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$23,500,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 4 Full Baths
  • 1 Partial Bath
  • 2,255 Sq. Ft.
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BRING ALL OFFERS - Waterfront Dream Home in the Making!Key Biscayne's Ultimate Boater's Paradise - Fully Renovated Luxury Residence Coming SoonThis is a rare and exceptional opportunity to own a like-new, fully renovated luxury home in one of Key Biscayne's most exclusive waterfront enclaves. Currently under an extensive renovation with expected completion in approximately 5 months, this residence is being reimagined with the highest standards of modern design, comfort, and functionality.A Complete Transformation - Inside and OutThis is not just a cosmetic update -- this is a down-to-the-studs, full-scale renovation that will result in a completely refreshed and reimagined home. Upon completion, this property will boast:

Full Property Details for 631 N Mashta Dr

General

  • Price: $23,500,000
  • Taxes: $99,103 (2024)
  • Status: Active
  • Type: Single Family
  • Source: Regional
  • MLS ID: RX-11060323
  • Updated: 4/17/2025
  • Added to Site: 345 day(s) ago

Interior

  • Rooms/Areas: None
  • Interior Features: None
  • Appliances: None
  • Furnishings: Unfurnished
  • Flooring: Concrete

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 4
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 4
  • Bedroom/Bathroom: None
  • Primary Bedroom: 25 x 20

Other Rooms

  • Living Room: 16 x 22
  • Kitchen: 12 x 11
  • Dining Room: 12 x 14

Additional Information

  • Shared Amenities: Boating
  • Pool: Yes
  • Private Pool: Yes
  • Pool Description: Equipment Included, In-Ground

Exterior

  • Exterior Features: Covered Patio, Open Patio

Parking

  • Carport Spaces: 2
  • Parking Features: Carport - Attached, Driveway

Location

  • Area: 2290, DADE
  • County: Miami-Dade
  • Subdivision: Mashta Island

Community

  • Home Owners Assn.: None
  • Pets Allowed: Yes
  • Governing Bodies: None

Heating & Cooling

  • Cooling Type: Central
  • Heating Type: Central, Electric

Utilities

  • Utility Description: None

Structural Information

  • Construction: Brick, Concrete
  • Square Feet: 2,255
  • Sq. Ft. Source: Appraisal
  • Year Built: 1958

Lot Features

  • Property View: Intracoastal, Pool
  • Zoning: 101

Water Features

  • Water Front: Yes
  • Water View: Yes
  • Water Front Desc.: Intracoastal, No Fixed Bridges, Seawall
  • Water Front Feet: 100
  • Boat Dock Slip: Yes
  • Boat Services: Private Dock

Financial Considerations

  • Price Per Sq. Ft.: $10,421.29
  • Tax Amount: $99,103
  • Tax Year: 2024
  • Terms: Cash, Conventional

Disclosures and Reports

  • Legal Description: MASHTA ISLAND PB 60-93 LOT 7 BLK 1 LOT SIZE 100.000 X 150 OR 17980-3315 0198 4
  • Restrictions: None
  • APN: 2452050080070
Buyer's Brokerage Compensation: Contact Listing Agent
Not binding unless confirmed by separate agreement among applicable parties.

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— 631 N Mashta Dr —

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NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Schools serving 631 N Mashta Dr

School District:Dade County School District
NameGradesDistance
Key Biscayne K-8 Center
150 West McIntyre Street, Key Biscayne, FL 33149
PK-50.5 mi
Ponce De Leon Middle School
5801 Augusto Street, Coral Gables, FL 33146
6-86.4 mi
Coral Gables Senior High School
450 Bird Road, Coral Gables, FL 33146
9-126.5 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 631 N Mashta Dr Get Price Alerts and Save Property

Date
Details
Price
Change
Source
2/05/2025
Listed
$23,500,000
176.47%
MLS
2/28/2022
Sold
$8,500,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 631 N Mashta Dr

Year
Property Taxes
Change
Tax Assessment
Change
2024
$99,103
-4%
$6,916,728
9%
2023
$102,890
48%
$6,371,245
45%
2021
$69,647
-17%
$4,397,303
-27%
2022
$83,488
20%
$6,027,358
37%
2021
$69,647
2%
$4,397,371
—
2019
$68,482
-3%
$4,397,439
—
2018
$70,437
-20%
$4,397,507
-29%
2017
$88,236
2%
$6,182,575
38%
2016
$86,441
5%
$4,464,333
10%
2015
$82,558
10%
$4,058,485
10%
2014
$75,353
23%
$3,689,532
10%
2013
$61,219
—
$3,354,120
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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631 N Mashta Drive, Key Biscayne, FL 33149 (MLS# RX-11060323) is a Single Family property with 4 bedrooms, 4 full bathrooms and 1 partial bathroom. 631 N Mashta Drive is currently listed for $23,500,000 and was received on February 05, 2025. This property is listed by Javier Quiroz from our The Boca Raton Resort & Beaches Office.Want to learn more about 631 N Mashta Drive? Do you have questions about finding other Single Family real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.

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