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Mashta Island waterfront with sweeping bay views
756 Mashta Dr, Key Biscayne, FL 33149MLS# DS-10748
Price: $12,900,000
Est. $88,342/mo- 5Beds
- 6Baths
- 5,400Sq ft
- 15,200Sq ft lot
- 2010Built
- 3Garage spaces
- HouseType
- $2,389Per sq ft
About this property
A waterfront estate on Mashta Island, the private enclave on the bay side of Key Biscayne, with 100 feet of frontage, a private dock and sweeping views of the bay and the Miami skyline. Recently reduced.
The 2010 home has five bedrooms and six baths, with a two-story living room, a formal dining room and a chef’s kitchen that opens to a family room overlooking the pool and the water. An elevator serves both floors.
The primary suite has a bayfront terrace, two walk-in closets and a spa bath. Four more bedroom suites, a gym and a media room complete the plan.
The garden has a heated pool, a spa, a summer kitchen and a dock with a lift for a boat of up to 60 feet. Gated, with a three-car garage and smart-home controls throughout.
Features & amenities
- Bay view
- 24/7 security
- Boat dock
- Central A/C
- Elevator
- Garage
- Gated community
- Impact windows
- Ocean view
- Pet friendly
- Pool
- Smart home
- Spa
- Walk-in closet
- Waterfront
Facts & details
Overview
- Property type
- House
- Listing type
- For Sale
- Status
- Available
- Neighborhood
- Key Biscayne
- City
- Key Biscayne, FL 33149
- MLS #
- DS-10748
- Listed
- July 17, 2026
- Days on market
- 83 days
Interior
- Bedrooms
- 5
- Bathrooms
- 6
- Living area
- 5,400 sq ft
- View
- Bay
- Furnished
- No
Building & lot
- Year built
- 2010
- Stories
- 2
- Lot size
- 15,200 sq ft
- Garage spaces
- 3
- Waterfront
- Yes
- Pets allowed
- Yes
Financial
- List price
- $12,900,000
- Previous price
$13,900,000(−7%)- Price per sq ft
- $2,389/sq ft
- Property tax
- $232,200/yr
- Est. monthly payment
- $88,342/mo
Location

The neighborhood
Key Biscayne
An island village across the causeway, ten minutes from Brickell.
$8.33M median price3 homes listed
Monthly cost
Estimated monthly payment
$88,342/mo
- Principal & interest74%$65,229
- Property tax22%$19,350
- HOA dues0%$0
- Home insurance4%$3,763
- Loan amount
- $10,320,000
- Total interest
- $13,162,591
- Down payment
- 20%
Estimate only — not a loan offer. Taxes, insurance and rates vary; your lender will confirm the final figures.
Interested in this home?
Luxury Waterfront Specialist · Doorstep Realty
Marcus Ellison · (305) 555-0102 · marcus@doorstep.example
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