Single Family Residence
360 Harbor Ln
360 Harbor Ln, Key Biscayne FL 33149 Get directions
$9,950,000
6 Beds · 5 Baths · 4,341 SqFt
See estimated monthly costThis listing is courtesy of Coldwell Banker Realty. Judith Zeder
Overview
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.
Facts & features
Interior
- Living area (sq ft)
- 4,341
- Full bathrooms
- 5
- Half bathrooms
- 1
- Furnished
- Unfurnished
- 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
Building & exterior
- Year built
- 2025
- Lot size (sq ft)
- 9,300
- Covered spaces
- 2
- Garden
- Pool
- Built-In Grill
- Lighting
- Open Balcony
- Attached Carport
- Driveway
- Paver Block
HOA (homeowners association)
- Pets allowed
- Yes
- No Restrictions
Taxes
- Annual tax
- $31,314
- Tax year
- 2025
- Parcel number
- 24-52-05-001-1490
Assigned schools
- Elementary
- Keybiscayne
- Middle
- Ponce De Leon
- High
- Coral Gables
Listing
- MLS number
- A12104430
- Property type
- Single Family Residence
- Price per SqFt
- $2,292
- Subdivision
- BISCAYNE KEY ESTATES
- On market since
- Oct 19, 2026
- Days on market
- 0
Estimated monthly cost
$60,385 per month
- Principal & interest (30 yr)
- $50,313
- Property tax
- $2,610
- Insurance (estimated)
- $7,463
An estimate for comparison only — not a loan offer, a quote, or a commitment to lend. Actual taxes, insurance and financing terms will differ.
Location
Nearby schools
- Key Biscayne K-8 Center
- Key Biscayne Presbyterian School
- St Agnes Academy
- St Christophers - By-The-Sea Montessori School
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