Mashta Island

Mashta Island is a luxury waterfront community of single family homes in Key Biscayne, Florida, with a range of options priced between $23,500,000 and $25,000,000. There are currently a total of 3 homes for sale on Mashta Island. The smallest Mashta Island home presently available is a four bedroom four bathroom residence that is 3,241 square feet (2,255SF Under Air living space), and the largest of the Mashta Island homes currently on the market has five beds and six baths and is a 8,544 square foot (5,940SF Under Air) residence.

Mashta Island amenities include a spa / hot tub, a state-of-the-art fitness center, sauna, billiards room, and laundry facilities. Onsite dining venues consist of a community kitchen.

Pets are allowed in Mashta Island with no restrictions imposed.

There are two commercial airports that serve Mashta Island - Miami International Airport (MIA), which is ten miles away, and Fort Lauderdale Hollywood International Airport (FLL), which is twenty seven miles away. For those who fly private, there are four private airports nearby: Miami Executive (TMB), Miami Opa Locka Executive (OPF), Homestead Arb (HST), and North Perry (HWO), all within twenty two miles of the Mashta Island community.

Mashta Island real estate activity on the Key Biscayne MLS during the past year (as of September 2025) reflects five homes changing hands, with an average asking price of $11,728,800 and an average selling price of $10,652,250. This represents a healthy list-to-sell price ratio of 91% and a strong price of $2,109 per square foot. During this period, Mashta Island homes for sale have taken an average of 144 days to sell.

In addition, there are numerous other communities in Key Biscayne to choose from, or you may browse all available Key Biscayne Real Estate, including some new construction opportunities. Homes for sale in Mashta Island are selling quickly. Set up a new listing alert, and we will notify you immediately when a new waterfront home in Mashta Island hits the market. You can also always contact your ZFC Real Estate agent, who would happily assist you further with all your South Florida real estate needs.

Mashta Island Homes For Sale

$25 Million

MLS#AX-11815194

699 N Mashta Dr
Key Biscayne, FL 33149

4

5

3,241 SqFt

Ocean Access

0.344 Acres

115 Days

$23.9 Million

MLS#AX-11779615

481 S Mashta Drive
Key Biscayne, FL 33149

5

7

2

8,544 SqFt

Ocean Access

0.391 Acres

171 Days

$23.5 Million

MLS#RX-11060323

631 N Mashta Drive
Key Biscayne, FL 33149

4

5

3,720 SqFt

Pool

Intracoastal Waterway

233 Days

3 Active Listings in Mashta Island