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420 Island Dr, Key Biscayne FL 33149

House For Sale
$12,980,000

BTC: 206.03174603

ETH: 7,434.13516609

-$1M (2026/04/06)
370 days
Waterfront
6 bds
6 ba
6,405 sqft

Overview

Spectacular and impeccably appointed modern residence situated on a 13,651 SF lot on prestigious Island Drive—one of Key Biscayne’s most elevated streets. Boasting a total of 8,011 SF, this 6-bedroom, 6 full bath + 2 half bath home is open, bright, and flooded with natural light throughout. Enjoy breathtaking water views and private access to the water in a setting that blends refined luxury with ultimate privacy. This residence showcases exquisitely curated, high-end designer finishes, a dramatic wine cellar, two expansive family rooms, and a closed 2-car garage. The outdoor living area is equally impressive, featuring a sleek summer kitchen and lush, professionally designed landscaping—ideal for elegant island living and entertaining. Per approved plans 6,405 SF under AC -8,682 SF Total

Location

Details

Type:
Residential
Parking:
Covered / Golf Cart Parking
Year Built:
2017
Lot:
13651 Square Feet
Heating:
Central
Price/sqft:
$2,027
Cooling:
Central Air
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$19,249,500
$10.3M – $34.7M
Confidence Low
List vs. estimate
$6.3M below estimate
List $12,980,000 · -32.6%
Our model says this listing is priced below recent comparable activity. Expect competition.
Price per sq ft
$2,026
+5.2% vs. city median $1,925
Based on
12 MLS comparables
+ 30 public-records sales within 0.5 mi
Median actual sale: $3.5M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$88,746
2024
Pool
In Ground
View
Canal
Waterfront
Ocean Access, Canal Front
All facts and features
  • Flooring

    • Marble

    Heating

    • Central

    Cooling

    • Central Air

    Appliances

    • Electric Water Heater

    • Ice Maker

    • Microwave

    • Refrigerator

    • Self Cleaning Oven

    • Wall Oven

    • Washer

    Other interior features

    • First Floor Entry

    • Built-in Features

    • Cooking Island

    • Custom Mirrors

    • Laundry Tub

    • Pantry

    • Chandelier To Be Replaced

    • Split Bedroom

    • Vaulted Ceiling(s)

    • Volume Ceilings

    • Walk-In Closet(s)

    • Other

    Bedrooms and bathrooms

    • Bedrooms: 6

    • Bathrooms: 2

    • Full bathrooms: 6

  • Parking

    • Covered

    • Golf Cart Parking

    Property

    • Exterior Features: Other

    Lot

    • Lot: 13651 Square Feet

    Other Property Information

    • Parcel Number: 24-52-05-010-0590

    • Zoning: 2000

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $88,746

  • Source details

    • MLS ID: A11812864

    Other facts

    • Construction Materials: CBS Construction

    • Laundry Features: Laundry Tub

    • Lot Features: 1/4 To Less Than 1/2 Acre Lot

    • Pool Features: In Ground / Fenced

    • Direction Faces: West

    • Architectural Style: Detached / Two Story

    • Waterfront: Yes

    • Living Area: 6405

    • Water Source: Municipal Water

    • Subdivision Name: CAPE FLORIDA SUB SEC 1

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: BHHS EWM Realty