How much is 669 S Mashta Drive?

669 S Mashta Drive is listed at $5,799,000, which is about $1,715 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.

What are the property taxes on 669 S Mashta Drive?

The listing reports annual property taxes of $22,013 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.

When was 669 S Mashta Drive built?

669 S Mashta Drive was built in 1960 and the listing describes its condition as . Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.

How long has 669 S Mashta Drive been on the market?

669 S Mashta Drive has been listed for 38 days. Days on market and price changes are the first signals of how much room there is to negotiate.

Which schools serve 669 S Mashta Drive?

The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.

How do I see 669 S Mashta Drive?

Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

669 S Mashta Drive, Key Biscayne, FL 33149

$5,799,000 · Closed

4 beds
4 baths
3,382 sq ft
Single Family Residence
Built 1960
Lot 10,018.8 sq ft
MLS# A12033340
Mashta Island

Photo 1 at 669 S Mashta Drive, Key Biscayne

Photo 2 at 669 S Mashta Drive, Key Biscayne

Photo 3 at 669 S Mashta Drive, Key Biscayne

Photo 4 at 669 S Mashta Drive, Key Biscayne

Photo 5 at 669 S Mashta Drive, Key Biscayne

Photo 6 at 669 S Mashta Drive, Key Biscayne

Photo 7 at 669 S Mashta Drive, Key Biscayne

Photo 8 at 669 S Mashta Drive, Key Biscayne

About this home

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.

Features

High Ceilings
Bedroom Layout - Split
Roman Tub
Outdoor Shower
Above Ground

Schools

Elementary: Key Biscayne K-8
Middle: Ponce De Leon
High: Coral Gables

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Coldwell Banker Realty · Listing agent: Maureen Jauregui

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 669 S Mashta Drive.

Questions About 669 S Mashta Drive

How much is 669 S Mashta Drive?: 669 S Mashta Drive is listed at $5,799,000, which is about $1,715 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.
What are the property taxes on 669 S Mashta Drive?: The listing reports annual property taxes of $22,013 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.
When was 669 S Mashta Drive built?: 669 S Mashta Drive was built in 1960 and the listing describes its condition as . Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.
How long has 669 S Mashta Drive been on the market?: 669 S Mashta Drive has been listed for 38 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Which schools serve 669 S Mashta Drive?: The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.
How do I see 669 S Mashta Drive?: Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

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Recently Sold Nearby

346 Gulf Road, Key Biscayne, FL 33149 · Sold $4,700,000 · 5 bd · 6 ba · 3,285 sq ft

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Nearby Cities

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Nearby ZIP Codes

A comparable home, 346 Gulf Road, Key Biscayne, FL 33149, sold for $4,700,000 in July 2026. Key Biscayne neighborhoods include Ocean Club and Biscayne Key Estates. Nearby ZIP codes include 33133 and 33131. This property also neighbors Coconut Grove, Brickell, and Miami. Compare it with the Key Biscayne housing market report.