House in Key Biscayne, FL 33149Mashta Island, 510 S Mashta Dr
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Closed
$18,921,250
5
Beds61/2
Baths5,226
SqFtStatus
Sold - Jul 08, 2025
Parking
2
Size
5,226 SqFt (486 m2)
Price
$3,621/SqFt ($38,972/m2)
Type
House
Built
1981
MLS Number
A11782312
View
Bay,Garden
On Site
489 Days
Updated
400 Days ago
Page Views
0
Waterfront. Located on Mashta Island and island within an island in Key Biscayne. The minute you walk into the house the most breathtaking Biscayne Bay views welcomes you. Breathtaking sunsets.Oversized Lot:18,300-sq.ft. 2 story home with excellent floor plan,... Read more
Features
Bedrooms
- Bedrooms: 5
Bathrooms
- Bathrooms: 6
- Half Bathrooms: 1
Exterior and Lot Features
- Exterior Features: Deck
- View: Bay,Garden
Interior, Heating and Cooling
- Interior Features: BuiltInFeatures, BedroomOnMainLevel, BreakfastArea, ClosetCabinetry, DualSinks, EatInKitchen, FirstFloorEntry, HighCeilings, LivingDiningRoom, SplitBedrooms, SeparateShower
- Equipment / Appliances: Dishwasher, Refrigerator
- Heating Description: Central,Electric
- Cooling Description: CentralAir,Electric
Building and Construction
- Floor Description: Hardwood,Marble,Wood
- Year Built: 1981
- Year Built Description: Resale
- Style: TwoStory
Waterfront and Water Access
- Waterfront Frontage: Yes
School Information
- Elementary School: Keybiscayne
- Middle School: Coral Gables Prep Academy
- Senior High School: Mast Academy
Other Property Info
- Garage: 2
- Listing Date: 2025-04-11T16:22:56.000-00:00
- Directions: East
- Pets Allowed: Conditional,Yes
Taxes, Fees & More
- Taxes: 172413
- Security Information: SmokeDetectors
- Parking Description: Attached, CircularDriveway, Driveway, Garage, GarageDoorOpener
Apples-to-Apples Comparables
Price History
Current
$18.9M
High
$19M
Low
$18.9M
Total Change
-0.4%Date
Event
Price
Change
Price Per
07/08/2025
Sold
$18.9M
0%$3,621 ft2
$38,972 m2
04/11/2025
Price Reduced
$18.9M
-0.41%$3,621 ft2
$38,972 m2
04/11/2025
Listed
$19M
$3,636 ft2
$39,134 m2
07/08/2025
$18.9M
Event
Sold
Change
0%Price Per
$3,621 ft2
$38,972 m2
04/11/2025
$18.9M
Event
Price Reduced
Change
-0.41%Price Per
$3,621 ft2
$38,972 m2
04/11/2025
$19M
Event
Listed
Price Per
$3,636 ft2
$39,134 m2
Price per square foot and days on website are not provided values and are calculated by Subdivisions.
Listed by Brigitte De Langeron • DLS International Realty • Buyer Agency Compensation .
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Community Snapshot
4 to 4 BR
Bedrooms
$16.8M to $18.5M
Price Tier
2,255 - 10,820
SqFt Range
1973
Year Build
1
Total Floors
71
Total Units
Key Biscayne Ultra Luxury Ultra Luxury Homes & Condos
- Biscayne Key Estates House10
- Cape Florida House6
- Casa Del Mar Mixed2
- Club Tower Condo3
- Grand Bay Tower Condo5
- Holiday Colony House0
- Island House Co-Op4
- Key Cassa Condo2
- Lake Villa Condo2
- Mashta Island Mixed2
- Matheson Estates House0
- Ocean Tower Condo6
- Oceana Key Biscayne Mixed7
- Resort Villa Condo1
- Sands Of Key Biscayne Condo3
- The Ritz-Carlton Key Biscayne Condo1
- Tropical Isle Homes House13
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