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 Realty 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 Realty 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 Realty will run the comps and help you craft a competitive, well-supported offer.

Sold

111 Days on Market

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$26,000,000

5 Harbor Point

Key Biscayne, FL 33149

MATHESON ESTATES

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

Bedrooms

Bathrooms

10,926

Living Sq Ft

1954

Year Built

Estimated monthly payment

$136,641 /mo

Principal and interest only, based on $5,200,000 down (20%), a 6.875% 30-year fixed rate. Property taxes, homeowners insurance are not included.

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Listing Snapshot

Price: $26,000,000
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.

Virtual Tour

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

About the Area

Key Biscayne

View Key Biscayne Real Estate →

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 Realty agent to schedule a private showing.

Homes for Sale: 171
Under Contract: 24
Median List Price: $2,560,000
Median Sale Price (August): $1,550,000
Median $/Sq Ft: $1,155
Avg Days on Market: 114

View all 171 homes for sale in Key Biscayne →

Frequently Asked Questions

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 Realty 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 Realty 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 Realty 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 Realty. 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.

$26,000,000