Nicolas Escallon
Coldwell Banker Realty
(786) 788-7124
26 Total Sales
5 in Key Biscayne
$780K - $3.1M Price Range
551 S Mashta Dr Key Biscayne, FL 33149
Key Biscayne AreaEstimated Value: $4,823,729 - $5,783,000
6
Beds
5
Baths
3,245
Sq Ft
$1,591/Sq Ft
Est. Value
Highlights
- Guest House
- In Ground Pool
- Roman Tub
- 1 Bedroom Guest House
- Two Primary Bathrooms
- Marble Flooring
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
Rivó Real Estate License #3270204 Listed on: 04/15/2025
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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
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Apr 15, 2025
Closed on
Jul 10, 2025
Sold by
Bought by
Seller's Agent
Joan Bruggink
Rivó Real Estate
Buyer's Agent
Joan Bruggink
Rivó Real Estate
List Price
$5,495,000
Sold Price
$4,700,000
Premium/Discount to List
-$795,000
-14.47%
Views
35
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$462,682
Avg. Annual Appreciation
9.17%
Purchase Details
Closed on
Aug 1, 2019
Sold by
Bought by
Purchase Details
Listed on
Feb 23, 2016
Closed on
Jan 4, 2017
Sold by
Bought by
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
6.06%
Original Mortgage
$137,500
Interest Rate
4.16%
Mortgage Type
Unknown
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Key Biscayne, FL
-
Nicolas Escallon
-
Roberto Morales
Roberto Morales
ElevenOne Realty
(844) 417-0132
11 Total Sales
1 in Key Biscayne
$650,000 Price
-
Maria Corina Martinez
Maria Corina Martinez
Keller Williams Legacy
(855) 233-6865
222 Total Sales
4 in Key Biscayne
$485K - $1.9M Price Range
-
Michelle Kauffmann
Michelle Kauffmann
Miami Portfolio Collection
(786) 460-5090
39 Total Sales
3 in Key Biscayne
$825K - $3.1M Price Range
-
Ramona Bautista
Ramona Bautista
The Keyes Company
(754) 354-3107
101 Total Sales
1 in Key Biscayne
$3,320,000 Price
-
M. Ginette Orozco
M. Ginette Orozco
Responds QuicklyColdwell Banker Realty
(844) 417-0831
12 Total Sales
9 in Key Biscayne
$550K - $3.3M Price Range
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| $4,700,000 | None Listed On Document | ||
| $2,900,000 | Attorney | ||
| $2,937,500 | Attorney |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Previous Owner | $2,730,000 | ||
| Previous Owner | $137,500 | ||
| Previous Owner | $2,362,500 |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 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 | -16.0% | $862 / Sq Ft | View Prior Sale |
| 12/12/2016 12/12/16 | Pending | -- | -- | -- | |
| 02/23/2016 02/23/16 | 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
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| 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
-
Joan Bruggink
J
Seller's Agent in 2025
Joan Bruggink
Rivó Real Estate
(786) 332-1781
21 Total Sales
-
Nerida Deza
N
Buyer's Agent in 2024
Nerida Deza
Keller Williams Capital Realty
(305) 662-7325
55 Total Sales
-
M
Seller Co-Listing Agent in 2017
Michael Russell
London Real Estate Co.
-
Claire Amerena
C
Buyer's Agent in 2017
Claire Amerena
Compass Florida, LLC
(305) 310-4776
2 Total Sales
Map
Source: MIAMI REALTORS® MLS
MLS Number: A11776724
APN: 24-5205-009-0350
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
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