5 Harbor Pt Key Biscayne FL 33149 MLS #A11921513
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

Price:
$26,000,000
MLS #:
A11921513
Status:
Active
Beds:
3
Baths:
5
Address:
5 Harbor Pt
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
MATHESON ESTATES
Neighborhood:
mathesonestates
City:
Key Biscayne
Listed Date:
Nov 26, 2025
State:
FL
Finished Sq Ft:
10,926
Total Sq Ft:
10,926
ZIP:
33149
Year Built:
1954

Schools

Elementary School:
Keybiscayne
Middle School:
Ponce De Leon
High School:
Coral Gables

Interior

Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Electric Range, Refrigerator, Washer
Bathrooms
4 Full Bathrooms, 2 Half Bathrooms
Cooling
Central Air, Electric
Flooring
Ceramic Floor, Marble
Heating
Central, Electric

Exterior

Architectural Style
Attached, Two Story
Community Features
None
Construction Materials
C B S Construction
Exterior Features
Open Balcony, Room For Pool
Parking Features
Circular Driveway, Driveway, Paver Block, No Rv/ Boats, No Trucks/ Trailers
Roof
Barrel Roof, Flat Roof With Facade Front
Security Features
Smoke Detector

Financial

Tax Year
2024
Taxes
$59,191

Map

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