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MASHTA ISLAND · Key Biscayne, FL 33149 → · MLS A12033340
Listed by Coldwell Banker Realty
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.
The propertyAs the MLS records it
ASK JULIAN
669 S Mashta Dr, Key Biscayne, FL 33149 is no longer on the market. Write here, call or send a WhatsApp: Julian Acosta, real estate advisor with Compass, answers within one business day.
No lists, no obligation.
| Year | Median price per SF | Closed sales |
|---|---|---|
| 2020 | $803 | 54 |
| 2021 | $964 | 109 |
| 2022 | $1,220 | 60 |
| 2023 | $1,249 | 30 |
| 2024 | $1,321 |
Homes of the same kind on the market nearby, the nearest in price first.
LIVE · MLS · AS OF NOV 1, 2026
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1 / 39The information on this page is supplied by the Southeast Florida Multiple Listing Service of the MIAMI Association of REALTORS®. It is deemed reliable but is not guaranteed accurate by the MLS, and it may have changed since the date above. It is provided for your personal, non-commercial use and may not be used for any purpose other than to identify properties you may be interested in purchasing. This listing is held by Coldwell Banker Realty. Julian Acosta is a real estate advisor with Compass.
A listing shown here may be held by a brokerage other than Compass. To report an error in this listing's information, write to julian.acosta@compass.com.
SOLD · FEB 4, 2026
SOLD · APR 20, 2026
SOLD · JAN 16, 2026
SOLD · MAR 27, 2026
SOLD · OCT 26, 2026
SOLD · SEP 24, 2026| 48 |
| 2025 | $1,404 | 38 |
|---|
| 2026 to date | $1,498 | 37 |
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These figures are the market's closed sales as the MLS records them: this building's for a unit, a gated community's for a home inside one, and otherwise the sales of this kind of property in the home's market — for a home at $2,000,000 or more, only that market's sales from that price up. Which of these it is, is said above the figures. No snapshot is drawn from fewer than 5 sales of the last twelve months, and a median price per SF is stated only from 3 sales that state a living area. They are not sales by Julian Acosta, they are not an appraisal, and they say nothing of this home's price.
These are the public schools whose attendance zone holds this listing's location, as Miami-Dade County publishes the zones. A zone is not a guarantee of enrollment, the district can change it, and a listing's point on the map can sit a few meters from its lot: confirm the school with Miami-Dade County Public Schools before you rely on it. Distances are straight lines. The page states no rating of any school.
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