How much is 685 Harbor Lane?

685 Harbor Lane is listed at $6,950,000, which is about $1,282 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 685 Harbor Lane?

The listing reports annual property taxes of $40,335 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 685 Harbor Lane built?

685 Harbor Lane was built in 2001 and the listing describes its condition as resale. 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 685 Harbor Lane been on the market?

685 Harbor Lane has been listed for 160 days. Days on market and price changes are the first signals of how much room there is to negotiate.

Which schools serve 685 Harbor Lane?

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 685 Harbor Lane?

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.

685 Harbor Lane, Key Biscayne, FL 33149

$6,950,000 · Active

5 beds
6 baths
5,421 sq ft
Single Family Residence
Built 2001
Lot 9,147.6 sq ft
MLS# A11997896
Biscayne Key Estates

Photo 1 at 685 Harbor Lane, Key Biscayne

Photo 2 at 685 Harbor Lane, Key Biscayne

Photo 3 at 685 Harbor Lane, Key Biscayne

Photo 4 at 685 Harbor Lane, Key Biscayne

Photo 5 at 685 Harbor Lane, Key Biscayne

Photo 6 at 685 Harbor Lane, Key Biscayne

Photo 7 at 685 Harbor Lane, Key Biscayne

Photo 8 at 685 Harbor Lane, Key Biscayne

About this home

Set on one of the largest lots in Key Biscayne, a rare 12,200 sqft parcel, this colonial-style residence, known as Villa Rosa, was designed by renowned architect Cesar Molina and sits on a quiet, low-traffic street in a well-established, family-friendly neighborhood.The generous lot allows for a spacious backyard with pool and abundant green space, ideal for outdoor living and entertaining. Double balconies and covered terraces create a seamless indoor-outdoor flow throughout the home.This 5-bedroom residence offers bright interiors and a chefs kitchen with island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite includes a private terrace, oversized walk-in closet with safe, and dual baths with sauna. Also includes maids quarters and hurricane code construction.Minutes from the beach, parks, and top schools - a rare opportunity to own a well-designed home with an exceptional lot on one of Key Biscayne's most desirable streets.

Features

Bar
Entrance Foyer
Kitchen Island
Walk-In Closet(s)
Closet Cabinetry
Storage
Lighting
Balcony
In Ground

Schools

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

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Avanti Way Realty LLC · Listing agent: Marisela C Gonzalez Servat

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 685 Harbor Lane.

Questions About 685 Harbor Lane

How much is 685 Harbor Lane?: 685 Harbor Lane is listed at $6,950,000, which is about $1,282 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 685 Harbor Lane?: The listing reports annual property taxes of $40,335 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 685 Harbor Lane built?: 685 Harbor Lane was built in 2001 and the listing describes its condition as resale. 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 685 Harbor Lane been on the market?: 685 Harbor Lane has been listed for 160 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Which schools serve 685 Harbor Lane?: 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 685 Harbor Lane?: 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.

Explore

Recently Sold Nearby

669 S Mashta Drive, Key Biscayne, FL 33149 · Sold $5,200,000 · 4 bd · 4 ba · 3,382 sq ft
346 Gulf Road, Key Biscayne, FL 33149 · Sold $4,700,000 · 5 bd · 6 ba · 3,285 sq ft

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A comparable home, 669 S Mashta Drive, Key Biscayne, FL 33149, sold for $5,200,000 in August 2026. Other Key Biscayne neighborhoods include Ocean Club and Tropical Isle Homes. Nearby ZIP codes include 33131 and 33129. This property also neighbors Brickell, Coconut Grove, and Miami. Compare it with the Key Biscayne housing market report.