What did 669 S Mashta Drive sell for?

669 S Mashta Drive sold for $5,200,000 on Aug 11, 2026, about 89.7% of its last asking price of $5,799,000 and about $1,538 per square foot. Recent sales like this one are what buyers and sellers nearby price against.

What are the property taxes on 669 S Mashta Drive?

The listing reported annual property taxes of $22,013 for 2025. Taxes are reassessed at the sale price after a purchase, so the new owner's bill will differ from that figure.

When was 669 S Mashta Drive built?

669 S Mashta Drive was built in 1960. 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 was 669 S Mashta Drive on the market?

669 S Mashta Drive was on the market for 38 days before it sold.

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.

Is 669 S Mashta Drive still for sale?

No. 669 S Mashta Drive sold on Aug 11, 2026. BreakThru Realty can show you similar homes for sale nearby, or tell you what a home like yours would sell for today; call or text and a licensed agent will follow up.

669 S Mashta Drive, Key Biscayne, FL 33149

Sold $5,200,000 · Aug 11, 2026

Last asking price $5,799,000 · 89.7% of asking · 38 days on market

Similar Homes for Sale Nearby

501 Bay Lane, Key Biscayne, FL 33149 · $5,990,000 · 5 bd · 4.5 ba · 4,759 sq ft
755 Curtiswood Drive, Key Biscayne, FL 33149 · $5,600,000 · 5 bd · 5 ba · 3,197 sq ft
690 Warren Lane, Key Biscayne, FL 33149 · $5,378,000 · 4 bd · 3.5 ba · 3,549 sq ft
571 S Mashta Drive, Key Biscayne, FL 33149 · $6,350,000 · 4 bd · 3 ba · 2,761 sq ft

4 beds
3.5 baths
3,382 sq ft
Single Family Residence
Built 1960
Lot 10,018.8 sq ft
Miami-Dade County
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 · michaelj.suarez@cbrealty.com · Listing agent: Maureen Jauregui

All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than BreakThru Realty carry the name of the listing broker.

Thinking of Selling Nearby?

669 S Mashta Drive sold on Aug 11, 2026. Your buyer may already be looking. BreakThru Realty works with hundreds of prequalified buyers searching for properties. A broker compares your home in Key Biscayne with this sale and the closings nearest it, checks it against the buyers on file and calls you with your selling options. Find Out If We Have Your Buyer, or see homes for sale in Key Biscayne. Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com.

Questions About 669 S Mashta Drive

What did 669 S Mashta Drive sell for?: 669 S Mashta Drive sold for $5,200,000 on Aug 11, 2026, about 89.7% of its last asking price of $5,799,000 and about $1,538 per square foot. Recent sales like this one are what buyers and sellers nearby price against.
What are the property taxes on 669 S Mashta Drive?: The listing reported annual property taxes of $22,013 for 2025. Taxes are reassessed at the sale price after a purchase, so the new owner's bill will differ from that figure.
When was 669 S Mashta Drive built?: 669 S Mashta Drive was built in 1960. 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 was 669 S Mashta Drive on the market?: 669 S Mashta Drive was on the market for 38 days before it sold.
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.
Is 669 S Mashta Drive still for sale?: No. 669 S Mashta Drive sold on Aug 11, 2026. BreakThru Realty can show you similar homes for sale nearby, or tell you what a home like yours would sell for today; call or text and a licensed agent will follow up.

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760 Woodcrest Road, Key Biscayne, FL 33149 · Sold $5,790,000 · 5 bd · 5.5 ba · 4,003 sq ft
445 Ridgewood Road, Key Biscayne, FL 33149 · Sold $6,400,000 · 5 bd · 5.5 ba · 3,688 sq ft
164 W Mashta Drive, Key Biscayne, FL 33149 · Sold $4,920,624 · 5 bd · 5 ba · 3,595 sq ft
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Nearby Cities

Key Biscayne Neighborhoods

Nearby ZIP Codes

A comparable home, 760 Woodcrest Road, Key Biscayne, FL 33149, sold for $5,790,000 in October 2026. Key Biscayne neighborhoods include Key Colony and Commodore Club. 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.