Alexandra Sierra
Compass Florida, LLC
(786) 418-3917
123 Total Sales
1 in Key Biscayne
$1,450,000 Price
750 S Mashta Dr Key Biscayne, FL 33149
Key Biscayne AreaEstimated Value: $5,360,000 - $13,285,369
5
Beds
6.5
Baths
5,967
Sq Ft
$1,549/Sq Ft
Est. Value
Highlights
- 70 Feet of Waterfront
- Ocean View
- Community Boat Dock
- Key Biscayne K-8 Center Rated A-
- Property has ocean access
- Fitness Center
About This Home
As of December 2021ONE & ONLY Open Bay Waterfront Home located at the end of Mashta Dr., the most prestigious street on Key Biscayne. COMPLETELY RENOVATED IN 2015, wide open living spaces ideal for entertainment and spectacular unobstructed ocean views. The Second floor includes 5 Bedroom/ 6.5 Baths. Unique residence has a multilevel structure with master suite on the last floor and expansive waterfront balcony. Enjoy luxury features including an outdoor summer kitchen, wine cellar, and two separate maid’s quarters, Infinity pool, private expansive terraces, gym and private dock, which can accommodate yachts up to 50 feet. Two car garage with storage area, surround sound and security cameras throughout the house.
Last Buyer's Agent
Monica Defortuna
Fortune Christie's Intl R.E. License #0577279
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Home Details
Home Type
- Single Family
Est. Annual Taxes
- $111,775
Year Built
- Built in 1994
Lot Details
- 11,280 Sq Ft Lot
- 70 Feet of Waterfront
- Ocean Front
- East Facing Home
- Rectangular Lot
- Property is zoned 2001
Parking
- 4 Car Attached Garage
- Driveway
- Guest Parking
- Golf Cart Garage
Home Design
- Contemporary Architecture
Interior Spaces
- 5,967 Sq Ft Home
- 3-Story Property
- Built-In Features
- Blinds
- Formal Dining Room
- Marble Flooring
- Ocean Views
- Fire and Smoke Detector
Kitchen
- Breakfast Area or Nook
- Oven
- Microwave
- Ice Maker
- Dishwasher
- Kitchen Island
- Trash Compactor
- Disposal
Bedrooms and Bathrooms
- 5 Bedrooms
- Split Bedroom Floorplan
- Closet Cabinetry
- Walk-In Closet
- Separate Shower in Primary Bathroom
- Soaking Tub
Laundry
- Dryer
- Washer
Outdoor Features
- Above Ground Pool
- Property has ocean access
- Balcony
- Deck
- Open Patio
- Outdoor Living Area
- Exterior Lighting
- Outdoor Grill
Schools
- Key Biscayne K-8 Elementary School
Utilities
- Central Heating and Cooling System
Listing and Financial Details
- Assessor Parcel Number 2452060030010
Community Details
Overview
- No Home Owners Association
- Mashta Point Sub Subdivision
Recreation
- Community Boat Dock
- Recreation Facilities
- Fitness Center
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
Nov 9, 2021
Closed on
Jan 14, 2022
Sold by
Le Glyvec Llc
Bought by
List Price
$11,000,000
Sold Price
$10,900,000
Premium/Discount to List
-$100,000
-0.91%
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
-$66,104
Avg. Annual Appreciation
-3.43%
Original Mortgage
$5,900,000
Outstanding Balance
$5,270,821
Interest Rate
2.5%
Mortgage Type
New Conventional
Estimated Equity
$3,969,969
Purchase Details
Listed on
Nov 9, 2021
Closed on
Dec 21, 2021
Sold by
Maryvadimar Llc
Bought by
Guardalavaca Llc
List Price
$11,000,000
Sold Price
$10,900,000
Premium/Discount to List
-$100,000
-0.91%
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$5,900,000
Outstanding Balance
$5,270,821
Interest Rate
2.5%
Mortgage Type
New Conventional
Estimated Equity
$3,969,969
Purchase Details
Listed on
Sep 16, 2019
Closed on
Apr 29, 2020
Sold by
Caraballo Jorge and Perez Glenda
Bought by
Maryvadimar Llc
Buyer's Agent
Jose Armesto
Semsch Realty
List Price
$7,995,000
Sold Price
$6,600,000
Premium/Discount to List
-$1,395,000
-17.45%
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
35.53%
Original Mortgage
$3,960,000
Interest Rate
3.3%
Mortgage Type
Construction
Purchase Details
Listed on
Sep 27, 2013
Closed on
Feb 18, 2015
Sold by
Olive Developments Llc
Bought by
Caraballo Jorge and Perez Glenda
Seller's Agent
Maureen Jauregui
Coldwell Banker Realty
Buyer's Agent
Maria De Armas
Compass Florida, LLC
List Price
$11,900,000
Sold Price
$9,100,000
Premium/Discount to List
-$2,800,000
-23.53%
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
-6.04%
Original Mortgage
$4,000,000
Interest Rate
3.75%
Mortgage Type
Adjustable Rate Mortgage/ARM
Purchase Details
Closed on
Feb 14, 2012
Sold by
Olive Developments Llc
Bought by
Olive Developments Llc
Purchase Details
Closed on
Nov 3, 2010
Sold by
Lee Andrew R
Bought by
745 South Mashta Drive Llc
Purchase Details
Closed on
Feb 2, 2004
Sold by
Borkowski Ricardo Dunin and Borkowski Claudia Dunin
Bought by
Lampert Bruce and Sierra Land Trust
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,950,000
Interest Rate
3.5%
Mortgage Type
Unknown
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Key Biscayne, FL
-
Alexandra Sierra
-
Massimo Giffuni
Massimo Giffuni
G & C Global Realty LLC
(786) 321-9763
31 Total Sales
2 in Key Biscayne
$685,000 Price Range
-
Richard Corrales
Richard Corrales
Silverleaf Realty Group
(786) 723-7441
128 Total Sales
1 in Key Biscayne
$775,000 Price
-
Floralba Nuñez
Floralba Nuñez
Finca Raiz International Realty Corp
(754) 354-9540
17 Total Sales
2 in Key Biscayne
$675,000 Price Range
-
Paula Sanchez
Paula Sanchez
Unique International Properties
(786) 434-3991
23 Total Sales
7 in Key Biscayne
$1.1M - $2.6M Price Range
-
Eric Farmelant
Eric Farmelant
Compass Florida, LLC
(754) 714-5305
82 Total Sales
2 in Key Biscayne
$680K - $2.7M 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 |
|---|---|---|---|
| $390,000 | Garcia & Xiques Pa | ||
| Guardalavaca Llc | $10,900,000 | Garcia & Xiques Pa | |
| Maryvadimar Llc | $66,000 | South Coast Title Co | |
| Caraballo Jorge | $9,100,000 | Attorney | |
| Olive Developments Llc | -- | Attorney | |
| 745 South Mashta Drive Llc | $6,000,000 | Key International Title & Es | |
| Lampert Bruce | $3,900,000 | -- |
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 |
|---|---|---|---|
| Open | $5,900,000 | ||
| Previous Owner | Maryvadimar Llc | $3,960,000 | |
| Previous Owner | Caraballo Rodriguez Jorge Luis | $600,000 | |
| Previous Owner | Caraballo Jorge | $4,000,000 | |
| Previous Owner | Lampert Bruce | $1,950,000 | |
| Previous Owner | Dunin Borkowsky Ricardo | $1,493,000 | |
| Previous Owner | Borkowsky Ricardo Dunin | $1,500,000 |
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 |
|---|---|---|---|---|---|
| 12/23/2021 12/23/21 | Sold | $10,900,000 | -0.9% | $1,827 / Sq Ft | |
| 11/10/2021 11/10/21 | Pending | -- | -- | -- | |
| 11/09/2021 11/09/21 | For Sale | $11,000,000 | +66.7% | $1,843 / Sq Ft | |
| 04/30/2020 04/30/20 | Sold | $6,600,000 | -17.4% | $1,106 / Sq Ft | View Prior Sale |
| 03/19/2020 03/19/20 | Pending | -- | -- | -- | |
| 09/16/2019 09/16/19 | For Sale | $7,995,000 | -12.1% | $1,340 / Sq Ft | |
| 03/04/2015 03/04/15 | Sold | $9,100,000 | -23.5% | $1,514 / Sq Ft | View Prior Sale |
| 12/02/2014 12/02/14 | Pending | -- | -- | -- | |
| 09/27/2013 09/27/13 | For Sale | $11,900,000 | -- | $1,980 / Sq Ft |
Source: BeachesMLS (Greater Fort Lauderdale)
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 | $156,587 | $10,441,031 | $6,993,600 | $3,447,431 |
| 2024 | $150,384 | $9,916,197 | $6,429,600 | $3,486,597 |
| 2023 | $150,384 | $9,368,805 | $5,843,040 | $3,525,765 |
| 2022 | $142,909 | $8,922,931 | $5,358,000 | $3,564,931 |
| 2021 | $91,136 | $5,473,639 | $4,681,200 | $792,439 |
| 2020 | $111,775 | $6,808,949 | $4,512,000 | $2,296,949 |
| 2019 | $113,110 | $6,833,614 | $4,512,000 | $2,321,614 |
| 2018 | $109,839 | $6,858,277 | $4,512,000 | $2,346,277 |
| 2017 | $119,365 | $7,389,048 | $0 | $0 |
| 2016 | $122,560 | $7,411,594 | $0 | $0 |
| 2015 | $95,735 | $5,664,587 | $0 | $0 |
| 2014 | $95,082 | $5,339,890 | $0 | $0 |
Source: Public Records
Agents Affiliated with this Home
-
MD
Buyer's Agent in 2021
Monica Defortuna
Fortune Christie's Intl R.E.
-
Carla Defortuna
Seller Co-Listing Agent in 2020
Carla Defortuna
Fortune Christie's Intl R.E.
(305) 856-2600
11 Total Sales
-
Jose Armesto
JA
Buyer's Agent in 2020
Jose Armesto
Semsch Realty
(305) 812-5931
-
MJ
Seller's Agent in 2015
Maureen Jauregui
Coldwell Banker Realty
-
Emma Jauregui
Seller Co-Listing Agent in 2015
Emma Jauregui
Coldwell Banker Realty
(786) 201-1707
42 Total Sales
-
Maria De Armas
Buyer's Agent in 2015
Maria De Armas
Compass Florida, LLC
(305) 790-8729
29 Total Sales
Map
Source: BeachesMLS (Greater Fort Lauderdale)
MLS Number: A11118843
APN: 24-5206-003-0010
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.
All listings featuring the BMLS logo are provided by Beaches MLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright 2026 Beaches Multiple Listing Service, Inc. Information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
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