Premier Brokers International
685 Harbor Lane, Key Biscayne, FL 33149
ActiveMLS listing sourceMIAMI REALTORS® MLS
ActiveMLS® A11997896
$6,950,000

685 Harbor Lane, Key Biscayne, FL 33149

Beds
5
Baths
6
Sqft
5,421
Est. payment$42,898/mo
Home type
Single Family Residence
Year built
2001
Lot size
9,148 sqft
Price / sqft
$1,282
HOA
$0/mo
Community
BISCAYNE KEY ESTATES

Property 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 activity

Days on market
190
Listed
Apr 16, 2026
MLS listing updated
Oct 14, 2026
Feed last checked
8 minutes ago

Listed by Marisela C Gonzalez Servat · Avanti Way Realty LLC

Map

Map location is based on MLS-supplied coordinates. Verify the location before relying on it.

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms
5
Bathrooms
6
Bathrooms (decimal)
5.5
Full bathrooms
5
Half bathrooms
1

Rooms & features

Rooms
2
Interior features
Bar, Closet Cabinetry, Entrance Foyer, Kitchen Island, Storage, Walk-In Closet(s)
Flooring
Marble, Tile, Wood
Appliances
Electric Water Heater, Dishwasher, Disposal, Dryer, Gas Range, Ice Maker, Refrigerator
Window features
Plantation Shutters

Heating & cooling

Heating
Central
Cooling
Central Air
Property

Parking

Garage spaces
1
Garage
Yes
Covered spaces
1
Parking features
Attached, Attached Garage, Driveway, Garage
Attached garage
Yes

Exterior

Stories
2
Building area
6,971 sqft
Entry level
1
Patio & porch
Porch - Open, Porch, Patio
Exterior features
Balcony, Lighting
Pool
Yes
Pool features
In Ground
View
Other
Waterfront property
No

Lot

Lot size
9,148 sqft
Lot size (acres)
0.21 acres
Zoning
0100
Construction

Type & style

Home type
Single Family Residence
Year built
2001
New construction
No

Materials

Roof
Aluminum
Foundation
Piling
Property condition
Resale
Levels
Two
Faces
Northwest
Utilities & green energy

Utilities

Sewer
Public Sewer
Water
Public
Community & HOA

Community

Subdivision
BISCAYNE KEY ESTATES
MLS area
2520
55+ community
No

Association

Has association
No
Estimated monthly dues
$0
Amenities
Beach Club Available
Lease details

Not reported by the listing source.

Location

Area details

City
Key Biscayne
County
Miami-Dade
ZIP code
33149
Manufactured home details

Not reported by the listing source.

Financial & listing details

Listing

MLS number
A11997896
Possession
Negotiable
Original list price
$6,950,000
Parcel number
2452050011330
Annual property tax
$40,335
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
Additional MLS details

Reported by the listing source

Association Amenities
Beach Club Available
Association
No
Bathrooms Total Decimal
5.5
Bathrooms Total Integer
6
Building Area Total
6971
County Or Parish
Miami-Dade
Days On Market
190
Direction Faces
Northwest
Elementary School
Key Biscayne K-8
Foundation Details
Piling
High School
Coral Gables
List Price
6950000
Listing Contract Date
2026-04-16
Living Area
5421
Lot Size Acres
0.21
Lot Size Area
9000
MLSArea Major
2520
Middle Or Junior School
Ponce De Leon
Mls Status
Active
On Market Date
2026-10-14
Patio And Porch Features
Porch - Open, Porch, Patio
Photos Count
46
Postal Code
33149
Property Sub Type
Single Family Residence
Property Type
Residential
Rooms Total
2
Senior Community
No
Standard Status
Active
State Or Province
FL
Status Change Timestamp
2026-10-14T16:09:38Z
Stories Total
2
Subdivision Name
BISCAYNE KEY ESTATES
Water Source
Public
Tax Annual Amount
40335
Bathrooms Full
5
Pool Private
Yes
Bedrooms Total
5
Waterfront
No
Bathrooms Half
1

Market value

Automated estimate—No licensed valuation source connected
Estimated sales range—Ask Karim for a local market analysis
Estimated rent—No licensed rental valuation source connected

Price history

DateEventPrice
Apr 16, 2026ListedMIAMI REALTORS® MLS$6,950,000$1,282/sqft

Public tax history

YearProperty taxesAssessment
2025$40,335—

Payment calculator

Estimated monthly payment$42,898/moIllustrative estimate, not a loan offer.
Principal & interest
$36,062
Property taxes
$3,361
Insurance
$3,475
Association dues
$0

Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.

Neighborhood

Area

BISCAYNE KEY ESTATES

Key Biscayne · Miami-Dade County · 33149

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Key Biscayne K-8Elementary
—
Ponce De LeonMiddle
—
Coral GablesHigh
—
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

Nearby homes

12 homes

Similar homes

12 homes
MLS listing source

MIAMI REALTORS® MLS · Listing courtesy of Avanti Way Realty LLC. 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 be used only to identify prospective properties they may be interested in purchasing or leasing. Terms of use · Equal Housing Opportunity.