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360 Harbor Ln, Key Biscayne
$9,950,000
6 Beds ⋅ 6 Baths ⋅ A12104430 MLS ⋅ Biscayne Key Estates BLDG.
Discreetly set in the heart of Key Biscayne — one of Miami’s most coveted island communities — this elegant modern two-story residence offers 5,156 SF of total space on a lush 9,300 SF lot with 6 bedrooms, 5.5 bathrooms, and a private office, perfectly balancing refined design with the relaxed island lifestyle. A travertine staircase entry and wrap-around porch with modern glass railings set a sophisticated tone, leading inside to soaring ceilings, herringbone oak floors by Listone Giordano, floor-to-ceiling sliding doors, and Lutron lighting. The open-concept living, dining, and family areas flow seamlessly to the outdoors. The chef’s kitchen showcases a striking fluted marble island with curved-edge countertops, floor-to-ceiling cabinetry by Design It, and a full Wolf and Sub-Zero appliance suite. The primary suite features a private terrace, dual custom walk-in closets, a dry sauna, and a show-stopping bath with aquamarine quartzite sourced from ARCA, dual Waterworks vanities, and a frameless glass shower. Outside, a covered terrace with fluted wood-paneled ceiling, summer kitchen with built-in grill and pizza oven, and a heated saltwater pool with marble deck and Baja ledge create the ultimate island retreat. Professionally designed landscaping and enchanting exterior uplighting illuminate the lush gardens, creating picturesque views through the home’s expansive glass walls, particularly after sunset. Integrated sound and four AC units complete this exceptional offering.

360 Harbor Ln, Key Biscayne

315 Cypress Dr, Key Biscayne
$7,599,000
6 Beds ⋅ 8 Baths ⋅ A12107414 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.
New Construction (2023) in the heart of Key Biscayne, this 6-bedroom, 6-full and 2-half bath residence offers 4,050 SqFt of true island living. An elegant waterfall feature welcomes you at the entry. Inside, an Italian-designed kitchen with Sub-Zero and Wolf appliances anchors the home, and floor-to-ceiling drapery frames every room. Outdoors, a resort-style pool with a beach entry sits within lush greenery beside a full outdoor kitchen, made for effortless entertaining. The home is built to an exceptional standard of construction, is offered partially furnished, and includes two carport spaces. Moments from the beach, parks, fine dining, and Key Biscayne's top-rated schools, the residence pairs timeless design and exclusivity with an unparalleled island lifestyle.

315 Cypress Dr, Key Biscayne

755 Curtiswood Dr, Key Biscayne
$5,600,000
5 Beds ⋅ 5 Baths ⋅ A12085575 MLS ⋅ Biscayne Key Estates BLDG.
A unique offering in Key Biscayne! Beautifully renovated 5-bedroom, 5-bath residence offering 3,381 SF of living space, all on one level, set on an impressive 8,559 SF corner lot. Fully remodeled and move-in ready, the home features a stunning kitchen, beautifully renovated bathrooms, new flooring, impact windows, a recently renovated roof, and spacious, light-filled interiors. High ceilings enhance the living and dining areas, which overlook the gorgeous newly remodeled pool and lush tropical backyard. The kitchen features a breakfast area and direct access to the pool, while the family room provides an inviting space for everyday living and entertaining. The spacious primary suite includes a dressing area and beautifully renovated bath. Outdoors, enjoy a beautiful covered patio with lounge and BBQ areas, a newly remodeled pool, two garden areas, lush landscaping, generous green space, and exceptional privacy—an ideal setting for entertaining or relaxing year-round. A rare combination of 5 bedrooms, 5 baths, single-story living, a beautiful corner lot, and seamless indoor-outdoor spaces. An exceptional move-in-ready home designed to enjoy the Key Biscayne lifestyle.

755 Curtiswood Dr, Key Biscayne

119 Harbor Dr, Key Biscayne
$3,300,000
3 Beds ⋅ 2 Baths ⋅ A12082121 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.
Rare opportunity to own a 7,500 SF lot on coveted Harbor Drive, one of Key Biscayne’s most desirable residential streets. An exceptional homesite to build your dream island residence and create a custom home tailored to your lifestyle. The property currently features a classic Mackle home with 3 bedrooms, 2 baths, office/den, spacious garage, pool, outdoor entertaining area and lush tropical landscaping. Enjoy the existing home, renovate, or build new and take full advantage of this prime location. Moments from highly regarded public and private schools, beautiful beaches, parks, dining, shopping and recreational amenities. A coveted address offering the very best of Key Biscayne island living.

119 Harbor Dr, Key Biscayne

544 Warren Ln, Key Biscayne
$8,000,000
6 Beds ⋅ 6 Baths ⋅ A12079811 MLS ⋅ Tropical Isle Homes Sub BLDG.
New construction, this extraordinary custom Cape Dutch residence is a masterwork of timeless design, brought to life by Duncan and Heuser Design and Development, with interiors curated by James Duncan. Every detail, from the graceful gabled facade to the refined finishes within, reflects a rare devotion to craftsmanship and enduring elegance. Offering six generously proportioned bedrooms and six and a half beautifully appointed bathrooms, this home balances gracious scale with warm, livable comfort. Soaring ceilings, thoughtfully placed windows, and an effortless flow between rooms create a sense of light and openness throughout, while curated materials and bespoke millwork lend a distinctly luxurious character to every space. This is more than a house; it is a legacy residence, designed to be lived in beautifully for generations. A truly rare offering for the discerning buyer seeking timeless architecture, exceptional interiors, and uncompromising quality throughout.

544 Warren Ln, Key Biscayne

501 Bay Lane, Key Biscayne
$5,990,000
5 Beds ⋅ 5 Baths ⋅ A12074814 MLS ⋅ Tropical Isle Homes Sub 3 BLDG.
Prime location on one of Key Biscayne’s most exclusive residential streets, surrounded by some of the island’s most prestigious waterfront estates. An exceptional opportunity to own a substantial residence in the heart of Miami’s island paradise. Situated on a generous 10,000 SF lot, this light-filled home offers 4,759 SF of living space, five bedrooms, four full bathrooms and one half bathroom, providing wonderful space, privacy, and flexibility for today’s lifestyle. High ceilings and abundant natural light enhance the home’s generous proportions, while well-defined living, dining, and family areas create a comfortable and functional floor plan for both everyday living and entertaining. The interior spaces open to an expansive covered terrace, creating a natural connection to the outdoors and allowing for year-round enjoyment of South Florida living. Surrounded by lush, mature landscaping, the private backyard features a beautiful swimming pool and generous areas for outdoor dining, entertaining, and spending time with family and friends. Built in 1995 and complete with a garage, the residence can be enjoyed as it is today while offering endless possibilities to personalize and enhance over time. A rare opportunity to make this home your own while enjoying an exceptional address, privacy, and the extraordinary lifestyle that make Key Biscayne one of South Florida’s most desirable places to call home

501 Bay Lane, Key Biscayne

571 Glenridge Rd, Key Biscayne
$7,490,000
5 Beds ⋅ 7 Baths ⋅ A12025834 MLS ⋅ Tropical Isle Homes Sub BLDG.
BRAND-NEW CONSTRUCTION HOME IN ONE OF KEY BISCAYNE’S MOST PRESTIGIOUS AND PRIVATE ENCLAVES SURROUNDED BY LUSH TROPICAL LANDSCAPING! This exceptional Contemporary Residence offers 5 Bedrooms with a service area, 5.5 Bathrooms + a Cabana Bath. 3,768 Interior SF on a Lush Corner Lot on a quiet street. Soaring double-height ceilings & expansive impact glass windows that fill the interiors with abundant Natural Light. The Home offers Enhanced Privacy and an Impeccable Floor Plan designed for modern living & entertaining. Gourmet eat-in Kitchen with Custom Cabinetry & top-of-the-line Miele Appliances. Spacious Outdoor Spaces include a Private Rooftop Terrace with a summer kitchen, newly designed gardens, beautifully landscaped grounds, and a Resort-style Pool enveloped by Lush Greenery. Perfectly located just moments from the Beach, Parks, Restaurants & Key Biscayne’s top-rated schools, this residence combines timeless design, exclusivity & an unparalleled island lifestyle

571 Glenridge Rd, Key Biscayne

238 Buttonwood Dr, Key Biscayne
$8,500,000
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

524 Warren Ln, Key Biscayne
$3,690,000
5 Beds ⋅ 4 Baths ⋅ A11999112 MLS ⋅ Tropical Isle Homes Sub 1 BLDG.
Located in one of the most exclusive residential pockets of Key Biscayne, surrounded by multi-million-dollar estates, this beautifully designed 5-bedroom, 4 full bathroom home offers the perfect balance of privacy, functionality, and tropical lifestyle. The layout is thoughtfully distributed with a private primary suite on one side, a separate nanny/guest suite with its own bathroom, and a dedicated wing for the children’s bedrooms—ideal for both family living and entertaining. Just steps from top-rated schools and only 10 minutes from the beach, the property features a stunning outdoor space with a resort-style pool and a charming tiki bar, creating the ultimate South Florida oasis. A rare opportunity to own in a highly sought-after neighborhood where surrounding homes reach $10M+.

524 Warren Ln, Key Biscayne

640 S Mashta Dr, Key Biscayne
$16,800,000
4 Beds ⋅ 4 Baths ⋅ A11990382 MLS ⋅ Mashta Island BLDG.
Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate

640 S Mashta Dr, Key Biscayne

741 Harbor Dr, Key Biscayne
$7,390,000
6 Beds ⋅ 7 Baths ⋅ A11976789 MLS ⋅ Biscayne Key Estates BLDG.
Refined 3-story modern contemporary residence on an oversized, beautifully landscaped corner lot along Key Biscayne’s prestigious Harbor Drive, just 15 minutes from the Brickell Financial District, and featuring a spectacular rooftop terrace. This 5,328 total SF home offers 6 bedrooms, 4 full baths, and 3 half baths, thoughtfully designed for both elegant living and effortless entertaining. A grand entry with a stylish pivot door welcomes you into light-filled interiors with soaring ceilings, marble floors in the social areas, and wire-brushed white oak flooring upstairs. Panoramic impact windows and multiple terraces create seamless indoor-outdoor flow. The resort-style backyard features a heated saltwater pool with waterfall and inviting lounge areas. The Mia Cucina chef’s kitchen anchors the main living space with a marble waterfall island, custom cabinetry, and premium appliances including Wolf induction cooktop/ovens, Sub-Zero refrigeration, and Asko dishwasher. Smart home technology includes Savant automation, Lutron lighting, whole-home audio, and integrated security. The expansive primary suite offers a sitting area, private balcony, covered terrace, beverage station, custom walk-in closets, and a spa-inspired marble bath. A dedicated office, upstairs family room, staff quarters, and laundry room add flexibility. The rooftop entertainment deck includes a summer kitchen with Wolf grill, Sub-Zero refrigeration, lounge areas, and a half bath—ideal for sunset gatherings.

741 Harbor Dr, Key Biscayne

110 Hampton Ln, 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

545 Sabal Palm, 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

31 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

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