669 S Mashta Dr
Key Biscayne, FL 33149
- 4 Beds
- 3.5 Baths
- 3,382 sqft
4 Beds
3.5 Baths
3,382 sqft
We estimate this home will sell faster than 95% nearby.
Local Information
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Description
Located on the exclusive and highly sought-after Mashta Island, this exceptional property offers a rare opportunity to build your dream home or enjoy the existing beautifully refurbished residence. The home features new bathrooms, updated flooring, and tasteful modern finishes throughout. Designed for relaxed Florida living, the spacious covered terrace overlooks a stunning mosaic-tiled pool, creating the perfect setting for entertaining or enjoying the tropical surroundings. A unique opportunity in one of Key Biscayne's most desirable neighborhoods. Easy to show.
We estimate this home will sell faster than 95% nearby.
Home Highlights
Parking
Open Parking
Outdoor
Patio, Pool
View
Garden
HOA
None
Price/Sqft
$1,715
Listed
15 days ago
Home Details for 669 S Mashta Dr
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Beds & Baths Number of Bedrooms: 4Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (half): 1 |
Dimensions and Layout Living Area: 3382 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Disposal, Dryer, Gas Range, Refrigerator, Self Cleaning Oven, Oven, WasherDishwasherDisposalDryerRefrigeratorWasher |
Heating & Cooling Heating: Heat StripHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Heat Strip |
Gas & Electric Electric: Circuit Breakers |
Windows, Doors, Floors & Walls Window: Clear Impact Glass, Partial Accordian Shutters, Partial Impact Glass, Hurricane Shutters, Blinds, Impact GlassFlooring: Vinyl |
Levels, Entrance, & Accessibility Stories: 2Floors: Vinyl |
View Has a ViewView: Garden |
Security Security: Smoke Detector |
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Exterior Home Features Roof: Tar GravelPatio / Porch: PatioExterior: Outdoor ShowerHas a Private Pool |
Parking & Garage No GarageHas Open ParkingParking: Driveway |
Pool Pool: Above Ground, Pool OnlyPool |
Frontage Road Frontage: Public RoadNot on Waterfront |
Water & Sewer Sewer: Public Sewer |
Farm & Range Not Allowed to Raise Horses |
Surface & Elevation Elevation Units: Feet |
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Days on Market: 15 |
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Year Built Year Built: 1960 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: House,Attached |
Building Building Name: Mashta IslandConstruction Materials: CBS Construction |
Property Information Parcel Number: 2452050080180 |
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Price List Price: $5,799,000Price Per Sqft: $1,715 |
Status Change & Dates Possession Timing: Funding |
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MLS Status: Active |
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Direction & Address City: Key BiscayneCommunity: Mashta Island |
School Information Elementary School: KeybiscayneJr High / Middle School: Ponce De LeonHigh School: Coral Gables |
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Listing Agent Listing ID: A12033340 |
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Building Area Building Area: 3382 Square Feet |
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Community Features: HOA |
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Association for this Listing: A-Miami Association of REALTORSNo HOA |
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Lot Area: 10000 sqft |
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Listing Terms: All Cash, Conventional |
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Mls Number: A12033340 |
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HOASource Internet Entire Listing Display |
Last check for updates: about 5 hours ago
Listing courtesy of Maureen Jauregui, (305) 798-3124
Coldwell Banker Realty
Emma Jauregui, (786) 201-1707
Coldwell Banker Realty
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A12033340

Also Listed on MIAMI.
Market trends in Key Biscayne
Last updated May 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
167
2MoM
Price History for 669 S Mashta Dr
| Date | Price | Event | Source |
|---|---|---|---|
| 06/08/2026 | $5,799,000 | Listed For Sale | MIAMI #A12033340 |
| 02/04/2026 | $4,750,000 | Sold | MIAMI #A11922444 |
| 01/08/2026 | $4,950,000 | Pending | MIAMI #A11922444 |
| 12/01/2025 | $4,950,000 | Listed For Sale | MIAMI #A11922444 |
| 06/27/2025 | $3,465,000 | Sold | MIAMI #A11729326 |
| 06/17/2025 | $3,900,000 | Pending | MIAMI #A11729326 |
| 03/11/2025 | $3,900,000 | PriceChange | MIAMI #A11729326 |
| 03/05/2025 | $4,295,000 | PriceChange | MIAMI #A11729326 |
| 02/13/2025 | $4,490,000 | PriceChange | MIAMI #A11729326 |
| 02/03/2025 | $4,995,000 | Listed For Sale | MIAMI #A11729326 |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $22,931 |
| Assessment | $3,532,833 |
Home facts updated by county records
Comparable Sales for 669 S Mashta Dr
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.16 | Single-Family Home | $4,700,000 | 07/10/25 | 6 | 5 | 3,245 | |
0.32 | Single-Family Home | $3,450,000 | 07/21/25 | 4 | 3 | 3,004 | |
0.43 | Single-Family Home | $3,500,000 | 01/16/26 | 4 | 3.5 | 2,775 | |
0.36 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.65 | Single-Family Home | $4,475,000 | 04/10/26 | 4 | 3.5 | 3,666 | |
0.51 | Single-Family Home | $3,726,000 | 07/07/25 | 4 | 3 | 2,473 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 669 S Mashta Dr.
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
85 % Say people would walk alone at night
85 % 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.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Maureen Jauregui, Coldwell Banker Realty
Agent Phone: (305) 798-3124

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.
669 S Mashta Dr, Key Biscayne, FL 33149 is a 4 bedroom, 4 bathroom, 3,382 sqft single-family home built in 1960. This property is currently available for sale and was listed by MIAMI on Jun 8, 2026. The MLS # for this home is MLS# A12033340.

