820 Mashta Pl
Key Biscayne, FL 33149
- 6 Beds
- 6 Baths
- 8,686 sqft (on 17 acres)
6 Beds
6 Baths
8,686 sqft
(on 17 acres)
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1996
Lot Size
17 acres
Living Area
8,686 sqft
Price/Sqft
$4,051
About this House
Magnificent waterfront estate in exclusive Mashta Point. Panormaic views of ocean, bay and Miami skyline. Located on a private secure road gated road. This majestic and beautifully designed residence offers exceptional quality and detail throughout.
820 Mashta Pl, Key Biscayne, FL 33149 is a 6 bedroom, 6 bathroom, 8,686 sqft single-family home built in 1996. It last sold for $6,950,000 on Dec 29, 2011. It is currently off market. The Trulia Estimate is $35,183,400, with a rent estimate of $151,188/month.
Home Details for 820 Mashta Pl
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Levels, Entrance, & Accessibility Stories: 2Elevator |
Fireplace & Spa Hot Tub or Spa |
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Exterior Home Features Roof: OtherExterior: StuccoPatio |
Pool Pool |
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Year Built Year Built: 1996Year Updated: 1996 |
Property Type / Style Property Type: Single Family Home |
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Units in Building: 1 |
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Lot Area: 17.00 acres |
Price History for 820 Mashta Pl
| Date | Price | Event | Source |
|---|---|---|---|
| 12/29/2011 | $6,950,000 | Sold | N/A |
| 12/30/2010 | $8,499,999 | Sold | N/A |
| 09/25/2010 | $9,500,000 | ListingRemoved | Agent Provided |
| 03/26/2010 | $9,500,000 | Listed For Sale | Agent Provided |
| 05/02/2005 | $4,425,000 | Sold | N/A |
| 09/06/2003 | $4,100,000 | Sold | N/A |
| 10/11/2001 | $4,000,000 | Sold | N/A |
Market trends in Key Biscayne
Last updated June 2026
Avg. sale price
$1.58M
$113KMoM
Sale-to-List Price
—
Price per sq ft
$945
$37MoM
Available listings
159
9MoM
Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $366,860 |
| Assessment | $29,987,024 |
Home facts updated by county records
Comparable Sales for 820 Mashta Pl
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.39 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.49 | Single-Family Home | $6,350,000 | 07/31/25 | 5 | 5.5 | 3,525 | |
0.26 | Single-Family Home | $23,500,000 | 07/06/26 | 3 | 5 | 10,926 | |
0.14 | Single-Family Home | $4,750,000 | 02/04/26 | 4 | 3.5 | 3,382 | |
0.60 | Single-Family Home | $6,500,000 | 03/31/26 | 7 | 7.5 | 5,528 | |
0.50 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.62 | Single-Family Home | $4,820,000 | 08/15/25 | 6 | 6.5 | 4,165 | |
0.15 | Single-Family Home | $1,200,000 | 06/05/26 | 4 | 4.5 | 3,241 | |
0.73 | Single-Family Home | $6,275,000 | 12/11/25 | 5 | 5.5 | 3,525 | |
0.71 | Single-Family Home | $5,690,000 | 06/15/26 | 6 | 5 | 3,584 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 820 Mashta Pl.
What Locals Say about Key Biscayne
At least 116 Trulia users voted on each feature.
94 % Say it's walkable to grocery stores
94 % Say kids play outside
90 % Say it's dog friendly
90 % Say it's walkable to restaurants
86 % Say people would walk alone at night
86 % Say there are sidewalks
79 % Say it's quiet
79 % Say there's holiday spirit
76 % Say they plan to stay for at least 5 years
68 % Say parking is easy
67 % Say streets are well-lit
60 % Say there are community events
58 % Say neighbors are friendly
54 % Say yards are well-kept
52 % Say there's wildlife
50 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
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