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.
Under contract
$15,500,000
591 N Mashta Dr, Key Biscayne, FL 33149
4beds
4,290sqft
Single Family Residence
Built in 1960
0.35 Acres Lot
$-- Zestimate®
$3,613/sqft
$-- HOA
What's special
Waterfront home
- 216 days |
- 44 |
- 1 |
Zillow last checked:
Listing updated:
Listed by:
Cristina D Anglemont De Tassigny 786-473-0860,
EXP Realty LLC
Source: MIAMI,MLS#: A11924175
Originating MLS: A-Miami Association of REALTORS
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Heating
- Central
Cooling
- Central Air
Appliances
- Included: Trash Compactor, Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Gas Range
Features
- Flooring: Other, Wood
Interior area
- Total structure area: 6,219
- Total interior livable area: 4,290 sqft
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Other
- Garage spaces: 2
Features
- Stories: 1
- Entry location: First Floor Entry
- Patio & porch: Deck
- Has private pool: Yes
- Pool features: In Ground
- Has view: Yes
- View description: Canal, Water
- Has water view: Yes
- Water view: Canal,Water
- Waterfront features: Ocean Access, Canal Front, WF/Pool/Ocean Access
- Frontage length: 0
Lot
- Size: 0.35 Acres
- Features: 1/4 To Less Than 1/2 Acre Lot
Details
- Parcel number: 2452050090040
- Zoning: 2001
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Block
- Roof: Aluminum
Condition
- Year built: 1960
Utilities & green energy
- Sewer: Septic Tank
- Water: Municipal Water
Community & HOA
Community
- Features: None, No Subdiv/Park Info
- Subdivision: Mashta Island A Replat Of
HOA
- Has HOA: No
Location
- Region: Key Biscayne
Financial & listing details
- Price per square foot: $3,613/sqft
- Tax assessed value: $8,275,489
- Annual tax amount: $112,793
- Date on market: 11/26/2025
- Listing terms: All Cash,Conventional,FHA,FHA-Va Approved
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/23/2026 | Pending sale | $15,500,000$3,613/sqft |
Source: | ||
| 5/29/2026 | Contingent | $15,500,000$3,613/sqft |
Source: eXp Realty #A11924175 Report a problem | ||
| 3/20/2026 | Price change | $15,500,000-8.6%$3,613/sqft |
Source: | ||
| 1/15/2026 | Listed for sale | $16,950,000+424.8%$3,951/sqft |
Source: | ||
| 10/1/2024 | Listing removed | $38,000$9/sqft |
Source: Zillow Rentals Report a problem | ||
| 6/25/2024 | Listed for rent | $38,000$9/sqft |
Source: Zillow Rentals Report a problem | ||
| 6/24/2024 | Listing removed | -- |
Source: | ||
| 11/16/2023 | Listed for rent | $38,000$9/sqft |
Source: | ||
| 3/5/2004 | Sold | $3,230,000$753/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $112,793 +13.1% | $6,316,504 +10% |
| 2024 | $99,689 +7.5% | $5,742,277 +10% |
| 2023 | $92,749 +7.3% | $5,220,252 +10% |
| 2022 | $86,435 +10.3% | $4,745,684 +1.1% |
| 2021 | $78,343 +0.9% | $4,693,859 -0.1% |
| 2020 | $77,614 -0.3% | $4,698,283 -0.1% |
| 2019 | $77,880 +3.3% | $4,702,705 -0.1% |
| 2018 | $75,396 | $4,707,128 -8.9% |
| 2017 | $75,396 -59% | $5,168,614 +10% |
| 2016 | $183,923 +111.2% | $4,698,740 +10% |
| 2015 | $87,102 +9.2% | $4,271,582 +10% |
| 2014 | $79,738 +28.2% | $3,883,257 +4.1% |
| 2013 | $62,198 0% | $3,728,922 +9.9% |
| 2012 | $62,198 +8.3% | $3,391,608 +10% |
| 2011 | $57,437 -2.6% | $3,083,280 -1.8% |
| 2010 | $58,970 -17% | $3,140,867 -20.6% |
| 2009 | $71,032 -3.9% | $3,955,849 -6.4% |
| 2007 | $73,877 +32.4% | $4,224,871 |
| 2006 | $55,800 | -- |
| 2005 | $55,800 +21.9% | -- |
| 2004 | $45,789 +31.5% | -- |
| 2003 | $34,829 +27.9% | -- |
| 2002 | $27,242 -10.2% | -- |
| 2001 | $30,344 | -- |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: 33149
Nearby schools
GreatSchools rating
- 8/10Key Biscayne K-8 CenterGrades: PK-8Distance: 0.5 mi
- 5/10Coral Gables Senior High SchoolGrades: PK,9-12Distance: 6.5 mi
- 6/10Ponce De Leon Middle SchoolGrades: 6-8Distance: 6.5 mi
Schools provided by the listing agent
- Elementary: Keybiscayne
- Middle: Ponce De Leon
- High: Coral Gables
Source: MIAMI. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- Florida
- Miami-Dade County
- Key Biscayne
- 33149
- 591 N Mashta Dr







