S Mashta Drive, Key Biscayne, FL
Everything we know about S Mashta Drive in Key Biscayne: what is for sale, what has sold, what the homes are like and which communities the street runs through — from the MLS record and county parcel data, refreshed nightly.
27 homes sit on S Mashta Drive in Key Biscayne, FL (ZIP 33149), built 1960–2020, a typical 5,109 sq ft with 5 bedrooms. 3 are for sale right now from $6,350,000 to $19,900,000. Homes that sold since 2023 went for a median $13,087,500.
For sale on S Mashta Drive now
The homes on S Mashta Drive
27 single-family. Built by decade: 1960s 12, 1970s 1, 1980s 3, 1990s 3, 2000s 4, 2010s 3, 2020s 1.
Last recorded sales (parcel record)
| Address | Sold | Date | Built | Sq ft |
|---|---|---|---|---|
| 669 S Mashta Dr | $5,200,000 | 2026-08-11 | 1960 | 3,382 |
| 551 S Mashta Drive | $4,700,000 | 2025-07-10 | 1961 | 3,245 |
| 510 S Mashta Drive | $18,921,250 | 2025-07-08 | 1981 | 5,226 |
| 660 S Mashta Drive | $13,800,000 | 2025-03-28 | 1965 | 5,043 |
| 640 S Mashta Dr | $12,375,000 | 2024-10-16 | 1968 | 3,620 |
| 520 S Mashta Dr | $16,500,000 | 2024-02-26 | 1961 | 3,085 |
| 601 S Mashta Drive | $4,225,000 | 2022-12-01 | 1968 | 3,868 |
| 531 S Mashta Drive | $7,000,000 | 2022-09-28 | 2012 | 4,410 |
| 721 S Mashta Drive | $3,700,000 | 2022-08-12 | 1960 | 2,457 |
| 750 S Mashta Drive | $10,900,000 | 2021-12-23 | 1994 | 5,967 |
| 610 S Mashta Drive | $14,600,000 | 2021-08-13 | 1969 | 6,490 |
| 641 S Mashta Drive | $6,480,000 | 2021-06-18 | 2020 | 5,109 |
| 571 S Mashta Dr | $2,945,000 | 2021-04-28 | 1964 | 2,761 |
| 500 S Mashta Drive | $17,400,000 | 2021-04-13 | 2014 | 10,820 |
| 720 S Mashta Drive | $7,499,000 | 2020-04-06 | 1964 | 6,395 |
| 775 S Mashta Drive | $47,000,000 | 2015-12-23 | 1991 | 11,588 |
| 651 S Mashta Drive | $2,500,000 | 2015-12-11 | 1972 | 2,754 |
| 701 S Mashta Drive | $3,000,000 | 2015-10-30 | 1965 | 2,939 |
| 481 S Mashta Drive | $7,633,000 | 2015-04-20 | 1989 | 7,048 |
| 611 S Mashta Drive | $3,350,000 | 2014-02-21 | 2004 | 5,182 |
Communities along S Mashta Drive
- Mashta Island · 9 homes on the street
- Mashta Island A · 7 homes on the street
- Mashta Island · 3 homes on the street
How to read this
Home counts, build years, sizes and last sales come from the county parcel record joined to MLS history; listings and 12-month closings from the live MLS feeds as of October 14, 2026. Listings appear courtesy of the listing brokerage under IDX rules; information deemed reliable but not guaranteed. See also all 85 homes for sale in Key Biscayne, homes for sale in 33149.