591 N Mashta Drive
591 N Mashta Drive, Key Biscayne, FL 33149
1 / 15
591 N Mashta Drive 591 N Mashta Drive, Key Biscayne, FL 33149 Sold
$14,000,000
591 N Mashta Drive · Key Biscayne · Key Biscayne
591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 1 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 2 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 3 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 4 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 5 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 6 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 7 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 8 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 9 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 10 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 11 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 12 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 13 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 14 of 15591 N Mashta Drive, 591 N Mashta Drive, Key Biscayne FL 33149, photo 15 of 15
$14,000,000Sold Price
$3,263Per SqFt
4/4½Beds/BathsBd/Ba
4,290SqFt · 398.6 m²
MLS A11924175 · 245 days on Zilbert · Listed Jan 15, 2026 · 591 N Mashta Drive, Key Biscayne FL 33149Current layoutPhotos first

Property Details

Sold Price$14,000,000
Last Asking Price$15,500,000
Price per SqFt$3,263
Maintenance feeInquire
Property Taxes$112,793 2025
Interior Space4,290 SqFt
Beds/Baths4/4½
Year Built1960
Garage2 spaces
PoolYes
Lot Size0.35 acres
Closed Date8/3/2026
MLS #A11924175

Estimated Costs

An estimate of condo or HOA fees and property taxes

Monthly figures, as provided
Not providedmaintenance
$9,399taxes · $112,793/yr ÷ 12

Monthly carry is not computed when the association fee or the taxes are not provided.

From the listing

BEAUTIFUL AND UNIQUE WATERFRONT HOME ON EXCLUSIVE MASHTA ISLAND, ON DESIRABLE NORTH MASHTA DR IN KEY BISCAYNE. ELEVATED AND VERY COMFORTABLE 4BR/4.5BA + MAID’S QUARTERS WITH APPROX. 4,290 SQ FT UNDER A/C, SITTING ON A LARGE AND PRIVATE 15,184 SQ FT LOT, IDEAL FOR ENJOYING WITH FAMILY AND FRIENDS.APPROX. 50 FT DOCK WHERE THE OWNERS HAVE DOCKED BOATS OF AROUND 78 FT, WITH DEEP WATER OF ABOUT 8 FT EVEN AT LOW TIDE – A RARE TRUE DEEP-WATER ACCESS ON THE ISLAND. NORTH-FACING CANAL KEEPS THE HOUSE AND OUTDOOR AREAS PLEASANT AND COOLER ALL YEAR ROUND. EASY TO SHOW. BRING YOUR QUALIFIED BUYERS AND BEST OFFERS.

Listed by EXP Realty LLC

Sales History for This Home · 591 N Mashta Drive, Key Biscayne, FL 33149

Sales history is unavailable for this property

Mark Zilbert
Mark Zilbert
Licensed Real Estate Broker · I track every sale in this neighborhood. Ask me about this home or the neighborhood.
+1 (786) 280-0201

Listed by EXP Realty LLC. Mark Zilbert of ONE Sotheby's International Realty is a cooperating (transaction) broker and helps buyers find properties in Key Biscayne and throughout South Florida.

Location

Directions

The curated data and calculated data for this property and its surrounding condo units and homes is based solely on data we have extracted from the MLS. There may be unpublished, private, quit claim and other property offerings and transfers that do not appear here, which may affect how a buyer or seller perceives property values. Always conduct proper due diligence when considering buying or selling property.