685 Harbor Lane, Key Biscayne, FL 33149 (MLS# A11997896)

685 Harbor Lane, Key Biscayne, FL 33149

$6,950,000
Property Type: Residential Bedrooms: 5 Baths: 6 Square Footage: 6,971 Status: Active
Current Price: $6,950,000 List Date: 4/16/2026 Last Modified: 9/08/2026

Overview

Description

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.

Listing Details MLS# A11997896

General Property Information

Property Sub Type
Single Family Residence
Bedrooms Total
5
Bathrooms Total
6
Bathrooms Full
5
Bathrooms Half
Yes
Building Area Main
6971
Living Area Main
5421
Adjusted Area Main
5644
Year Built
2001
Garage YN
Yes
Attached Garage YN
Yes
Garage Spaces
Yes
Covered Spaces
Yes
Lot Size Area
9000
Lot Size Acres
0.21
Senior Community YN
No
Outdoor Living Spaces YN
Yes
Stories Total
2
Direction Faces
Northwest
Pool Private YN
Yes

Property Features

Exterior Features: Lighting Flooring: Marble; Tile; Wood Foundation Details: Piling Leasing Permitted Details: Okay To Lease Parking Features: Driveway; Attached; Attached Garage; Garage Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Gas Range; Ice Maker; Refrigerator Water Heater Details: Electric Water Heater Cooling: Central Air Heating: Central Interior Features: Bar; Closet Cabinetry; Entrance Foyer; Kitchen Island; Storage; Walk-In Closet(s) Levels: Two Listing Terms: Cash; Conventional Membership: Other Membership Available Pool Features: In Ground Possession: Negotiable Roof: Aluminum Sewer: Public Sewer Special Information: Sold As-Is Sprinkler Description: Auto Sprinkler View: Other Water Source: Public Window Features: Plantation Shutters Showing Requirements: Call Listing Agent; Showing Service Outdoor Living Spaces: Balcony; Patio; Porch Balcony Details: Balcony - Open Porch Details: Porch - Open Room Types: Family Room; Great Room Acreage Description: 1/4 To Less Than 1/2 Acre Lot

Contract Information

Comp Sale YN
No
Original List Price
6950000
Occupant Type
Call Listing Agent

Location and Legal

Country
United States
County Or Parish
Miami-Dade
County Parish Name
Miami-Dade
Street Number
685
Street Name
Harbor
Street Suffix
Lane
City Name
Key Biscayne
Municipal Code
24
State Or Province
FL
Postal Code
33149
Postal Code +4
1713
Postal Zip
33149
Subdivision Name
BISCAYNE KEY ESTATES
Area
2520
Elementary School
Key Biscayne K-8
Middle Or Junior School
Ponce De Leon
High School
Coral Gables
Parcel Number
2452050011330
Subdivision Number
Yes
Zoning
0100
Flood Zone
AE

Financial Information

Membership Fee Required YN
No
Tax Annual Amount
40335
Tax Year
2025
Tax Legal Description
5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 23 BLK 9 LOT SIZE 9000 SQ FT OR 14097-1199 0489 1

Status Change Information

Major Change Timestamp
2026-04-16T04:00:00Z
Major Change Type
New Listing
Status Change Date
2026-04-16

More Information

Entry Information

Entry Level
Yes

Leasing Permitted Details

Leasing Permitted YN
Yes

Pool Size Details

Pool Size (WxL)
30x10

Storm Protection

Impact Glass
Partial

Price Calculations

Current Price To SqFt
1282.05

Section Details

Parcel Number MLX
1330

Originating Details

Originating System Key
452228383
Originating System ID
M00000151

Room Information

Room Name
Family Room
Great Room
IDX
Listing Office: Avanti Way Realty LLC
Last Updated: September - 08 - 2026
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