Date
Details
Price
Change
Source
10/19/2026
Listed
$9,950,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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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.
Full Property Details
Full Property Details for 360 Harbor Ln
General
- Price: $9,950,000
- Taxes: $31,314 (2025)
- Status: Active
- Type: Single Family
- Source: Greater_Miami
- MLS ID: A12104430
- Updated: 10/20/2026
- Added to Site: 3 day(s) ago
Interior
- Interior Features: First Floor Entry, Built-in Features, Closet Cabinetry, Entrance Foyer, Other, Volume Ceilings, Walk-In Closet(s), Den/Library/Office, Family Room, Maid/In-Law Quarters, Utility Room/Laundry
- Appliances: Dishwasher, Disposal, Dryer, Electric Range, Microwave, Other Equipment/Appliances, Water Purifier, Refrigerator, Wall Oven, Washer
- Furnishings: Unfurnished
- Flooring: Marble, Wood
Rooms
Bathrooms
- Total Bathrooms: 6
- Full Bathrooms: 5
- Half Bathrooms: 1
- Primary Bathroom: Dual Sinks, Shower Only
Bedrooms
- Total Bedrooms: 6
- Bedroom Features: At Least 1 Bedroom Ground Level, Primary Bedroom Upstairs, Sitting Area - Primary Bedroom, Studio
Other Rooms
- Living Room: Den/Library/Office, Family Sq. Ft.
- Dining Room: Dining/Living Room, Formal Dining, Kitchen Dining
- Laundry: Utility Room/Laundry
Additional Information
- Pool: Yes
- Pool Description: In Ground, Heated
Exterior
- Exterior Features: Built-In Grill, Lighting, Open Balcony
- Deck/Patio: Deck, Open Balcony
Parking
- Carports: Yes
- Carport Spaces: 2
- Covered Spaces: 2
- Parking Features: Attached Carport, Driveway, Paver Block
Location
- Area: Biscayne Key Estates
- County: Miami-Dade County
- Subdivision: BISCAYNE KEY ESTATES
- Building Name: BISCAYNE KEY ESTATES
- Direction Faces: Northeast
School Information
- Elementary School: Keybiscayne
- Middle School: Ponce De Leon
- High School: Coral Gables
Community
- Community Name: Biscayne Key Estates
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Central Air, Electric
- Heating Type: Central, Electric
Utilities
- Sewer: Public Sewer
- Water: Municipal Water
Structural Information
- Architectural Style: Detached, Two Story, Modern/Contemporary
- Structure Type: Pool Only, House
- Detached/Attached: Detached
- Construction: Concrete Block Construction, Other
- Roof: Flat Tile
- Windows: Clear Impact Glass, Complete Impact Glass, Blinds, High Impact Windows, Impact Glass
- Doors: High Impact Doors
- Entry Location: Foyer
- Building Size: 5156
- Square Feet: 4,341
- Living Area: 4,341 Sq. Ft.
- Year Built: 2025
Lot Features
- Property View: Garden, Pool
- Lot Size (Sq. Ft.): 9,300
- Lot Features: Less Than 1/4 Acre Lot
- Zoning: 100
Financial Considerations
- Price Per Sq. Ft.: $2,292.1
- Tax Amount: $31,314
- Tax Year: 2025
- Terms: All Cash, Conventional
Disclosures and Reports
- 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
- Restrictions: No Restrictions
- Property ID: 24-52-05-001-1490
Buyer's Brokerage Compensation: Contact Listing Agent
Not binding unless confirmed by separate agreement among applicable parties.
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— 360 Harbor Ln —
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 360 Harbor Ln
School District:Dade County School District
| Name | Grades | Distance |
|---|---|---|
Key Biscayne K-8 Center 150 West McIntyre Street, Key Biscayne, FL 33149 | PK-5 | 0.3 mi |
Ponce De Leon Middle School 5801 Augusto Street, Coral Gables, FL 33146 | 6-8 | 6.5 mi |
Coral Gables Senior High School 450 Bird Road, Coral Gables, FL 33146 | 9-12 | 6.5 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 360 Harbor Ln
Tax History
Tax History for 360 Harbor Ln
Year
Property Taxes
Change
Tax Assessment
Change
2025
$32,619
13%
$2,024,000
10%
2024
$28,762
17%
$1,840,000
—
2023
$24,649
18%
$1,840,000
30%
2022
$20,969
13%
$1,412,000
27%
2021
$18,560
—
$1,108,000
25%
2021
$18,560
7%
$887,400
-15%
2019
$17,354
-15%
$1,047,065
-17%
2018
$20,323
275%
$1,267,487
217%
2017
$5,425
-1%
$400,219
2%
2016
$5,454
-1%
$391,988
1%
2015
$5,530
-2%
$389,264
1%
2014
$5,626
2%
$386,175
1%
2013
$5,509
—
$380,468
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 360 Harbor Ln
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- Updated 4 hours ago
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Listed by Monica S. Betancourt (305) 632-7248
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- Single Family
- Closed
- 7Beds
- 6Total Baths
- 5,008Sq. Ft.
Sold by Bruno Junqueira
360 Harbor Ln, Key Biscayne, FL 33149 (MLS# A12104430) is a Single Family property with 6 bedrooms, 5 full bathrooms and 1 partial bathroom. 360 Harbor Ln is currently listed for $9,950,000 and was received on October 19, 2026. This property is listed by The Jills Zeder Group from our Miami Beach Office.Want to learn more about 360 Harbor Ln? Do you have questions about finding other Single Family real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.