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$26,000,000

5 Harbor Pt

Key Biscayne, FL 33149Miami-Dade CountyMATHESON ESTATES
Single Family ResidenceFor SaleActive

Property Highlights

3 / 6.2

Beds / Baths

10,926

Square Feet

0.66

Acres

1954

Year Built

About This Property

A once-in-a-generation opportunity on Key Biscayne’s only private waterfront road, this extraordinary estate spans 28,800 square feet with 120 feet of pristine water frontage, a secluded sandy beach, and a private dock framing panoramic views of the Miami skyline. Offering 10,926 square feet of living space, the property delivers exceptional privacy alongside a striking contemporary design recognized as part of the esteemed Rosa de la Cruz Collection. Soaring 20-foot ceilings, sculptural architectural lines, and expansive, light-filled interiors create a dramatic backdrop for art, entertaining, or a visionary reimagining tailored to your lifestyle. A truly rare canvas in an irreplaceable location, with architectural plans available to transform it into the most exceptional residence in Key Biscayne.

Property Details

Year Built1954
Living Area10,926 sqft
Lot Size0.66 acres

Listing Information

MLS IDA11921513
MLS NameMiamiAssociationOfRealtors
Sale TypeFor Sale
Days on Market96 days
Last UpdatedJan 21, 2026
Price ChangedNov 26, 2025

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Quick Stats

Property Type:Single Family Residence
Status:Active
Listed:N/A
5 Harbor Pt - $26,000,000 | 3 Bed, 6 Bath Single Family Residence | Gabriella Gonda