MASHTA ISLAND
660 S Mashta Dr, Key Biscayne FL 33149
7 beds · 8.5 baths · 5,043 ft²
7
Bedrooms
8.5
Bathrooms
5,043
Sq. Ft.
1965
Year Built
396
Days on Market
Description
Don't miss this opportunity to own a rarely available wide bay front home on S Mashta Dr featuring 100 ft of water frontage & unobstructed views. This large 2 story home has an eat in kitchen, 3 door wine chiller & separate walk-in pantry/storage area. An adjacent covered patio is separated from the kitchen by multi sliding impact doors that open & stack against each other expanding your entertaining space & bringing the outside in. The primary BR has 2 full baths & 3 walk-in closets. There are an additional 4 BR's & 4 baths on the first floor, one of which has a kitchenette & a separate entrance. A mosaic staircase leads to 2 additional bedrooms w/ensuite baths & a large shared balcony Additional amenities include heated pool, cabana bath & an expansive patio for entertaining.
Facts
- MLS#
- A11526068
- Subdivision
- MASHTA ISLAND
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 1965
- Lot Size
- 15,000 ft²
- Sq. Ft.
- 5,043 ft²
- Sq. Mt.
- 469 m²
- Price per sq. ft.
- $3,371/ft²
- Price per sq. mt.
- $36,245/m²
- Stories
- —
- Garage
- —
- Pool
- —
- Days on Market
- 396 days
- Listed
- Jan 19, 2024
- Last Updated
- Mar 31, 2025
- Price/Lot Sq.Ft.
- $1,133/ft²
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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
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).
| 3/31/2025 | Sold | $16,999,000 |
| 9/16/2024 | Price change | $16,999,000-22.6% |
| 1/19/2024 | Listed for sale | $21,950,000 |
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.
Discovery YearsPK,KG · private · 0.4 mi
Fairlawn Elementary SchoolPK,KG,1,2,3,4,5 · public · 0.4 mi
Henry M. Flagler Elementary SchoolPK,KG,1,2,3,4,5 · public · 0.6 mi
Yin Yang AcademyKG,1,2,3,4,5,6 · private · 0.6 mi
New Generations Pre-SchoolPK,KG · private · 0.6 mi
Us International Christian Academy9,10,11,12 · private · 0.9 mi
My Rainbow Family Child CarePK,KG · private · 0.9 mi
Sylvania Heights Elementary SchoolPK,KG,1,2,3,4,5 · public · 1.1 mi
Tiny Steps Daycare Learning CenterPK,TK,KG,1,2,3 · private · 1.2 mi
Lincoln=marti SchoolPK,TK,KG,1,2,3 · private · 1.2 mi
Estimated Monthly Payment
$104,792/mo
Principal & Interest
$90,476
Property Tax
$14,166
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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