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$9,950,000
360 Harbor Lane
Key Biscayne, FL 33149
MLS# A12104430
6 beds  |  6 baths  |  5156 sqft


Contemporary residence featuring floor-to-ceiling glass windows, stone cladding, a standing-seam metal roof, integrated glass terrace railings, and stone staircases
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Contemporary residence featuring floor-to-ceiling glass windows, stone cladding, a standing-seam metal roof, integrated glass terrace railings, and stone staircases Modern exterior featuring floor-to-ceiling glass walls, stacked stone facade, expansive second-level glass balcony railings, and a rectangular swimming pool set within a manicured landscape Living area featuring expansive floor-to-ceiling black-framed glass walls, recessed ceiling lighting, and built-in shelving Floor-to-ceiling sliding glass walls, light-toned chevron-patterned wood-finish flooring, sculptural multi-tier chandelier, and recessed ceiling lighting Open-concept kitchen featuring dark floor-to-ceiling cabinetry, a central island with a waterfall countertop, recessed ceiling lighting, multi-pendant illumination, and expansive floor-to-ceiling sliding glass walls Gourmet kitchen featuring custom dark cabinetry, quartz countertops, a central island with a fluted pillar detail, herring-bone pattern wood-finish flooring, and integrated stainless steel appliances Gourmet kitchen featuring floor-to-ceiling dark wood cabinetry, a large central island with a fluted stone base, herringbone wood-finish flooring, built-in double ovens, and contemporary pendant lighting Covered outdoor patio with wood-slatted ceiling, composite decking, recessed lighting, glass railing, and in-ground pool Modern architectural residence featuring floor-to-ceiling windows, stone exterior cladding, a second-story glass-railed balcony, an in-ground swimming pool, and manicured landscaping Modern two-story architectural exterior featuring stone tile cladding, wide-plank wood-finish soffits, expansive glass sliding doors, and a glass-paneled staircase railing Floor-to-ceiling black-framed windows, herringbone-pattern wood-finish flooring, recessed lighting, and integrated drapery tracks Elevated outdoor terrace featuring synthetic turf flooring, frameless glass railings, and a covered ceiling with slatted wood-finish detailing Bathroom featuring dual-sink vanity with stone countertop, walk-in shower with stone surround, brass-finish fixtures, and integrated sauna Floor-to-ceiling windows with black frames, wood-finish flooring, and recessed ceiling lighting Dual-sink vanity with a solid-surface countertop, rectangular under-mount basins, polished metal gooseneck faucets, and a full-width wall mirror Floor-to-ceiling glass sliding doors, wood-finish herringbone flooring, built-in floor-to-ceiling cabinetry, recessed lighting, and a globe pendant fixture Floor-to-ceiling windows with black frames, wood-finish flooring, and a wall-mounted floating desk Covered patio with horizontal wood-slat ceiling, recessed lighting, composite decking, and glass panel railing overlooking a landscaped yard Modern terrace featuring natural stone wall cladding, wood-finish decking, black-framed floor-to-ceiling glass panels, and a frameless glass railing Outdoor terrace featuring wood-finish decking, glass panel railing, and a built-in outdoor kitchen with a stainless steel grill and stone-style cabinetry Aerial perspective featuring a metal roof, rectangular swimming pool, integrated patio pergola, and mature landscaping Contemporary multi-level exterior featuring floor-to-ceiling glass walls, sleek glass balcony railings, stone-finish cladding, and a private swimming pool with integrated hardscaping Aerial perspective of a coastal residential area featuring multi-level dwellings, terracotta tile roofing, mature canopy trees, and expansive water frontage Aerial perspective of a multi-story residence featuring a dark metal roof, expansive glass windows, and mature tropical landscaping within a coastal environment Aerial perspective featuring a metal roof structure, terracotta tile roofing, mature landscaping, and proximity to the coastline

Property Description
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.

Details
Maps
Documents
Contract Information
Comp Sale YN: No
Occupant Type: Call Listing Agent
Listing Date: 2026-10-19
Status: Active
Original List Price: 9950000
List Price: $9,950,000
Current Price: $9,950,000
Location and Legal
County Or Parish: Miami-Dade
County Parish Name: Miami-Dade
City Name: Key Biscayne
Municipal Code: 24
Postal Zip: 33149
Subdivision Number: 1
Flood Zone: AE
Country: United States
Street Number: 360
Street Name: Harbor
Street Suffix: Lane
State Or Province: FL
Postal Code: 33149
Postal Code +4: 1712
Subdivision Name: BISCAYNE KEY ESTATES
Area: 2520
Elementary School: Key Biscayne K-8
Middle Or Junior School: Ponce De Leon
High School: Coral Gables
Parcel Number: 2452050011490
Zoning: 0100
General Property Information
Living Area Main: 4341
Lot Size Dimensions: 9300
Attached Carport YN: Yes
Lot Size Area: 9300
Senior Community YN: No
Outdoor Living Spaces YN: Yes
Furnished: Unfurnished
Stories Total: 2
Pool Private YN: Yes
Property Sub Type: Single Family Residence
Bedrooms Total: 6
Bathrooms Total: 6
Bathrooms Full: 5
Bathrooms Half: 1
Building Area Main: 5156
Year Built: 2025
Carport YN: 1
Carport Spaces: 2
Covered Spaces: 2
Lot Size Acres: 0.21
Direction Faces: Northeast
Financial Information
Estimated Monthly Assoc Recurring Fee: 0
Membership Fee Required YN: No
Tax Annual Amount: 31314
Tax Year: 2025
Tax Legal Description: 5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 3 BLK 10 LOT SIZE 8000 SQ FT OR 12488-3411 0485 4 COC 24947-2228 09 2006 5
Office/Member Information
DXORIGMLSID: SEF
Amenities
None: 1
Dining Area
Dining/Living Room: 1
Formal Dining: 1
Kitchen Dining: 1
Entry Information
Entry Level: 1
Exterior Features
Built-in Barbecue: 1
Lighting: 1
Flooring
Marble: 1
Wood: 1
Parking Features
Driveway: 1
Paver Block: 1
Attached Carport: 1
Carport: 1
Property Condition
Resale: 1
Possession
Negotiable: 1
Sewer
Public Sewer: 1
Special Information
Property Survey Available: 1
View
Garden: 1
Pool: 1
Heating
Central: 1
Electric: 1
Sprinkler Description
Auto Sprinkler: 1
City Sprinkler System: 1
Unit Description
Studio: 1
Window Features
Blinds: 1
Appliances
Dishwasher: 1
Disposal: 1
Dryer: 1
Electric Range: 1
Microwave: 1
Oven: 1
Refrigerator: 1
Washer: 1
Water Purifier: 1
Other: 1
Construction Materials
Block: 1
Other: 1
Interior Features
Built-in Features: 1
Closet Cabinetry: 1
Entrance Foyer: 1
High Ceilings: 1
Walk-In Closet(s): 1
Other: 1
Levels
Two: 1
Listing Terms
Cash: 1
Conventional: 1
Other Equipment
Other: 1
Pool Features
Heated: 1
In Ground: 1
Roof
Flat: 1
Tile: 1
Water Source
Public: 1
Architectural Style
Contemporary: 1
Cooling
Central Air: 1
Electric: 1
Showing Requirements
24 Hour Notice: 1
Master Bedroom/Bath
Dual Sinks: 1
Master Bdrm - Ground: 1
Master Bdrm - Sitting: 1
Master Bdrm - Upstairs: 1
Separate Shower: 1
Pets Allowed YN
Yes: 1
Pool Size Details
Pool Size (WxL): 0
Restrictions
No Restrictions: 1
Storm Protection
Impact Glass: Complete
Tax Information
City/County: 1
Tax Reflects No Exemptions: 1
Outdoor Living Spaces
Balcony: 1
Deck: 1
Balcony Details
Balcony - Open: 1
Room Types
Den: 1
Family Room: 1
Laundry: 1
Maid/In-Law Quarters: 1
Other: 1
Price Calculations
Current Price To SqFt: 2292.09
Section Details
Parcel Number MLX: 1490
Status Change Information
Major Change Timestamp: 2026-10-19T04:00:00Z
Major Change Type: New Listing
Status Change Date: 2026-10-19
Originating Details
Originating System Key: 566501064
Originating System ID: M00000151
Property Features
Dining Area: Dining/Living Room; Formal Dining; Kitchen Dining
Exterior Features: Built-in Barbecue; Lighting
Flooring: Marble; Wood
Parking Features: Driveway; Paver Block; Attached Carport; Carport
Property Condition: Resale
Appliances: Dishwasher; Disposal; Dryer; Electric Range; Microwave; Oven; Refrigerator; Washer; Water Purifier; Other
Architectural Style: Contemporary
Construction Materials: Block; Other
Cooling: Central Air; Electric
Heating: Central; Electric
Interior Features: Built-in Features; Closet Cabinetry; Entrance Foyer; High Ceilings; Walk-In Closet(s); Other
Levels: Two
Listing Terms: Cash; Conventional
Other Equipment: Other
Pets Allowed YN: Yes
Pool Features: Heated; In Ground
Possession: Negotiable
Restrictions: No Restrictions
Roof: Flat; Tile
Sewer: Public Sewer
Special Information: Property Survey Available
Sprinkler Description: Auto Sprinkler; City Sprinkler System
Tax Information: City/County; Tax Reflects No Exemptions
Unit Description: Studio
View: Garden; Pool
Water Source: Public
Window Features: Blinds
Showing Requirements: 24 Hour Notice
Outdoor Living Spaces: Balcony; Deck
Balcony Details: Balcony - Open
Room Types: Den; Family Room; Laundry; Maid/In-Law Quarters; Other
Room Information
Room Name
Den
Family Room
Maid/In-Law Quarters
Other
Laundry

IDX
Listing Office: Coldwell Banker Realty
Source MLS Verified

Last Updated: October - 19 - 2026

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