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5 Harbor Pt, Key Biscayne, FL 33149

$23,500,000

Last sold 03/17/2026 after 175 Days

3
bed
6
bath
10,926
Sqft ($2,151/Sqft)

House not for sale

About 5 Harbor Pt

Property type House

Neighborhood

Year built 1954

HOA fee $0/month

Lot size 0.66 Acre

Property 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.

Listed by

Listing Agent - Giulietta Ulloa

Listing Office - BHHS EWM Realty

Source: SEFMLS

MLS#A11921513 • last updated 1 week ago

Movoto checked SEFMLS for data 10 minutes ago

Overview
Levels/Style	Two, 2, Two Story
Type	Residential
SubType	Single Family Residence
Status	Closed
Virtual Tour	N/A
MLS #	A11921513
SqFt	10926
Lot Size (SqFt)	28800
Property Tax	59191
Year Built	1954

Interior
# Full Baths	4
# Half Baths	2
Total # of Baths	6
Total # of Bedrooms	3
Window Features	Impact Glass

Exterior
Exterior	Block
# Carport Spaces	1
# Covered Spaces	1
Lot Desc	Sprinklers Automatic

Amenities / Utilities
Sewer/ Septic	Public Sewer
Water Source	Public
Pets Allowed	1
Pool Desc	None
Security Features	Smoke Detector(s)

Location
Subdivision	MATHESON ESTATES
Area/ Subdivision	42
Elementary School	Keybiscayne
High School	Coral Gables
Middle School	Ponce De Leon
APN	24-42-32-002-0250
Zoning	2000

Lot/ Land Details

We are not permitted to show value estimates for this property.

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Jul 2026
MLS # A11921513
Jul 6, 2026 Sold
$23,500,000 (-9.6%)
Mar 17, 2026 Pending
—
Mar 17, 2026 Active
—
Nov 26, 2025 Listed
$26,000,000 (+10.6%)
Oct 2025
MLS # A11774618
Oct 9, 2025 Sold
$23,500,000 (-9.6%)
Jul 3, 2025 Pending
—
Apr 1, 2025 Listed
$26,000,000

Year Property taxes Tax assessment
2024
$59,191 +1.3%

$3,663,218 +3.0%
2023
$58,405 +5.5%

$3,556,523 +3.0%
2022
$55,350 -0.4%

$3,452,935 +3.0%
2021
$55,577 +3.0%

$3,352,365 +1.4%
2020
$53,937 +2.1%

$3,306,080 +2.3%
2019
$52,841 +5.3%

$3,231,750 +1.9%
2018
$50,160 +1.2%

$3,171,492 +2.1%
2017
$49,546 -0.2%

$3,106,261 +2.1%
2016
$49,664 -1.5%

$3,042,372
2015
$50,404

—

5 Harbor Pt
$23.5M
Village of Key Biscayne
$1.77M -23% y/y
33149
$1.77M -21% y/y
Key Biscayne
$1.77M -21% y/y

No chart available

Statistics calculated by Movoto

	Est. value	Bed/bath	Sqft	mi
7 Harbor Pt, Key Biscayne, FL 33149	$19,181,548	7/9	10,776	0.02
3 Harbor Pt, Key Biscayne, FL 33149	$22,509,267	4/8	14,978	0.02
6 Harbor Pt, Key Biscayne, FL 33149	$9,147,000	4/3	6,213	0.04
9 Harbor Pt, Key Biscayne, FL 33149	$7,722,000	5/5	11,028	0.04
4 Harbor Pt, Key Biscayne, FL 33149	$7,593,000	3/3	3,890	0.04
1 Harbor Pt, Key Biscayne, FL 33149	$13,902,000	3/5	9,379	0.05
14 Harbor Pt, Key Biscayne, FL 33149	$8,692,000	4/5	5,854	0.07
18 Harbor Pt, Key Biscayne, FL 33149	$8,495,000	5/6	5,497	0.08

Estimated values are based on public record data and automated valuation models. Values are not guaranteed and may not reflect current market conditions.