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$9,950,000
Monthly Est:$49,525
6 Beds
- 6 Baths
5 full baths + 1 half bath
4,341sqft
360 Harbor Ln, Key Biscayne, FL 33149
$9,950,000
$49,525/moEst:
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Single Family Residence
Built in 2025
$-- HOA
9,147.6 sqft lot
$2,292/sq.ft
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.
- Houzeo last checked: 1 minute ago
- Listing updated: October 31, 2026 at 2:25 am
- Listing Provided by: Judith H Zeder (305) 613-5550 DRE #0650944, Daniel Hertzberg (786) 789-3507 DRE #3212309 | Coldwell Banker Realty (305) 667-4815
- Source: Beaches MLS-FL | MLS#: A12104430

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
2
County
City
Neighborhood
--
Year Built
2025
HOA Fees
-
Finished Area
4,341 sqft
Lot Size
9,147.6 sqft lot
Basement Area
- sqft
MLS Name
Beaches MLS
MLS Number
A12104430
MLS Status
Active
Days on Market
12
Cumulative Days on Market
11

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 6
Bathrooms: 6
Interior
Sewer
Public Sewer
Window Features
Blinds
Interior Features
Built In Features, Closet Cabinetry, Dining Area, Separate Formal Dining Room, Dual Sinks, Entrance Foyer, High Ceilings, Kitchen Dining Combo, Living Dining Room, Main Level Primary, Other, Sitting Area In Primary, Separate Shower, Upper Level Primary, Walk In Closets
Flooring
Marble, Wood
Heating
Central, Electric
Appliances
Dryer, Dishwasher, Electric Range, Disposal, Microwave, Oven, Refrigerator, Water Purifier, Washer
Exterior Features
Built In Barbecue, Balcony, Barbecue, Lighting, Outdoor Living Area
Cooling
Central Air, Electric
Construction
Year Built
Year Built: 2025
Home type
Single Family Residence
Construction Materials
Block, Other
Property Condition
Resale
Architectural Style
Contemporary
Roof
Flat, Tile
Utilities & Energy
Pool Features
Heated, In Ground
Parking Features
Attached Carport, Carport, Driveway, Paver Block
Water Source
Public
Association Amenities
None
Other Features
Lot Features
Sprinklers Automatic, Sprinkler System
Patio And Porch Features
Deck, Open, Balcony
Subdivision Name
Biscayne Key Estates
Price History
| Date | Event | Price |
|---|---|---|
10/19/2026 Source: #A12104430 | Off Market | $9,950,000 $2,292/sqft |
10/10/2026 Source: #A12104430 | Listed for Sale | $9,950,000 +565.55% $2,292/sqft |
02/28/2018 Source: #A10389688 | Off Market | $1,495,000 $344/sqft |
02/28/2018 Source: #A10389688 | Sold | $1,495,000 +21.05% $344/sqft |
02/01/2018 Source: | Price Decreased | $1,235,000 -17.39% $284/sqft |
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Getting Around 360 Harbor Ln
Bike Score®
Somewhat Bikeable
48/100
Walk Score®
Car-Dependent
27/100
Data provided by Redfin
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