How do I schedule a tour of 345 Harbor Lane, Key Biscayne, FL 33149?

Use the Tour button on this listing to request a showing of 345 Harbor Lane, Key Biscayne, FL 33149. Pick a day and time and choose an in-person or video-chat tour, and a Pure Equity agent will confirm your visit, often the same day.

Is 345 Harbor Lane, Key Biscayne, FL 33149 still available?

345 Harbor Lane, Key Biscayne, FL 33149 is currently listed as Sold, and has been on the market 13 days. Status updates directly from the MLS as homes go under contract, so ask us to confirm availability before you plan a visit.

How much is the monthly payment for 345 Harbor Lane, Key Biscayne, FL 33149?

With 20% down ($780,000) on the $3,900,000 list price and a 30-year fixed loan at an illustrative 6.875% rate, the estimated principal & interest for 345 Harbor Lane, Key Biscayne, FL 33149 is about $20,496/mo, before property taxes, insurance. Use the payment estimate on this page to adjust the down payment and rate.

How do I get pre-approved to buy 345 Harbor Lane, Key Biscayne, FL 33149?

Getting pre-approved shows sellers you're a serious buyer and clarifies your true budget before you offer on 345 Harbor Lane, Key Biscayne, FL 33149. Contact Pure Equity and we'll connect you with a trusted local lender to review your financing options, no obligation.

Can I negotiate the price of 345 Harbor Lane, Key Biscayne, FL 33149?

Often, yes. The right offer on 345 Harbor Lane, Key Biscayne, FL 33149 depends on how it's priced against comparable single family sales in Key Biscayne, how long it's been listed, and how motivated the seller is. Pure Equity will run the comps and help you craft a competitive, well-supported offer.

Sold

13 Days on Market

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$3,450,000

Sold · July 21, 2025

345 Harbor Lane

Key Biscayne, FL 33149

BISCAYNE KEY ESTATES

Explore the area: Key Biscayne homes for sale · Miami Dade County real estate

Sale Summary

What this home sold for

Sold price: $3,450,000
Vs. list price: 11.5% under
Days on market: 13
Price per sq ft: $1,148

This 4-bedroom single-family home in Biscayne Key Estates sold for $3,450,000 on July 21, 2025. That was 11.5% below its final list price of $3,900,000. It spent 13 days on the market. At $1,148 per square foot, it closed 17.8% below the $1,397 median of the 6 other single-family home sales in the recent closings shown below.

Bedrooms

Bathrooms

3,004

Living Sq Ft

1951

Year Built

Listing Snapshot

Sold Price: $3,450,000
Sold On: July 21, 2025
Days on Site: 13 Days
Bedrooms: 4
Total Baths: 3
Full Baths: 3
Partial Baths: 0
Living Area: 3,004 sqft
Total Sq Ft: 3,464 sqft
Lot Size: 0.29 Acres
Year Built: 1951
Property Type: Single Family
MLS #: A11815652
Property Tax: $30,745 (2024)
Subdivision: BISCAYNE KEY ESTATES
County: Miami Dade
Status: Sold
Special Conditions: Listed As Is

About This Property

ENJOY FAMILY-STYLE LIVING IN THIS ONE-STORY SPLIT-PLAN 4 BEDROOMS, THREE BATHS HOME SITUATED ON A UNIQUELY OVERSIZED 12,600 SQ.FT.(0.29 AC.) IRREGULAR LOT. OVER 3,000 SQ.FT. OF LIVING AREA, FEATURING A FORMAL DINING ROOM AND SPACIOUS FLORIDA ROOM OVERLOOKING THE BEAUTIFUL POOL, SPA AND GAZEBO SURROUNDED BY LUSH LANDSCAPING FOR UTMOST PRIVACY. ATTACHED TWO-CAR GARAGE AND SEPARATE LAUNDRY/UTILITY ROOM. PARTIAL IMPACT WINDOWS. QUIET STREET OFF HARBOR DRIVE CLOSE TO ALL KEY BISCAYNE AMENITIES. YEAR-ROUND RESORT LIVING IN KEY BISCAYNE: PARADISE FOUND! EASY TO SHOW WITH 24-HR NOTICE.

MLS media link

General Features

Property Type: Single Family
Status: Sold
Year Built: 1951
Property Condition: Resale
Number of Stories: 1
Levels: One
Garage Spaces: 2
Parking: Driveway / Guest
Direction Faces: West
Lot Size (Acres): 0.29
Living Sq Ft: 3,004
Total Sq Ft: 3,464
Sewer: Public Sewer
Water Source: Public
Zoning: 0100

Interior Features

Appliances: Dryer / Dishwasher / Electric Range / Electric Water Heater / Disposal / Gas Range / Microwave / Oven / Refrigerator / Washer
Cooling: Central Air
Heating: Central
Flooring: Marble / Other
Interior Features: Built In Features / Bedroom On Main Level / Entrance Foyer / Bar
Laundry: In Garage / Laundry Tub

Exterior Features

Construction: Block
Roof: Other
Exterior Features: Outdoor Living Area
Architectural Style: Other
Private Pool: Yes
Pool Features: In Ground
Patio & Porch: Patio
Lot Features: Quarter To Half Acre Lot
View: Garden

Community & HOA

Association Amenities: Beach Rights
Financing Terms: Cash / Conventional
MLS Area: 2520

About the Community

Biscayne Key Estates

View Community Details →

Biscayne Key Estates is a luxury community in Key Biscayne, Miami-Dade County, Florida. Properties are priced from $2,900,000 to $11,300,000. Pure Equity lists homes in Biscayne Key Estates and represents buyers. Commission is negotiable, and what we are paid is agreed with you in writing before you commit to anything.

Homes for Sale: 8
Under Contract: 1
Median List Price: $5,489,000
Median $/Sq Ft: $1,532
Avg Days on Market: 139

View all 8 homes for sale in Biscayne Key Estates →

Frequently Asked Questions

How do I schedule a tour of 345 Harbor Lane, Key Biscayne, FL 33149?: Use the Tour button on this listing to request a showing of 345 Harbor Lane, Key Biscayne, FL 33149. Pick a day and time and choose an in-person or video-chat tour, and a Pure Equity agent will confirm your visit, often the same day.
Is 345 Harbor Lane, Key Biscayne, FL 33149 still available?: 345 Harbor Lane, Key Biscayne, FL 33149 is currently listed as Sold, and has been on the market 13 days. Status updates directly from the MLS as homes go under contract, so ask us to confirm availability before you plan a visit.
How much is the monthly payment for 345 Harbor Lane, Key Biscayne, FL 33149?: With 20% down ($780,000) on the $3,900,000 list price and a 30-year fixed loan at an illustrative 6.875% rate, the estimated principal & interest for 345 Harbor Lane, Key Biscayne, FL 33149 is about $20,496/mo, before property taxes, insurance. Use the payment estimate on this page to adjust the down payment and rate.
How do I get pre-approved to buy 345 Harbor Lane, Key Biscayne, FL 33149?: Getting pre-approved shows sellers you're a serious buyer and clarifies your true budget before you offer on 345 Harbor Lane, Key Biscayne, FL 33149. Contact Pure Equity and we'll connect you with a trusted local lender to review your financing options, no obligation.
Can I negotiate the price of 345 Harbor Lane, Key Biscayne, FL 33149?: Often, yes. The right offer on 345 Harbor Lane, Key Biscayne, FL 33149 depends on how it's priced against comparable single family sales in Key Biscayne, how long it's been listed, and how motivated the seller is. Pure Equity will run the comps and help you craft a competitive, well-supported offer.

Listing courtesy of BHHS EWM Realty

Listing information is provided by BeachesMLS, Inc.and is deemed reliable but not guaranteed accurate by the MLS or Pure Equity. Information is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. © 2026 BeachesMLS, Inc. Last updated August 30, 2026.

$3,450,000

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Listed by Sylvia G Iriondo, BHHS EWM Realty

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Recently sold homes in Biscayne Key Estates

These are the last 6 recorded closings in Biscayne Key Estates, with the price each home actually sold for rather than what it was listed at. They closed at a median of $1,425 per square foot. The most recent closed on September 28, 2026. Closed sales are what an appraiser and a buyer's agent will look at, so they are the starting point for pricing a home here.