















Property Details
| Sold Price | $4,750,000 |
|---|---|
| Last Asking Price | $4,950,000 |
| Price per SqFt | $1,404 |
| Maintenance fee | $0 Monthly |
| Property Taxes | $22,036 2025 |
| Interior Space | 3,382 SqFt |
| Beds/Baths | 3/3½ |
| Year Built | 1960 |
| Garage | 0 spaces |
| Pool | Yes |
| Lot Size | 0.23 acres |
| Closed Date | 2/4/2026 |
| MLS # | A11922444 |
Estimated Costs
An estimate of condo or HOA fees and property taxes
Fees and taxes based on MLS provided figures, and may not be accurate
From the listing
A beautifully reimagined home on one of Key Biscayne’s most desirable streets, South Mashta Drive. With its bold charcoal façade and distinctive presence, this residence stands out immediately while maintaining a warm island charm that makes it feel welcoming from the moment you arrive. Surrounded by mature trees and lush greenery, the setting offers both atmosphere and privacy.Inside, vaulted ceilings and expansive windows fill the space with natural light, creating a soft and inviting ambiance. The great room features a stone fireplace, wide-plank wood floors, and a natural flow to the terrace and pool, bringing effortless connection between indoor comfort and outdoor enjoyment. Every space reflects a carefully curated, cozy feel that enhances the character of the home.The renovated master bathroom offers calming finishes and a serene atmosphere. A private suite provides the perfect accommodation for guests or extended family. Set on a generous 10,000 sq ft lot and enhanced with impact windows, updated lighting, a newer roof, and thoughtful design details, this residence blends timeless appeal, warmth, and the unique island charm that defines Key Biscayne living.A rare opportunity to own a home that feels both distinctive and deeply inviting, in one of the most coveted locations on the island.
Listed by One Sotheby's International Realty
Sales History for This Home · 669 S Mashta Drive, Key Biscayne, FL 33149
| Sale ⇅ | Sold Price ⇅ | Closed Date ⇅ |
|---|---|---|
| A12033340 | $5,200,000 | 8/11/26 |
| A11729326 | $3,465,000 | 6/27/25 |

Listed by One Sotheby's International Realty. Mark Zilbert of ONE Sotheby's International Realty is a cooperating (transaction) broker and helps buyers find properties in Key Biscayne and throughout South Florida.
Ask Mark About This Listing
Questions, showings, offers. This goes straight to Mark Zilbert.
A question about the website itself, such as something broken, the Terms, or your account? Use the site-help form
This goes to the site team at [email protected], not into the real-estate pipeline.
Location
The curated data and calculated data for this property and its surrounding condo units and homes is based solely on data we have extracted from the MLS. There may be unpublished, private, quit claim and other property offerings and transfers that do not appear here, which may affect how a buyer or seller perceives property values. Always conduct proper due diligence when considering buying or selling property.
