MATHESON ESTATES

9 Harbor Point, Key Biscayne FL 33149

8 beds · 8.5 baths · 11,028 ft²

Closed

$18,200,000

Est. Payment $96,868/mo

MLS Sheet Video

Bedrooms

8.5

Bathrooms

11,028

Sq. Ft.

2006

Year Built

Garage

Days on Market

Description

Welcome to one of the most refined waterfront residences in Florida. Nestled in The only private road of Key Biscayne, this magnificent home sits on an oversized lot with direct Biscayne Bay and Miami skyline views. Extremely sophisticated Bali style home designed by CMA Design Studio, top of the line materials, Lutron system with recess lighting that creates a perfect setting for the interior of the residence. Formal dining, butlers pantry, adjacent to the upscale kitchen (gas stove) and breakfast area with direct access to the covered patio with Jasmin climbing vine, large guest suite on garage second floor. Total of 8 bedrooms. Third-floor loggia family room. Double stair access. Expansive covered terrace and gazebo by the pool. Private dock. Boatlift. Private and gated. Generator.

Facts

MLS#: A11023588
Subdivision: MATHESON ESTATES
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 2006
Lot Size: 27,300 ft²
Sq. Ft.: 11,028 ft²
Sq. Mt.: 1,025 m²
Price per sq. ft.: $1,650/ft²
Price per sq. mt.: $17,756/m²
Stories: —
Garage: 2 spaces
Pool: —
Days on Market: 57 days
Listed: Apr 6, 2021
Last Updated: Jul 22, 2021
Price/Lot Sq.Ft.: $667/ft²

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4 Harbor Point, Key Biscayne FL 33149

Market insights for Key Biscayne

Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.

Sellers market

May 2026

100/100

Buyers marketSellers market

Median days to sold

+4.5%

1-year price forecast (est.)

Price & tax history

From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).

7/22/2021	Sold	$18,200,000
4/6/2021	Listed for sale	$18,200,000

History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).

Location

9 Harbor Point, Key Biscayne FL 33149Directions

GreatSchools Summary Ratings

Public + private K-12 schools within 5 miles of this listing.

Indian Ridge School
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.6 mi
Turning Points Academy
6,7,8,9,10,11,12 · public · 0.6 mi
Benoist Farms Elementary School
PK,KG,1,2,3,4,5 · public · 0.6 mi
Renaissance Charter School At Cypress
KG,1,2,3,4,5,6,7,8 · charter · 0.8 mi
Berean Christian School
PK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 0.9 mi
Dwight Global Online School
6,7,8,9,10,11,12 · private · 1.2 mi
Wynnebrook Elementary School
PK,KG,1,2,3,4,5 · public · 1.6 mi
Conklin International Academy
PK,KG,1,2,3,4,5,6,7,8,11 · private · 1.8 mi
Conklin International Academy
1,2,3,4,5,6,7 · private · 1.8 mi
Everglades Elementary School
KG,1,2,3,4,5 · public · 2.2 mi

Estimated Monthly Payment

$112,185/mo

Principal & Interest

$96,868

Property Tax

$15,167

Insurance

$150

HOA

Down Payment20% ($3,640,000)

Interest Rate7.00%

Loan Term30 years

Property Tax Rate1.00% (FL avg ~1.0%)

HOA / Maintenance$0/mo

Insurance$150/mo

Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.

Rangely Adames

Sales Associate | Sunland Group

(954) 833-0020 info@rangelyadames.com

Hablo Español

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