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5 Harbor Point, Key Biscayne, FL 33149

$26,000,000
Property Type: Residential Bedrooms: 3 Baths: 6 Square Footage: 10,926 Status: Pending
Current Price: $26,000,000 List Date: 11/26/2025 Last Modified: 6/08/2026

Description

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.

More Information MLS# A11921513

Contract Information

Comp Sale YN: No Occupant Type: Call Listing Agent Listing Date: 2025-11-26 Status: Pending Original List Price: 26000000 List Price: $26,000,000 Current Price: $26,000,000

Location and Legal

County Or Parish: Miami-Dade County Parish Name: Miami-Dade City Name: Key Biscayne Municipal Code: 24 Postal Zip: 33149 Development Name: MATHESON ESTATES Subdivision Number: 2 Flood Zone: AE Country: United States Street Number: 5 Street Name: Harbor Street Suffix: Point State Or Province: FL Postal Code: 33149 Postal Code +4: 1715 Subdivision Name: MATHESON ESTATES Area: 2520 Elementary School: Key Biscayne K-8 Middle Or Junior School: Ponce De Leon High School: Coral Gables Parcel Number: 2442320020250 Zoning: 2000

General Property Information

Adjusted Area Main: 10926 Living Area Main: 10926 Lot Size Dimensions: 28800 Lot Size Area: 28800 Water Frontage Feet: 0 Senior Community YN: No Outdoor Living Spaces YN: Yes Stories Total: 2 Pool Private YN: No Property Sub Type: Single Family Residence Bedrooms Total: 3 Bathrooms Total: 6 Bathrooms Full: 4 Bathrooms Half: 2 Building Area Main: 10926 Year Built: 1954 Carport YN: 1 Carport Spaces: 1 Covered Spaces: 1 Lot Size Acres: 0.66 Waterfront YN: 1 Direction Faces: Southwest

Financial Information

Membership Fee Required YN: No Tax Annual Amount: 59191 Tax Year: 2024 Tax Legal Description: 32-33 54 42 4-5-6 55 42 .53 AC M/L MATHESON ESTS PB 46-86 PART OF TR 12 DESC BEG AT X OF N/L TR 11 & W/L OF SEC 5-55-42 TH W ALG N/L TR 11 2

Office/Member Information

DXORIGMLSID: SEF

Amenities

None: 1

Dining Area

Breakfast Area: 1 Eat-In Kitchen: 1 Formal Dining: 1

Entry Information

Entry Level: 1

Flooring

Ceramic Tile: 1 Marble: 1

Leasing Permitted Details

Leasing Permitted YN: Yes Okay To Lease: 1

Parking Features

Circular Driveway: 1 Driveway: 1 Paver Block: 1

Property Condition

Resale: 1

Possession

Negotiable: 1

Sewer

Public Sewer: 1

Special Information

Sold As-Is: 1

View

Garden: 1

Heating

Central: 1 Electric: 1

Sprinkler Description

Auto Sprinkler: 1

Water Access

Deeded Beach Access: 1 No Fixed Bridge: 1

Water View

Bay: 1 Beach: 1

Window Features

Bay Window(s): 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Electric Range: 1 Refrigerator: 1 Washer: 1

Construction Materials

CBS: 1

Interior Features

Built-in Features: 1 Entrance Foyer: 1 High Ceilings: 1 Vaulted Ceiling(s): 1

Levels

Two: 1

Listing Terms

Cash: 1 Conventional: 1

Lot Features

Room for Pool: 1

Roof

Barrel: 1 Flat: 1

Security Features

Smoke Detector(s): 1

Water Source

Public: 1

Waterfront Features

Bayfront: 1 Ocean Front: 1 No Fixed Bridges: 1

Water Heater Details

Electric Water Heater: 1

Boat and Dock Information

Dock: Yes

Boat and Dock Features

Private Dock: 1

Cooling

Central Air: 1 Electric: 1

Showing Requirements

Call Listing Agent: 1

Master Bedroom/Bath

Bedroom On Entry Level: 1 Combo Tub/Shower: 1 Master Bdrm - Ground: 1 Separate Shower: 1 Separate Tub: 1

Pets Allowed YN

Yes: 1

Pets Allowed

Pet Restrictions Possible: 1

Restrictions

Parking - No Trailer: 1 Parking - No Truck: 1

Storm Protection

Impact Glass: Partial Panel Shutters: Partial Roll-Down Shutters: Partial

Tax Information

Tax Reflects No Exemptions: 1

Outdoor Living Spaces

Balcony: 1

Balcony Details

Balcony - Open: 1

Contingencies

None: 1

Room Types

Den: 1 Maid/In-Law Quarters: 1

Price Calculations

Current Price To SqFt: 2379.64

Section Details

Parcel Number MLX: 0250

Acreage Description

1/2 To Less Than 1 Acre Lot: 1

Status Change Information

Major Change Timestamp: 2026-05-08T14:14:04Z Major Change Type: Status Change Status Change Date: 2026-05-08 Under Contract Date: 2026-03-17

Originating Details

Originating System Key: 423678547 Originating System ID: M00000151

Property Features

Dining Area: Breakfast Area; Eat-In Kitchen; Formal Dining Flooring: Ceramic Tile; Marble Leasing Permitted Details: Okay To Lease Parking Features: Circular Driveway; Driveway; Paver Block Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Electric Range; Refrigerator; Washer Water Heater Details: Electric Water Heater Boat and Dock Features: Private Dock Construction Materials: CBS Cooling: Central Air; Electric Heating: Central; Electric Interior Features: Built-in Features; Entrance Foyer; High Ceilings; Vaulted Ceiling(s) Levels: Two Listing Terms: Cash; Conventional Lot Features: Room for Pool Pets Allowed YN: Yes Pets Allowed: Pet Restrictions Possible Possession: Negotiable Restrictions: Parking - No Trailer; Parking - No Truck Roof: Barrel; Flat Security Features: Smoke Detector(s) Sewer: Public Sewer Special Information: Sold As-Is Sprinkler Description: Auto Sprinkler Tax Information: Tax Reflects No Exemptions View: Garden Water Access: Deeded Beach Access; No Fixed Bridge Water Source: Public Water View: Bay; Beach Waterfront Features: Bayfront; Ocean Front; No Fixed Bridges Window Features: Bay Window(s) Showing Requirements: Call Listing Agent Outdoor Living Spaces: Balcony Balcony Details: Balcony - Open Contingencies: None Room Types: Den; Maid/In-Law Quarters Acreage Description: 1/2 To Less Than 1 Acre Lot

Room Information

Den Maid/In-Law Quarters
Listing Office: BHHS EWM Realty
Last Updated: June - 08 - 2026
5 Harbor Point, Key Biscayne, FL 33149- MLS# A11921513
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