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$26,000,000
4 Beds 6 Baths A11915787 MLS Grand Bay Tower BLDG.
Dominating the Key Biscayne skyline, this Geoffrey Bradfield–designed penthouse is a rare display of power, prestige, and absolute luxury. Encompassing 13,630 sq. ft. with 10,421 sq. ft. under air and 3,000+ sq. ft. of oceanfront terraces, it commands 100 feet of unobstructed beachfront with sweeping sunrise and sunset views. Directly adjacent, the $100M+ newly reimagined Ritz-Carlton and its brand-new Beach Club sit at your footsteps, elevating exclusivity to a world-class level. Inside, soaring ceilings showcase a showpiece chef’s kitchen, grand dining, four-private en-suites, a refined executive office, staff quarters, and couture-caliber closets. Includes five premium parking spaces and five oversized private storage cages. A true trophy residence at the apex of coastal luxury.

430 Grand Bay Dr Unit #PH-1AN, Key Biscayne

$8,950,000
4 Beds 7 Baths A11911813 MLS Oceana Key Biscayne BLDG.
Stunning Corner Residence at Oceana Key Biscayne Beautiful, light-filled 4-bedroom residence with staff quarters and 6.5 bathrooms, ideally situated in the exclusive Oceana Key Biscayne. This exceptional corner home features marble and wood flooring, custom-built closets in every bedroom, motorized blinds with sheer window treatments, and expansive wraparound terraces showcasing breathtaking ocean views. Oceana Key Biscayne offers world-class amenities, including direct beach access, resort-style pools, a state-of-the-art fitness center, spa, tennis courts, an on-site restaurant, concierge services, and 24-hour security. The residence is now vacant, ready for its new owner, and easy to show. A true island sanctuary offering the finest in luxury beachfront living.

350 E Ocean Dr Unit #301N, Key Biscayne

$19,450,000
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

$6,900,000
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

$29,500,000
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

$7,950,000
5 Beds 5 Baths A11855412 MLS Tropical Isle Homes Sub 2n BLDG.
Key Biscayne – Architectural Masterpiece On a secluded 9,633 sq.ft. lot near Harbor Drive, this 6,800 sq.ft. residence by Village Architects blends modern elegance with tropical serenity. A dramatic double wood door opens to a lap pool reminiscent of Amanpuri, framed by 2,000 sq.ft. of covered entertainment areas. Inside, a glass-walled foyer, soaring ceilings, and a sculptural staircase set the tone. Formal dining, reception, and a chef’s kitchen flow seamlessly for refined living. The master suite offers vaulted ceilings, walk-in closets, a spa bath, and an adjacent office, complemented by three additional en-suite bedrooms. Rare offering of design,privacy & resort-style living in the heart of Key Biscayne.Please view unbranded matterport t, floor plans & video.

545 Sabal Palm, Key Biscayne

$12,485,000
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

$9,800,000
6 Beds 7 Baths A11782945 MLS Cape Florida Sub Sec 3 BLDG.
Exceptional Estate in Key Biscayne. Discover an extraordinary opportunity to own a stunning modern residence on over 19,000 sq ft lot—an exceptional find in the heart of Key Biscayne. This expansive property offers a generous backyard, perfect for outdoor living, entertaining, or creating a private oasis where kids can play freely. The home features 6 bedrooms, 6.5 bathrooms, a dedicated office, and high ceilings that enhance the bright, open ambiance. Designed with a sleek, modern aesthetic, the interior boasts luxurious finishes and thoughtful amenities, including a wine cellar, pool, and a 2-car garage. Located on a quiet street, this residence blends privacy with convenience. Experience the best of island living with unparalleled space and style.

31 Island Dr, Key Biscayne

$19,500,000
6 Beds 10 Baths A11731927 MLS Cape Fla Sub Sec 2 BLDG.
Discover unparalleled luxury at 960 Mariner Dr, Key Biscayne. This new architectural gem offers over 9,640 SF of living space, 7742 SF under air conditioning, on a 15,381 SF lot with 106 feet of water frontage. Featuring 6 bedrooms, 8 baths, and 2 half baths, the open-concept design boasts floor-to-ceiling glass, providing stunning views. A 4-person elevator connects all levels, including a third-floor terrace with 360-degree views of the water and Miami skyline. The chef’s kitchen, resort-style pool, summer kitchen, and private dock with direct Bay access make it perfect for entertaining. Boating enthusiasts will appreciate the ski boat crane. This estate combines modern elegance, privacy, and top-tier amenities in one of Miami’s most exclusive areas.

960 Mariner Dr, Key Biscayne