551 S Mashta Dr Key Biscayne, FL 33149
Village of Key Biscayne Neighborhood
6
Beds
5
Baths
3,245
Sq Ft
10,000
Sq Ft Lot
Highlights
- Guest House
- 1 Bedroom Guest House
- Two Primary Bathrooms
- Key Biscayne K-8 Center Rated A-
- In Ground Pool
- Roman Tub
About This Home
As of July 2025Your tropical private retreat on exclusive Mashta Island. This 6 bed / 5 bath, 3,245 SF Mediterranean villa sits on a spacious 10,000 SF lot with lush landscaping, a resort-style pool, and a private cabana guest suite. Interiors with soaring 10-foot ceilings flow seamlessly to the outdoors, perfect for entertaining and relaxed island living. Intentionally designed with two primary suites (first floor and second floor) enhancing comfort and privacy. The chef’s kitchen features a gas stove, cooking island, and SubZero refrigerator. Enjoy private balconies, a circular driveway, an attached 2-car garage with laundry, covered porches, and generous storage. Key Biscayne offers the ultimate family lifestyle with world-class amenities and a true sense of community.
Last Agent to Sell the Property
MMLS Assoc.-Inactive Member License #3270204 Listed on: 04/15/2025
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $50,906
Year Built
- Built in 1961
Lot Details
- 10,000 Sq Ft Lot
- South Facing Home
- Fenced
- Property is zoned 2001
Parking
- 2 Car Attached Garage
- Automatic Garage Door Opener
- Driveway
- Guest Parking
- Open Parking
Home Design
- Mediterranean Architecture
- Barrel Roof Shape
- Concrete Block And Stucco Construction
Interior Spaces
- 3,245 Sq Ft Home
- 2-Story Property
- Furniture for Sale
- Skylights
- Fireplace
- Blinds
- Family Room
- Den
- Utility Room in Garage
- Marble Flooring
- Garden Views
- Complete Impact Glass
Kitchen
- Breakfast Area or Nook
- Eat-In Kitchen
- Gas Range
- Dishwasher
- Cooking Island
- Disposal
Bedrooms and Bathrooms
- 6 Bedrooms
- Primary Bedroom on Main
- Primary Bedroom Upstairs
- Split Bedroom Floorplan
- Walk-In Closet
- Two Primary Bathrooms
- 5 Full Bathrooms
- Dual Sinks
- Roman Tub
- Separate Shower in Primary Bathroom
Laundry
- Laundry in Garage
- Dryer
- Washer
Outdoor Features
- In Ground Pool
- Balcony
- Patio
- Exterior Lighting
Additional Homes
- Guest House
- 1 Bedroom Guest House
- One Bathroom Guest House
Utilities
- Central Heating and Cooling System
Listing and Financial Details
- Assessor Parcel Number 24-52-05-009-0350
Community Details
Overview
- No Home Owners Association
- Mashta Island A Replat Of Subdivision
Recreation
- Beach Club Membership Available
Ownership History
Date
Name
Owned For
Owner Type
Purchase Details
Closed on
Aug 1, 2019
Sold by
Lopez Arture Castelo and Delgado Maria Pilar
Bought by
Rphl Capital Llc
Purchase Details
Listed on
Feb 22, 2016
Closed on
Jan 4, 2017
Sold by
White John E and Serpico Nancie
Bought by
Lopez Arturo Castelo and Delgado Maria Pilar
Seller's Agent
Claire Amerena
Compass Florida, LLC
Buyer's Agent
Claire Amerena
Compass Florida, LLC
List Price
$3,495,000
Sold Price
$2,937,500
Premium/Discount to List
-$557,500
-15.95%
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
6.77%
Original Mortgage
$137,500
Interest Rate
4.16%
Mortgage Type
Unknown
Similar Homes in Key Biscayne, FL
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Home Values in the Area
Average Home Value in this Area
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Warranty Deed | $2,900,000 | Attorney | |
| Warranty Deed | $2,937,500 | Attorney |
Source: Public Records
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $2,730,000 | New Conventional | |
| Previous Owner | $137,500 | Unknown | |
| Previous Owner | $2,362,500 | Seller Take Back |
Source: Public Records
Property History
| Date | Event | Price | Change | Sq Ft Price |
|---|---|---|---|---|
| 07/10/2025 07/10/25 | Sold | $4,700,000 | -14.5% | $1,448 / Sq Ft |
| 04/15/2025 04/15/25 | For Sale | $5,495,000 | 0.0% | $1,693 / Sq Ft |
| 01/31/2024 01/31/24 | Rented | $19,000 | 0.0% | -- |
| 01/26/2024 01/26/24 | Under Contract | -- | -- | -- |
| 01/22/2024 01/22/24 | For Rent | $19,000 | 0.0% | -- |
| 01/10/2017 01/10/17 | Sold | $2,937,500 | -8.1% | $862 / Sq Ft |
| 12/12/2016 12/12/16 | Pending | -- | -- | -- |
| 08/23/2016 08/23/16 | Price Changed | $3,195,000 | -8.6% | $938 / Sq Ft |
| 02/22/2016 02/22/16 | For Sale | $3,495,000 | 0.0% | $1,026 / Sq Ft |
| 10/02/2014 10/02/14 | Rented | $12,500 | -10.7% | -- |
| 09/02/2014 09/02/14 | Under Contract | -- | -- | -- |
| 04/26/2014 04/26/14 | For Rent | $14,000 | -- | -- |
Source: MIAMI REALTORS® MLS
Tax History Compared to Growth
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $50,907 | $3,170,313 | -- | -- |
| 2024 | $49,328 | $2,882,103 | -- | -- |
| 2023 | $49,328 | $2,620,094 | $0 | $0 |
| 2022 | $41,335 | $2,381,904 | $0 | $0 |
| 2021 | $36,734 | $2,165,368 | $1,650,000 | $515,368 |
| 2020 | $35,876 | $2,170,395 | $1,650,000 | $520,395 |
| 2019 | $34,591 | $2,126,609 | $1,650,000 | $476,609 |
| 2018 | $35,430 | $2,251,136 | $1,770,000 | $481,136 |
| 2017 | $36,480 | $2,257,502 | $0 | $0 |
| 2016 | $37,428 | $2,261,094 | $0 | $0 |
| 2015 | $35,311 | $2,087,668 | $0 | $0 |
| 2014 | $12,876 | $780,926 | $0 | $0 |
Source: Public Records
Agents Affiliated with this Home
-
J
Seller's Agent in 2025
Joan Bruggink
MMLS Assoc.-Inactive Member
-
B
Seller's Agent in 2024
Brigitte De Langeron
DLS International Realty
-
N
Buyer's Agent in 2024
Nerida Deza
Keller Williams Capital Realty
-
C
Seller's Agent in 2017
Claire Amerena
Compass Florida, LLC
-
M
Seller Co-Listing Agent in 2017
Michael Russell
London Real Estate Co.
Map
Source: MIAMI REALTORS® MLS
MLS Number: A11776724
APN: 24-5205-009-0350
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