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360 Harbor LnKey Biscayne, FL 33149

For Sale

$9,950,000

Smart Buyer Rebate $99,500

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.

Listed by Judith Zeder

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License #0650944

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Coldwell Banker Realty

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305-613-5550

Listed by Daniel Hertzberg

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License #3212309

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Coldwell Banker Realty

Last updated October 23, 2026

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Source: SEF #A12104430

Listing Facts

  • TypeSingle-family
  • NeighborhoodVillage of Key Biscayne
  • Bedrooms6
  • Bathrooms5.5
  • Days on Prevu12
  • Taxes$31,314/year
  • Size4,341 sqft
  • Price per sqft$2,292

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

10/19/2026
Listed by Coldwell Banker Realty
$9,950,000
  1. 10/19/2026$9,950,000
    Listed by Coldwell Banker Realty

Property Details for 360 Harbor Ln

Association

Amenities

  • Pets Allowed: No, Yes

Exterior

Construction

  • Roof: Flat, Tile
  • Stories: 2
  • Window Features: Blinds
  • Year Built: 2025
  • Year Built Details: Resale
  • Architectural Style: Contemporary Modern, Detached, Two Story
  • Construction Materials: Block, Other
  • Exterior Features: Balcony, Lighting, Outdoor Grill

Features

  • Direction Faces: Northeast
  • Patio And Porch Features: Deck
  • Pool Features: Heated, In Ground, Private
  • Pool Private: Yes
  • View: Garden, Pool

Measurements

  • Building Area Total: 5,156
  • Lot Size Area: 9,300
  • Lot Size Square Feet: 9,300
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 24-52-05-001-1490
  • Tax Annual Amount: $31,314.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dryer, Dishwasher, Electric Range, Disposal, Microwave, Other, Refrigerator, Wine Cooler, Water Purifier, Washer, Oven
  • Flooring: Hardwood, Marble, Wood
  • Interior Features: Built-in Features, Entrance Foyer, High Ceilings, Walk-In Closet(s), Master Downstairs

Measurements

  • Living Area: 4,341

Rooms

  • Bathrooms Full: 5
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 6
  • Bedrooms Total: 6

Other

Location

  • Subdivision Name: BISCAYNE KEY ESTATES

Parking

Parking

  • Carport Spaces: 2
  • Carport: Yes
  • Covered Spaces: 2
  • Parking Features: Attached Carport, Driveway, Paver Block

Schools

Elementary School

  • Elementary School: Keybiscayne

High School

  • High School: Coral Gables

Middle or Junior School

  • Middle Or Junior School: Ponce De Leon

Utilities

Equipment

  • Cooling: Central Air, Electric
  • Has Cooling: Yes
  • Heating: Central, Electric
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 6 bedrooms and 5.5 bathrooms in this single-family home at 360 Harbor Ln.

What schools are nearby to 360 Harbor Ln?

Nearby schools include the Keybiscayne Elementary School, Ponce De Leon Middle School, and Coral Gables High School.

What are the annual taxes for 360 Harbor Ln?

Annual taxes for this single-family home are estimated at $31,314.

How does 360 Harbor Ln compare to other single-family homes in Village of Key Biscayne?

This single-family home is listed 19% below the average price for single-family homes in Village of Key Biscayne and has been on the market for 189 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,341 sqft.

360 Harbor Ln is a 6-bedroom, 5.5-bath single-family home for sale in Key Biscayne FL 33149. On Prevu for 12 days at $9,950,000. This residence features 4,341 square feet of living space, located in Village of Key Biscayne. The median listing price for single-family homes in this area is $2,400,000. Nearby schools include Keybiscayne Elementary School, Ponce De Leon Middle School, and Coral Gables High School. Property amenities include private outdoor space, dishwasher, air conditioning, parking, swimming pool, and washer/dryer. Browse more single-family home listings in Key Biscayne.

Based on information from Miami Association of REALTORS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.