Accepting backups

$19,450,000

550 Harbor Dr, Key Biscayne, FL 33149

7beds

6,497sqft

$142,142/mo

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Single Family Residence

Built in 2003

0.53 Acres Lot

$-- Zestimate^®

$2,994/sqft

$-- HOA

What's special

Waterfront estateLarge outdoor covered porchesDouble lotLive-in quartersProfessionally landscaped yard

Situated on the exclusive island of Key Biscayne, this extraordinary 7,000sqft waterfront estate sits on a rare double lot located on Hurricane Harbor overlooking tranquil Manatee Lagoon. The property offers an unparalleled sanctuary of luxury and seclusion with features including a 4 car garage ideal for collectors, professionally landscaped yard well suited for outdoor entertaining, 7 bedrooms and 7.5 baths including live-in staff quarters. Expansive living areas flow seamlessly to large outdoor, covered porches becoming your al fresco living room for outdoor dining or relaxing and soaking in the beauty of the natural environment. As the sun hits the horizon, Sunsets light up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr notice

327 days
137
1

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 7
Bathrooms: 8
Full bathrooms: 7
1/2 bathrooms: 1

Heating

Central, Electric

Cooling

Central Air, Electric

Appliances

Included: Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Electric Range, Refrigerator, Washer

Features

Built-in Features, Elevator, Maid/In-Law Quarters, Other
Flooring: Carpet, Marble

Interior area

Total structure area: 7,356
Total interior livable area: 6,497 sqft

Video & virtual tour

View virtual tour

Property

Parking

Total spaces: 4
Parking features: Additional Spaces Available, Driveway, Paver Block, Garage Door Opener
Attached garage spaces: 4
Has uncovered spaces: Yes

Features

Stories: 2
Patio & porch: Open Porch, Patio
Exterior features: Balcony
Has private pool: Yes
Pool features: Equipment Stays
Has view: Yes
View description: Lagoon
Has water view: Yes
Water view: Lagoon
Waterfront features: Ocean Access, Lagoon, Navigable Water, No Fixed Bridges, WF/Pool/Ocean Access
Frontage length: 127

Lot

Size: 0.53 Acres
Features: 1/2 To Less Than 3/4 Acre Lot

Details

Parcel number: 2452050070020
Zoning: 2000

Construction

Type & style

Home type: SingleFamily
Property subtype: Single Family Residence

Materials

Foundation: Raised
Roof: Barrel Roof

Condition

Year built: 2003

Utilities & green energy

Sewer: Public Sewer
Water: Municipal Water

Community & HOA

Community

Features: Beach Club Member Available, Boating, Tennis Court(s), Pickleball
Security: Smoke Detector
Subdivision: Hurricane Cove

HOA

Has HOA: No

Location

Region: Key Biscayne

Financial & listing details

Price per square foot: $2,994/sqft
Tax assessed value: $8,433,019
Annual tax amount: $105,472
Date on market: 11/11/2025
Listing terms: All Cash,Conventional

Estimated market value

Not available

Estimated sales range

Not available

Price history

Date	Event	Price
6/24/2026	Price change	$19,450,000-4.9%$2,994/sqft
Source: MIAMI #A11912105 Report a problem
5/16/2026	Listed for sale	$20,450,000-6.8%$3,148/sqft
Source: MIAMI #A11912105 Report a problem
11/11/2025	Listed for sale	$21,950,000+111.1%$3,378/sqft
Source: MIAMI #A11912105 Report a problem
11/30/2007	Listing removed	$10,400,000$1,601/sqft
Source: Obeo #M1169481 Report a problem
11/14/2007	Listed for sale	$10,400,000+357.1%$1,601/sqft
Source: Obeo #M1169481 Report a problem
4/7/2000	Sold	$2,275,000+128.6%$350/sqft
Source: Public Record Report a problem
3/20/1998	Sold	$995,000$153/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$117,717 +11.6%	$6,712,201 +10%
2024	$105,472 +6.7%	$6,102,001 +10%
2023	$98,891 +21%	$5,547,274 +10%
2022	$81,707 +6.8%	$5,042,977 +10%
2021	$76,527 -8.4%	$4,584,525 -9.4%
2020	$83,550 +7.7%	$5,058,879 +8%
2019	$77,562 +3%	$4,684,564 -0.4%
2018	$75,320	$4,701,328 -23.4%
2017	$75,320 -24.1%	$6,141,407 +2.3%
2016	$99,231 +5.2%	$6,006,008 +10%
2015	$94,350 +2.9%	$5,460,008 +10%
2014	$91,660 +26.7%	$4,963,644 +10%
2013	$72,361	$4,512,404 +9.9%
2012	$72,361 +11.1%	$4,107,389 +10%
2011	$65,141 -2%	$3,733,990 +5.4%
2010	$66,458 -14.9%	$3,541,768 -19%
2009	$78,115 -5%	$4,374,060 -7.1%
2007	$82,260 +10.4%	$4,706,610
2006	$74,520	--
2005	$74,520 +26%	--
2004	$59,155 +194.6%	--
2003	$20,082 +24.3%	--
2001	$16,161	--