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4 Bedroom Homes for Sale in Key Biscayne, FL

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Welcome to your dedicated resource for 4 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 4 bedroom properties currently available below, or contact a local agent to discuss the details that matters most to your search.

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Search Key Biscayne, FL by Bedrooms

All 4 Bedroom Homes for Sale in Key Biscayne, FL

4 Beds ⋅ 4 Baths ⋅ A12049547 MLS ⋅ Island House BLDG.

Wake up to the sound of the waves and endless horizon views in this breathtaking direct oceanfront Key Biscayne sanctuary. Located in the highly sought-after Island House, this rare 3-bedroom-plus-den, 4-bath home spans nearly 2,400 square feet of seamless, open-concept design. Every room is kissed by natural light, with floor-to-ceiling windows that serve as a living canvas of the Atlantic. Pour a glass of wine and step onto your private balcony to watch the sunset, or take the elevator directly down to your quiet, pristine beach. Complete with a heated oceanfront pool, fitness center, elegant secure lobby, and covered parking, this is more than a home — it is a daily vacation.

200 Ocean Lane Dr Unit #501, Key Biscayne

4 Beds ⋅ 4 Baths ⋅ A12033340 MLS ⋅ Mashta Island BLDG.

Located on the exclusive and highly sought-after Mashta Island, this exceptional property offers a rare opportunity to build your dream home or enjoy the existing beautifully refurbished residence. The home features new bathrooms, updated flooring, and tasteful modern finishes throughout. Designed for relaxed Florida living, the spacious covered terrace overlooks a stunning mosaic-tiled pool, creating the perfect setting for entertaining or enjoying the tropical surroundings. A unique opportunity in one of Key Biscayne's most desirable neighborhoods. Easy to show.

669 S Mashta Dr, Key Biscayne

4 Beds ⋅ 5 Baths ⋅ A12027392 MLS ⋅ Ocean Club BLDG.

One of the rarest opportunities within Ocean Club Key Biscayne, this expansive renovated two-level 4,200 SF lanai residence combines the privacy and scale of a single-family home with the effortless luxury, security, and world-class amenities of a premier oceanfront condominium, all within a 52-acre private beachfront enclave. A private elevator opens directly into a bright and sophisticated first floor designed for both grand entertaining and refined everyday living. Multiple living areas, formal and informal dining spaces, an eat-in chef’s kitchen, powder room, and a first-floor guest suite are thoughtfully arranged to create a seamless flow throughout. Four oversized terraces blur the line between indoor and outdoor living, highlighted by a spectacular garden terrace that lives like a private backyard, offering direct access to the pool deck and beach beyond. The upper level is anchored by an expansive primary suite occupying its own private wing, creating a true retreat. Two additional bedroom suites, a generous family room, and a dedicated laundry room complete the second floor. Offered with private elevator entry and three parking spaces, residents enjoy access to Ocean Club’s unrivaled collection of amenities, including beachfront service, valet, fine dining, spa and wellness facilities, fitness center, tennis and padel courts, children's playground, and 24-hour gated security. Special assessment has been paid in full.

785 Crandon Blvd Unit #205/305, Key Biscayne

4 Beds ⋅ 3 Baths ⋅ A12025577 MLS ⋅ The Pyramids BLDG.

Very rarely available 4-bedroom, 2.5-bath penthouse residence with garage parking and panoramic island views from the living room and private balcony. Vaulted ceilings enhance the spacious living area, while recent remodeling updates add a fresh, modern feel throughout. Includes one-car garage parking with additional parking available. Community amenities include a clubhouse and BBQ area. Exceptional opportunity to own a rarely available penthouse residence in a desirable setting.

50 Ocean Lane Dr Unit #PH601, Key Biscayne

4 Beds ⋅ 4 Baths ⋅ A12019812 MLS ⋅ Gdns Of Key Biscayne BLDG.

Unique opportunity to own this extraordinary 4-bedroom plus den townhouse offering the lifestyle and comfort of a single-family home. Stunning and spacious living areas feature soaring high ceilings and expansive windows that fill the residence with natural light and showcase beautiful views of the lush landscaping. The spacious bedrooms, including two en-suite bedrooms, are thoughtfully located on the upper levels offering privacy from the main living and entertainment areas. The modern kitchen opens to an adjoining family room/den, which can be easily be enclosed to create a separate living space, office... Outdoor living is a true highlight, featuring a beautifully landscaped patio that creates a private oasis perfect for relaxing or entertaining. In addition, the residence offers a spectacular rooftop terrace with beautiful city and island views, ideal for enjoying breathtaking sunsets. Two car garage with additional storage space!! Ideally located just minutes from the beach, restaurants, shops, schools and all the best area amenities.

209 E Enid Dr Unit #36, Key Biscayne

4 Beds ⋅ 3 Baths ⋅ A12015581 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.

Experience refined island living in Key Biscayne, a true paradise just minutes from downtown Miami. This beautifully renovated residence offers 4 bedrooms, a private office and 3 bathrooms. The chef's kitchen showcases premium appliances and generous counter space, seamlessly flowing into bright family room, dining and living areas ideal for both everyday living and entertaining. Impact windows and doors enhance security and efficiency throughout. Step outside to your private tropical oasis featuring a heated saltwater pool, lush landscaping, and inviting outdoor spaces perfect for relaxation. Beach Club membership. A rare opportunity to own a slice of paradise in one of most exclusive island community.

301 Hampton Ln, Key Biscayne

4 Beds ⋅ 3 Baths ⋅ A12002746 MLS ⋅ Tropical Isle Homes Sub 4 BLDG.

A beautifully remodeled residence offering a refined blend of style, comfort, and seamless indoor-outdoor living. Recently upgraded with impact windows and doors installed in February with warranty, the light-filled interiors showcase travertine flooring, fresh paint, and updated lighting throughout. The renovated kitchen features stainless steel appliances, a wine cooler, and flows effortlessly into expansive living spaces, including a formal living room and a spacious dining and family area overlooking the pool and garden. A thoughtful split floor plan enhances privacy, highlighted by a generous primary suite with a custom walk-in closet and direct pool access, along with a secondary bedroom featuring its own bath and pool entry. Additional improvements include updated bathrooms, new AC ductwork with linear vents, an upgraded electrical panel, and a tankless water heater. Outdoors, a palm-lined yard surrounds the pool within fully fenced grounds with dual aluminum gates. A new aluminum roof installed in September 2024, two AC systems, sprinkler system, and ample parking complete this well-appointed home.

255 Ridgewood Rd, Key Biscayne

4 Beds ⋅ 4 Baths ⋅ A12010108 MLS ⋅ Biscayne Key Estates BLDG.

A truly exceptional Miami Modern Tropical residence set on a prime 8,010 SF corner lot, offering 3,549 SF of beautifully curated living space with 4 bedrooms and 3.5 bathrooms. Designed by architect Hervin Romney, a founding member of Arquitectonica, the home reflects a distinctive architectural vision inspired by the organic principles of Frank Lloyd Wright and the expressive forms of Antoni Gaudí, where art, design, and nature seamlessly converge. This residence captivates with its abundance of natural light, soaring high ceilings, fluid open spaces, and harmonious lines that create a sense of warmth, sophistication, and effortless flow throughout the main living areas. The beautifully remodeled kitchen and bar are a true centerpiece, featuring high-end appliances, premium finishes, refined craftsmanship, and a design that balances functionality with striking aesthetics. Step outside into your own private tropical retreat, where lush landscaping, graceful curved terraces, and a stunning swimming pool create an atmosphere of tranquility and escape. This outdoor sanctuary is perfect for both relaxation and entertaining. As an added privilege, the property includes membership to the Key Biscayne Beach Club, offering exclusive access to one of Miami’s most coveted coastal lifestyles. Key Biscayne is renowned for its pristine beaches, charming restaurants, and vibrant yet relaxed atmosphere—delivering a true island lifestyle just minutes from the city.

690 Warren Ln, Key Biscayne

4 Beds ⋅ 6 Baths ⋅ A11996672 MLS ⋅ Tidemark BLDG.

Exceptionally rare beachfront, standalone, townhouse in Key Colony, Key Biscayne. One of the few Miami-Dade properties with direct beach access. Spanning over 3,200 sqft, this 4-bed, 6-bath gem offers an unparalleled island lifestyle. Highlights include a private ground-floor cabana with new AC, impact windows & doors, a private elevator for easy access across its four levels, & Subzero paneled refrigerators. The rooftop terrace, complete with an outdoor wet bar, is perfect for enjoying sunset. With 6 parking spaces, including 2 in a private garage, providing added privacy & security. Located in the prestigious Key Colony, enjoy resort-style lifestyle with multiple pools, 12 tennis courts, a fitness center, & a spa. On-site amenities include a gourmet market, beach bar, & 24-hour security.

201 Crandon Blvd Unit #174, Key Biscayne

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

4 Beds ⋅ 4 Baths ⋅ A11970482 MLS ⋅ Commodore Club South BLDG.

Expansive 4-bedroom, 3.5-bathroom residence combining Units 401 and 403, offering 2,825 sq ft of beautifully remodeled living space. This bright and airy home features spacious open-concept living and dining areas, elegant tile flooring throughout, and floor-to-ceiling windows showcasing stunning ocean views. A wraparound balcony extends from the main living areas, creating seamless indoor-outdoor living, perfect for relaxing or entertaining. The thoughtfully designed layout offers both privacy and functionality, ideal for those seeking generous oceanfront living. Includes two assigned parking spaces. The building offers direct beach access, 24-hour security and concierge services, a social room, and high-speed Wi-Fi throughout all common areas. Residents enjoy a heated swimming pool (one per building), three lighted tennis courts, a fully equipped fitness center with sauna, car wash area, and full beach service.

199 Ocean Lane Dr Unit #401, Key Biscayne

4 Beds ⋅ 6 Baths ⋅ A11958326 MLS ⋅ Oceana Key Biscayne BLDG.

Extensively renovated and move-in ready 4-bedroom, 5.5-bath corner beachfront residence at Oceana Key Biscayne, offering refined architecture, thoughtful detailing, and seamless indoor-outdoor living. Floor-to-ceiling glass fills the home with natural light and frames ocean, bay, and village views enjoyed from every room and the wrap-around terraces. Architectural elements include shadow reveal wall details, layered architectural lighting and Res Italia custom doors. Custom millwork is carried throughout, with Giellesse Italian closet systems and shelving as well as Casabath Italian bathroom cabinetry. The primary suite offers sweeping ocean views, a spa-like bath with soaking tub overlooking the ocean, and two full primary bathrooms with walk-in showers. Three additional bedrooms enjoy beautiful and completely private views overlooking Biscayne Bay and the Village of Key Biscayne. The kitchen features Binova Italian cabinetry, Miele appliances, an oversized waterfall island, and a separate walk-in pantry with wine storage. The home is equipped with Savant and Lutron smart home systems with automated lighting, climate control, audio/video and blinds on every door and window. Unit has 4 parking spaces and 2 storage units. Oceana Key Biscayne provides world-class amenities including 24-hour concierge, beachfront fitness center and spa, 500ft of beach, oceanfront restaurant, tennis court, putting green, media room/cinema, valet, golf cart parking, and more.

350 Ocean Dr Unit #701N, Key Biscayne

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