Welcome to an extraordinary opportunity to own a rare waterfront gem on the prestigious Mashta Island in Key Biscayne. This single-family home offers direct access to the crystal-clear waters of Biscayne Bay and comes complete with its own private boat slip—making it a dream come true for boating enthusiasts and water lovers alike.
Sitting on an impressive 0.34-acre lot, this property also presents an unparalleled opportunity for those looking to build their dream home. The generous land size, prime waterfront location, and private boat slip provide the perfect foundation to design and create a custom estate tailored to your vision—making this an ideal investment for developers or buyers seeking a truly personalized residence. The home’s location on Mashta Island ensures unmatched exclusivity while being just minutes away from the world-class beaches, dining, and amenities of Key Biscayne.
Opportunities like this are incredibly rare—own a piece of paradise where waterfront living and luxury lifestyle meet. Whether you choose to enjoy the existing residence or build the custom home of your dreams, this is your chance to secure one of the few available homes on Mashta Island with direct water access and a private boat slip. Schedule your private showing today!
Sold for $1,200,000
$1,200,000
699 N Mashta Dr, Key Biscayne, FL 33149
4beds
3,241sqft
SingleFamily
Built in 1965
0.34 Acres Lot
$1,197,100 Zestimate®
$370/sqft
$12,720 Estimated rent
Home value
$1,197,100
$1.05M - $1.36M
$12,720/mo
Zestimate® history
Owner options
List your home for rent
$12,720/mo
Rent Zestimate®
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$12,720/mo
Rent Zestimate®
Refinance and save
$8,614/mo
Est. payment
Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.
$8,614/mo
Est. payment
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List your homeWhat's special
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Interior area
- Total interior livable area: 3,241 sqft
Property
Parking
- Total spaces: 5
- Parking features: Carport
Features
- Exterior features: Other
- Has view: Yes
- View description: Water
- Has water view: Yes
- Water view: Water
Lot
- Size: 0.34 Acres
Details
- Parcel number: 2452050080050
Construction
Type & style
- Home type: SingleFamily
Materials
- special
- Roof: Other
Condition
- Year built: 1965
Community & HOA
Location
- Region: Key Biscayne
Financial & listing details
- Price per square foot: $370/sqft
- Tax assessed value: $7,923,661
- Annual tax amount: $112,329
Price history
| Date | Event | Price |
|---|---|---|
| 6/5/2026 | Sold | $1,200,000-94.7%$370/sqft |
Source: Public Record Report a problem | ||
| 1/2/2026 | Listing removed | $22,500,000$6,942/sqft |
Source: BHHS EWM Realty #A11815194 Report a problem | ||
| 10/15/2025 | Price change | $22,500,000-10%$6,942/sqft |
Source: | ||
| 6/5/2025 | Listed for sale | $25,000,000+25.2%$7,714/sqft |
Source: | ||
| 5/2/2025 | Listing removed | -- |
Source: Owner Report a problem | ||
| 2/23/2025 | Listed for sale | $19,975,000+66.5%$6,163/sqft |
Source: Owner Report a problem | ||
| 11/30/2007 | Listing removed | $12,000,000$3,703/sqft |
Source: Obeo #M1047050 Report a problem | ||
| 11/14/2007 | Listed for sale | $12,000,000+841.2%$3,703/sqft |
Source: Obeo #M1047050 Report a problem | ||
| 9/16/1997 | Sold | $1,275,000$393/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $112,329 +13.3% | $6,509,817 +10% |
| 2024 | $99,176 +7.7% | $5,918,016 +10% |
| 2023 | $92,112 +7.6% | $5,380,015 +10% |
| 2022 | $85,578 +15.2% | $4,890,923 +10% |
| 2021 | $74,268 +1.1% | $4,446,294 -0.1% |
| 2020 | $73,490 -0.3% | $4,448,643 -0.1% |
| 2019 | $73,712 +3.3% | $4,450,993 -0.1% |
| 2018 | $71,331 | $4,453,343 -18.3% |
| 2017 | $71,331 -23.8% | $5,449,089 +10% |
| 2016 | $93,574 +7.3% | $4,953,718 +10% |
| 2015 | $87,183 +9.5% | $4,503,380 +10% |
| 2014 | $79,643 +31.9% | $4,093,982 +10% |
| 2013 | $60,363 0% | $3,721,802 +10% |
| 2012 | $60,364 +12.4% | $3,383,457 +10% |
| 2011 | $53,703 -2.3% | $3,075,870 +5% |
| 2010 | $54,977 -18.4% | $2,928,150 -22.3% |
| 2009 | $67,348 -3.7% | $3,769,367 -5.7% |
| 2007 | $69,930 +32.2% | $3,999,093 |
| 2006 | $52,878 | -- |
| 2005 | $52,878 +43.7% | -- |
| 2004 | $36,788 +12.9% | -- |
| 2003 | $32,576 +16.7% | -- |
| 2002 | $27,926 | -- |
| 2001 | $27,926 | -- |
Find assessor info on the county website
Neighborhood: 33149
Nearby homes
- $14,082,3006 bd8 ba6.9k sqft701 N Mashta Dr, Key Biscayne, FL 33149Off Market
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- $18,500,0004 bd5 ba2.2k sqft631 N Mashta Dr, Key Biscayne, FL 33149For Sale
- $6,725,5006 bd7 ba4.8k sqft650 N Mashta Dr, Key Biscayne, FL 33149Off Market
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Nearby schools
GreatSchools rating
- 8/10Key Biscayne K-8 CenterGrades: PK-8Distance: 0.6 mi
- 5/10Coral Gables Senior High SchoolGrades: PK,9-12Distance: 6.4 mi
- 6/10Ponce De Leon Middle SchoolGrades: 6-8Distance: 6.4 mi
Get a cash offer in 3 minutes
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Estimated market value
$1,197,100
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$1,197,100
- Florida
- Miami-Dade County
- Key Biscayne
- 33149
- 699 N Mashta Dr