MASHTA ISLAND
730 N Mashta Dr, Key Biscayne FL 33149
6 beds · 6.5 baths · 4,225 ft²
$7,795,000
Est. Payment $41,488/mo
6
Bedrooms
6.5
Bathrooms
4,225
Sq. Ft.
2013
Year Built
2
Garage
124
Days on Market
Description
Your Key Biscayne Private Oasis on exclusive Mashta Island. This 6-bed, 6.5-bath modern masterpiece spans 4,225 SF on a 10,000 SF lot. The open floor plan and soaring 21’ ceilings fill every corner with light. Grand living is enhanced by telescopic sliding doors, creating a seamless flow with the outdoor area. Formal dining room is separated by elegant 288-bottle glass wine vault. Gourmet kitchen with gas stove, Miele and Bosch appliances, wine cellar, porcelain and quartz countertops, and kitchen bar. Enjoy Miami’s breathtaking sunsets from rare find 3rd floor rooftop terrace. Lush garden, with heated pool, jacuzzi, cabana bath and BBQ gazebo. Additional office, Sonos, laundry room, storage and a 2-car carport garage. Key Biscayne is a 10 min drive to Downtown and 25 min to the Airport.
Facts
- MLS#
- A11472796
- Subdivision
- MASHTA ISLAND
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 2013
- Lot Size
- 10,000 ft²
- Sq. Ft.
- 4,225 ft²
- Sq. Mt.
- 393 m²
- Price per sq. ft.
- $1,845/ft²
- Price per sq. mt.
- $19,835/m²
- Stories
- —
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- 124 days
- Listed
- Oct 20, 2023
- Last Updated
- Feb 21, 2024
- Price/Lot Sq.Ft.
- $780/ft²
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Same ZIP, similar price + bedrooms.
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Market insights for Key Biscayne
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
May 2026
45
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).
| 2/21/2024 | Sold | $7,795,000 |
| 10/20/2023 | Listed for sale | $7,795,000 |
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.
Stars Learning Day Care CenterPK,TK,KG,1 · private · 0.3 mi
- Stars Learning Center
KG,1,2 · private · 0.3 mi
- Kid's Choice Learning Center
PK,TK,KG,1 · private · 0.5 mi
- Holy Spirit Church & Inst / Miami Beach Academy
PK,KG,1 · private · 0.5 mi
- Le Petit Papillon Montessori School
PK,TK,KG,1,2,3,4,5 · private · 0.5 mi
- Lehrman Community Day School
KG,1,2,3,4,5 · private · 0.7 mi
- Treasure Island Elementary School
PK,KG,1,2,3,4,5 · public · 0.7 mi
- Gan Katan
PK,KG,1,2,3,4 · private · 0.8 mi
- Biscayne Elementary School
PK,KG,1,2,3,4,5 · public · 0.9 mi
- Happy Kids Private School
KG,1,2 · private · 0.9 mi
Data provided by GreatSchools.org © 2026. All rights reserved.Estimated Monthly Payment
$48,134/mo
Principal & Interest
$41,488
Property Tax
$6,496
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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