MATHESON ESTATES
5 Harbor Pt, Key Biscayne FL 33149
3 beds · 4.5 baths · 10,926 ft²
$26,000,000
Est. Payment $138,383/mo
3
Bedrooms
4.5
Bathrooms
10,926
Sq. Ft.
1954
Year Built
93
Days on Market
Description
Nestled on exclusive Harbor Point, only private road in Key Biscayne, this exceptional residence sits on an oversized 28,800 sq. ft.lot, offering unparalleled privacy & breathtaking views of the Miami skyline. 1 of just 12 waterfront estates in this prestigious enclave, the property boasts private road, a secluded beach, and a dedicated dock, creating a sanctuary of exclusivity & tranquility.This contemporary masterpiece globally recognized as part of the Rosa de la Cruz Collection will appeal to both art collectors & families, soaring 20-foot ceilings, elegantly curved walls, expansive entertainment areas ,offering endless possibilities for customization to suit a more conventional or uniquely personalized floor plan. definitely a rare gem in one of Miami’s most coveted locations.
Facts
- MLS#
- A11774618
- Subdivision
- MATHESON ESTATES
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 1954
- Lot Size
- 28,800 ft²
- Sq. Ft.
- 10,926 ft²
- Sq. Mt.
- 1,015 m²
- Price per sq. ft.
- $2,380/ft²
- Price per sq. mt.
- $25,616/m²
- Stories
- —
- Garage
- —
- Pool
- —
- Days on Market
- 93 days
- Listed
- Apr 1, 2025
- Last Updated
- Oct 10, 2025
- Price/Lot Sq.Ft.
- $903/ft²
Comparable homes
Same ZIP, similar price + bedrooms.
Market insights for Key Biscayne
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
May 2026
77
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).
| 10/10/2025 | Sold | $26,000,000 |
| 4/1/2025 | Listed for sale | $26,000,000 |
History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).
Location
GreatSchools Summary Ratings
Public + private K-12 schools within 5 miles of this listing.
New World School Of The Arts9,10,11,12 · public · 0.3 mi
- Miami Tech at Mater Innovation Academy
9,10,11,12 · charter · 0.3 mi
- School For Advanced Studies-Wolfson
11,12 · public · 0.3 mi
- Law Enforcement Officers Memorial High School
9,10,11,12 · public · 0.6 mi
- Downtown Miami Charter School
KG,1,2,3,4,5 · charter · 0.6 mi
- Miami-Dade Online Academy- Virtual Instruction Program
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.7 mi
- District Instructional Center (Dic)
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.8 mi
- District Summer Center C
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.8 mi
- District Summer Center D
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.8 mi
- District Summer Center E
KG,1,2,3,4,5,6,7,8,9,10,11,12 · public · 0.8 mi
Data provided by GreatSchools.org © 2026. All rights reserved.Estimated Monthly Payment
$160,200/mo
Principal & Interest
$138,383
Property Tax
$21,667
Insurance
$150
HOA
$0
Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.
The data relating to real estate for sale on this website comes in part from the Southeast Florida Multiple Listing Service. MLS Data is deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.
Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited and may be a violation of federal and state law.
Copyright Southeast Florida MLS a/k/a SEFMLS © 2026.
Updated within 24 hours
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