Premier Brokers International
571 S Mashta Drive, Key Biscayne, FL 33149
ActiveMLS listing sourceMIAMI REALTORS® MLS
ActiveMLS® A12076783
$6,350,000

571 S Mashta Drive, Key Biscayne, FL 33149

Beds
4
Baths
3
Sqft
2,761
Est. payment$40,752/mo
Home type
Single Family Residence
Year built
1964
Lot size
10,019 sqft
Price / sqft
$2,300
HOA
$0/mo
Community
MASHTA ISLAND A REPLAT OF

Property description

Enjoy your own paradise in the paradise—an exceptional, move-in-ready residence on prestigious Mashta Island, one of Key Biscayne's most exclusive and tranquil enclaves. Beautifully remodeled and designed for relaxed yet sophisticated island living, this home offers exceptional indoor and outdoor spaces to enjoy with family and friends. Outdoor living takes center stage with a heated pool and spectacular covered entertainment area featuring a custom BBQ, grill, sink, granite counters and seating for up to 12 guests—the perfect setting for weekend gatherings, celebrations and year-round enjoyment of the Key Biscayne lifestyle. Bright, inviting interiors feature a spacious open layout that seamlessly connects the living, dining and kitchen areas. The impressive chef's kitchen is equipped with premium Viking appliances, generous cooking island and abundant granite counter space. Marble flooring enhances the main living areas, while warm wood floors add character to the private bedroom spaces. The primary suite opens directly to the pool area and features a large walk-in closet and a luxurious bath with steam shower. The property is on a 10,000 SF lot with an ample circular driveway, covered garage for two vehicles and a large additional side parking.

Listing activity

Days on market
61
Listed
Aug 24, 2026
MLS listing updated
Aug 30, 2026
Feed last checked
2 minutes ago

Listed by Adolfo I Yanes Luciani · HR 19 Realty LLC

Map

Map location is based on MLS-supplied coordinates. Verify the location before relying on it.

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms
4
Bathrooms
3
Bathrooms (decimal)
3
Full bathrooms
3
Half bathrooms
0

Rooms & features

Rooms
1
Interior features
Bar, Built-in Features, Closet Cabinetry, Kitchen Island, Walk-In Closet(s)
Flooring
Ceramic Tile, Marble, Parquet
Appliances
Gas Water Heater, Dishwasher, Disposal, Dryer, Electric Range, Free-Standing Freezer, Gas Range, Ice Maker, Microwave, Oven, Refrigerator, Washer
Fireplace
Yes
Furnished
Unfurnished
Window features
Blinds, Other
Other equipment
Fuel Tank(s)

Heating & cooling

Heating
Central, Electric
Cooling
Central Air, Electric
Property

Parking

Garage spaces
2
Garage
Yes
Covered spaces
2
Parking features
Attached, Attached Garage, Driveway, Garage, Garage Door Opener
Attached garage
Yes

Exterior

Stories
1
Building area
3,722 sqft
Entry level
1
Patio & porch
Porch - Open, Porch, Deck
Exterior features
Barbecue, Built-in Barbecue, Lighting
Fencing
Fenced
Other structures
Outbuilding
Pool
Yes
Pool features
Concrete, Equipment Included
Waterfront property
No

Lot

Lot size
10,019 sqft
Lot size (acres)
0.23 acres
Lot dimensions
10000
Zoning
2001
Road surface
Paved
Construction

Type & style

Home type
Single Family Residence
Year built
1964

Materials

Construction
Block
Roof
Shingle
Levels
One
Faces
Southwest
Utilities & green energy

Utilities

Electric
Circuit Breakers
Sewer
Public Sewer
Water
Public
Community & HOA

Community

Subdivision
MASHTA ISLAND A REPLAT OF
MLS area
2520
Pets allowed
Yes
55+ community
No

Association

Has association
No
Estimated monthly dues
$0
Lease details

Not reported by the listing source.

Location

Area details

City
Key Biscayne
County
Miami-Dade
ZIP code
33149
Manufactured home details

Not reported by the listing source.

Financial & listing details

Listing

MLS number
A12076783
Possession
Close Of Escrow
Original list price
$5,950,000
Parcel number
2452050090370
Annual property tax
$55,539
Tax year
2025
Tax legal description
5-6 55 42 MASHTA ISLAND A REPLAT OF TRS A B & C PB 65-65 LOT 17 BLK 4 LOT SIZE 100.000 X 100 OR 16975-0825 1095 1 COC 24379-0228 03 2006 1
Additional MLS details

Reported by the listing source

Association
No
Bathrooms Total Decimal
3
Bathrooms Total Integer
3
Building Area Total
3722
Construction Materials
Block
County Or Parish
Miami-Dade
Days On Market
61
Direction Faces
Southwest
Elementary School
Key Biscayne K-8
High School
Coral Gables
List Price
6350000
Listing Contract Date
2026-08-24
Living Area
2761
Lot Size Acres
0.23
Lot Size Area
10000
Lot Size Dimensions
10000
MLSArea Major
2520
Middle Or Junior School
Ponce De Leon
Mls Status
Active
On Market Date
2026-08-24
Patio And Porch Features
Porch - Open, Porch, Deck
Photos Count
34
Postal Code
33149
Price Change Timestamp
2026-08-29T15:14:41Z
Property Sub Type
Single Family Residence
Property Type
Residential
Road Surface Type
Paved
Rooms Total
1
Senior Community
No
Standard Status
Active
State Or Province
FL
Status Change Timestamp
2026-08-24T04:00:00Z
Stories Total
1
Subdivision Name
MASHTA ISLAND A REPLAT OF
Water Source
Public
Tax Annual Amount
55539
Bathrooms Full
3
Pool Private
Yes
Bedrooms Total
4
Waterfront
No
Bathrooms Half
0

Market value

Automated estimate—No licensed valuation source connected
Estimated sales range—Ask Karim for a local market analysis
Estimated rent—No licensed rental valuation source connected

Price history

DateEventPrice
Aug 24, 2026ListedMIAMI REALTORS® MLS$5,950,000$2,155/sqft
Aug 30, 2026Price updatedMIAMI REALTORS® MLS$6,350,000$2,300/sqft

Public tax history

YearProperty taxesAssessment
2025$55,539—

Payment calculator

Estimated monthly payment$40,752/moIllustrative estimate, not a loan offer.
Principal & interest
$32,949
Property taxes
$4,628
Insurance
$3,175
Association dues
$0

Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.

Neighborhood

Area

MASHTA ISLAND A REPLAT OF

Key Biscayne · Miami-Dade County · 33149

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Key Biscayne K-8Elementary
—
Ponce De LeonMiddle
—
Coral GablesHigh
—
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

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12 homes

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MLS listing source

MIAMI REALTORS® MLS · Listing courtesy of HR 19 Realty LLC. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers’ personal, non-commercial use and may be used only to identify prospective properties they may be interested in purchasing or leasing. Terms of use · Equal Housing Opportunity.