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5 Harbor Point, Key Biscayne, FL 33149
Sold
111 Days on Market
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$23,500,000

Sold · July 6, 2026

5 Harbor Point

Key Biscayne, FL 33149

MATHESON ESTATES

Explore the area: Key Biscayne homes for sale · Miami Dade County real estate

What this home sold for

Sold price
$23,500,000
Vs. list price
9.6% under
Days on market
111
Price per sq ft
$2,151

This 3-bedroom single-family home in ZIP 33149 sold for $23,500,000 on July 6, 2026. That was 9.6% below its final list price of $26,000,000. It spent 111 days on the market.

3
Bedrooms
6
Bathrooms
10,926
Living Sq Ft
1954
Year Built

Listing Snapshot

Sold Price
$23,500,000
Sold On
July 6, 2026
Days on Site
111 Days
Bedrooms
3
Total Baths
6
Full Baths
4
Partial Baths
2
Living Area
10,926 sqft
Total Sq Ft
10,926 sqft
Lot Size
0.66 Acres
Year Built
1954
Property Type
Single Family
MLS #
A11921513
Property Tax
$59,191 (2024)
Subdivision
MATHESON ESTATES
Development
MATHESON ESTATES
County
Miami Dade
Status
Sold
Special Conditions
Listed As Is

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.

MLS media link

General Features

Property Type
Single Family
Status
Sold
Year Built
1954
Property Condition
Resale
Number of Stories
2
Levels
Two
Garage Spaces
0
Parking
Circular Driveway / Driveway / Paver Block
Direction Faces
Southwest
Lot Size (Acres)
0.66
Living Sq Ft
10,926
Total Sq Ft
10,926
Sewer
Public Sewer
Water Source
Public
Zoning
2000

Interior Features

Appliances
Dryer / Dishwasher / Electric Range / Electric Water Heater / Disposal / Refrigerator / Washer
Cooling
Central Air / Electric
Heating
Central / Electric
Flooring
Ceramic Tile / Marble
Interior Features
Built In Features / Bedroom On Main Level / Breakfast Area / Bathtub / Dining Area / Separate Formal Dining Room / Entrance Foyer / Eat In Kitchen / High Ceilings / Main Level Primary / Soaking Tub / Separate Shower / Tub Shower / Vaulted Ceilings
Windows
Bay Windows

Exterior Features

Construction
Block
Roof
Barrel / Flat
Exterior Features
Balcony / Outdoor Living Area / Room For Pool
Patio & Porch
Open / Balcony
Lot Features
Sprinklers Automatic
Waterfront
Yes
Waterfront Features
Beach Access / Bayfront / Deeded Access / No Fixed Bridges / Ocean Front
Frontage Length
0.00 ft
View
Bay / Beach / Garden

Community & HOA

Association Amenities
None
Security
Smoke Detectors
Pets Allowed
Pet Restrictions / Yes
Financing Terms
Cash / Conventional
Restrictions
No Truck / No Trailer Parking
MLS Area
2520

Schools

Elementary School
Key Biscayne K-8
Middle School
Ponce De Leon
High School
Coral Gables

Browse Key Biscayne homes for sale across every neighborhood and price point in Miami-Dade. Available homes span single-family, townhome, and condo segments throughout the city. Key Biscayne includes gated golf communities, 55+ active adult neighborhoods, waterfront estates, and newer master-planned subdivisions. HOA fees vary by community type, from modest maintenance fees in non-gated subdivisions to higher dues in full-amenity country clubs. The city sits within Miami-Dade, offering access to South Florida beaches, major employment centers, and healthcare hubs. For current Miami-Dade market data, see Florida Realtors' monthly statistics. Browse the latest Key Biscayne listings below. Then connect with a Pure Equity agent to schedule a private showing.

Homes for Sale
141
Under Contract
28
Median List Price
$2,650,000
Median Sale Price (September)
$1,630,000
Median $/Sq Ft
$1,161
Avg Days on Market
130
View all 141 homes for sale in Key Biscayne →
How do I schedule a tour of 5 Harbor Point, Key Biscayne, FL 33149?
Use the Tour button on this listing to request a showing of 5 Harbor Point, Key Biscayne, FL 33149. Pick a day and time and choose an in-person or video-chat tour, and a Pure Equity agent will confirm your visit, often the same day.
Is 5 Harbor Point, Key Biscayne, FL 33149 still available?
5 Harbor Point, Key Biscayne, FL 33149 is currently listed as Sold, and has been on the market 111 days. Status updates directly from the MLS as homes go under contract, so ask us to confirm availability before you plan a visit.
How much is the monthly payment for 5 Harbor Point, Key Biscayne, FL 33149?
With 20% down ($5,200,000) on the $26,000,000 list price and a 30-year fixed loan at an illustrative 6.875% rate, the estimated principal & interest for 5 Harbor Point, Key Biscayne, FL 33149 is about $136,641/mo, before property taxes, insurance. Use the payment estimate on this page to adjust the down payment and rate.
How do I get pre-approved to buy 5 Harbor Point, Key Biscayne, FL 33149?
Getting pre-approved shows sellers you're a serious buyer and clarifies your true budget before you offer on 5 Harbor Point, Key Biscayne, FL 33149. Contact Pure Equity and we'll connect you with a trusted local lender to review your financing options, no obligation.
What schools serve 5 Harbor Point, Key Biscayne, FL 33149?
5 Harbor Point, Key Biscayne, FL 33149 is zoned for Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments and boundaries can change year to year, so confirm current zoning with the local school district before you buy.
Can I negotiate the price of 5 Harbor Point, Key Biscayne, FL 33149?
Often, yes. The right offer on 5 Harbor Point, Key Biscayne, FL 33149 depends on how it's priced against comparable single family sales in Key Biscayne, how long it's been listed, and how motivated the seller is. Pure Equity will run the comps and help you craft a competitive, well-supported offer.

Listing courtesy of BHHS EWM Realty

Listing information is provided by BeachesMLS, Inc.and is deemed reliable but not guaranteed accurate by the MLS or Pure Equity. Information is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. © 2026 BeachesMLS, Inc. Last updated July 1, 2026.

$23,500,000

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Listed by Giulietta Ulloa, BHHS EWM Realty

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