticated lifestyle come together in a way that few places can match.

425 Harbor Dr, Key Biscayne

6 Beds ⋅ 7 Baths ⋅ A12021891 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.

A unique architectural masterpiece in the heart of Key Biscayne, this brand-new contemporary residence by Praxis Architecture blends modern tropical luxury with exceptional craftsmanship and bespoke European finishes. Set on an oversized 9,000 SF lot, the residence offers 6 bedrooms, 6 full bathrooms, 1 half bath, and over 4,190 SF of curated living space designed around natural light, privacy, and seamless indoor-outdoor living. Imported Spanish porcelain and ceramic surfaces, Italian-engineered wood flooring, Portuguese interior doors, and refined finishes sourced from the United Kingdom create a warm and sophisticated architectural atmosphere throughout. Custom millwork — including the kitchen, bar, wardrobes, and integrated TV units — was exclusively crafted by a French maison specializing in ultra-luxury bespoke cabinetry. The residence highly designed kitchen is equipped with Wolf, Sub-Zero, and Miele appliances, smart-home automation, and integrated security. Outdoor spaces feature a spectacular 36-foot swimming pool, expansive terraces, summer kitchen, lush private garden patio, and multiple entertaining areas designed for effortless resort-style living. Located moments from tennis courts and the Key Biscayne Yacht Club, beaches, marinas, top-rated schools, and the best of island living, this residence represents one of Key Biscayne’s most thoughtfully designed brand new-construction homes - Expected to be finished in July 2026. Easy to Show!

238 Buttonwood Dr, Key Biscayne

6 Beds ⋅ 7 Baths ⋅ A12009875 MLS ⋅ Cape Fla Sub Sec 2 BLDG.

Embodying a true resort lifestyle, this rare Key Biscayne waterfront residence is defined by its extra-long, 134 ft water frontage and its elegant private ipe dock with direct canal-to-ocean access. The contemporary home, extensively rebuilt in 2018, is move-in ready, featuring 6 bedrooms, refined finishes, and tailored wood floors throughout. Outdoor living unfolds effortlessly with a sleek pool and spa and inviting spaces for intimate lounging, open-air dining and entertaining. Minutes from golf, tennis, padel, a protected state park and beaches, and within easy reach of Brickell, Coconut Grove, and Miami Airport. Nothing to add. Everything to enjoy. A MUST SEE.

120 Knollwood Dr, Key Biscayne

6 Beds ⋅ 8 Baths ⋅ A11986880 MLS ⋅ Biscayne Key Estates BLDG.

This spectacular property in Key Biscayne offers a luxurious and comfortable lifestyle. With three floors, expansive gardens, and a balcony with a wooden deck, it invites you to enjoy the outdoors in a sublime setting. High-end finishes, such as bathrooms clad in stone and natural, organic materials, add a touch of elegance. Featuring 6 bedrooms, 2 offices, a gym, and a spectacular kitchen with stone countertops and a wine cellar, this home is designed to meet every need. The pool with a water heater offers a relaxation oasis, while the closed garage for 2 cars and capacity for 5 more ensure convenience and security. Located on the best street in Key Biscayne.

610 Harbor Cir, Key Biscayne

7 Beds ⋅ 6 Baths ⋅ A11928646 MLS ⋅ Oceana Key Biscayne Condo BLDG.

Introducing a rare opportunity to own Villa 11, the largest and most coveted of only 12 exclusive villas at Oceana Key Biscayne. Situated on the largest lot in the community at 13,500 SF, this exceptional 7-bed, 5.5-bath residence offers unmatched privacy and space, with access to world-class amenities, including 500 FT of private beach, resort-style pools, on-site restaurant, fitness center, tennis court, and 24/7 security. Designed with a refined modern aesthetic, the villa is filled with natural light and features seamless indoor/outdoor living through expansive glass walls and lush landscaped surroundings, complemented by a private heated pool. Additional highlights include a gourmet chef’s kitchen, an expansive primary suite with dual walk-in closets and a private terrace, a library, maid’s quarters, and 4 parking spaces. Villa 11 offers unparalleled privacy while enjoying full access to Oceana’s world-class amenities.

111 Reef Ln, Key Biscayne

6 Beds ⋅ 6 Baths ⋅ A11918795 MLS ⋅ Biscayne Key Estates BLDG.

Stunning new-construction contemporary residence offering the perfect blend of modern design and luxurious comfort. This thoughtfully crafted home features 5 spacious bedrooms plus a private maid’s quarter, 4 full bathrooms, and an elegant powder room. Designed with high-end living in mind, the home showcases luxury finishes throughout, including custom built-in closets and fully equipped black kitchens with premium appliances—ready for immediate move-in. The open-concept layout highlights sleek architectural lines, abundant natural light, and exceptional craftsmanship at every turn. Step outside to your private summer kitchen with BBQ, perfect for entertaining and enjoying outdoor living year-round. A turnkey opportunity for those seeking style, sophistication, and exceptional functionality in a prime location. This contemporary masterpiece is truly move-in ready.

Key Biscayne

7 Beds ⋅ 8 Baths ⋅ A11912105 MLS ⋅ Hurricane Cove BLDG.

Situated on the exclusive island of Key Biscayne, this extraordinary 7,000sqft waterfront estate sits on a rare double lot located on Hurricane Harbor overlooking tranquil Manatee Lagoon. The property offers an unparalleled sanctuary of luxury and seclusion with features including a 4 car garage ideal for collectors, professionally landscaped yard well suited for outdoor entertaining, 7 bedrooms and 7.5 baths including live-in staff quarters. Expansive living areas flow seamlessly to large outdoor, covered porches becoming your al fresco living room for outdoor dining or relaxing and soaking in the beauty of the natural environment. As the sun hits the horizon, Sunsets light up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr notice

550 Harbor Dr, Key Biscayne

6 Beds ⋅ 7 Baths ⋅ A11909334 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.

Nestled in one of Miami’s most exclusive and sought-after enclaves, this stunning new construction epitomizes luxury living in Key Biscayne. Designed with sophistication and elegance, this home harmoniously blends contemporary style with the relaxed charm of island life. Expansive open-concept interiors with soaring 11-ft ceilings enhanced by floor-to-ceiling windows flood the home with natural light. Features include- a gourmet kitchen with Thermador appliances, imported Spanish tile and engineered wooden flooring, meticulously crafted custom cabinetry, refined carpentry & more. Outdoors, a large pool is surrounded by lush landscaping, several lounge areas, and a fully equipped summer kitchen—perfect for both entertaining and serene relaxation. Exp. delivery Q4 25' / start of Q1 26'.

110 Hampton Ln, Key Biscayne

9 Beds ⋅ 10 Baths ⋅ A11883349 MLS ⋅ Cape Florida Sub Sec 3 BLDG.

Private and prestigious waterfront estate featuring Panoramic views of Biscayne Bay and Pines canal. A dream property for the Yacht set, with 346 ft of water frontage & direct ocean access. The gated estate is one of the island’s largest, set on a lush 32,300 Sq.Ft lot, perfect for entertaining. Designed with the finest attention to detail, the home is extremely spacious "16,076 sf total", including 9 Bd., 8 Ba., library, office, theater, bar, spa with sauna, gourmet kitchen, marble & brazilian hardwood floors, security cameras, Lutron lighting & more. Note: The adjacent house is also available for sale, offering an additional 250 ft of water frontage on a separate 23,724 sq ft lot

260 Cape Florida Dr, Key Biscayne

6 Beds ⋅ 8 Baths ⋅ A11812864 MLS ⋅ Cape Florida Sub Sec 1 BLDG.

Spectacular and impeccably appointed modern residence situated on a 13,651 SF lot on prestigious Island Drive—one of Key Biscayne’s most elevated streets. Boasting a total of 8,011 SF, this 6-bedroom, 6 full bath + 2 half bath home is open, bright, and flooded with natural light throughout. Enjoy breathtaking water views and private access to the water in a setting that blends refined luxury with ultimate privacy. This residence showcases exquisitely curated, high-end designer finishes, a dramatic wine cellar, two expansive family rooms, and a closed 2-car garage. The outdoor living area is equally impressive, featuring a sleek summer kitchen and lush, professionally designed landscaping—ideal for elegant island living and entertaining. Per approved plans 6,405 SF under AC -8,682 SF Total

420 Island Dr, Key Biscayne

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