$2,899,000
OPEN SAT 11AM - 1PM

425 Harbour Dr Marathon, FL 33050

Estimated payment $17,172/month

Total Views 33,448
2 Beds
3 Baths
1,247 Sq Ft
$2,325 Price per Sq Ft

Highlights

  • Property Fronts a Bay or Harbor
  • Open Water Access
  • Lanai
  • Coral Shores High School Rated A
  • RV Access or Parking
  • 1-minute walk to Curry Hammock State Park

About This Home

Life on the water begins the moment you arrive at this beautifully positioned open water home on prestigious Harbour Drive in Duck Key. Surrounded by swaying palms and tropical landscaping, this classic 2 Bedroom 3 Bathroom Florida Keys coastal cottage sits on an oversized 11,250 sq. ft. lot highlighted by a bright open-concept layout with panoramic views of Toms Harbor. Built with CBS construction, impact windows, and a metal roof, the property provides both durability and low-maintenance island living. For boaters, the property features 75 feet of concrete seawall and a dock with quick access to both the Atlantic Ocean and Gulf for world-class fishing, diving, and boating. The tropical backyard is designed for true Keys living, featuring a waterside tiki hut, shaded seating areas, and plenty of room for a future pool with a permitted convenience bathroom downstairs. An outdoor elevator, garage, and beautifully landscaped yard add comfort and curb appeal. Residents of Duck Key enjoy optional membership at Club Duck Key with access to a heated and chilled pool, pickleball and tennis courts, bocce ball, basketball, and a vibrant social calendar. Located just minutes from Marathon Jet Center, marinas, restaurants, and shopping, this Duck Key home offers the perfect balance of privacy, boating convenience, and island lifestyle.

Listing Agent

Lisa Ferringo

Coldwell Banker Schmitt Real Estate Co License #605677 Listed on: 03/12/2026

Coldwell Banker Schmitt Real Estate Co

Open House Schedule

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $18,534

Year Built

  • Built in 1977

Lot Details

  • 11,250 Sq Ft Lot
  • Property Fronts a Bay or Harbor
  • Property is zoned ISM - Improved Sub Masonry

Home Design

  • Metal Roof
  • Concrete Block And Stucco Construction

Interior Spaces

  • 1,247 Sq Ft Home
  • Elevator
  • Drapes & Rods
  • Bay Views
  • Impact Glass

Kitchen

  • Oven
  • Range
  • Microwave
  • Dishwasher
  • Stainless Steel Appliances

Bedrooms and Bathrooms

  • 2 Bedrooms
  • 3 Full Bathrooms

Laundry

  • Dryer
  • Washer

Parking

  • Garage
  • Open Parking
  • RV Access or Parking

Outdoor Features

  • Open Water Access
  • Seawall
  • Dock made with Composite Material
  • Lanai
  • Tiki or Chickee Hut

Additional Features

  • Trailer Storage
  • Cable TV Available

Community Details

  • Harbour Island Subdivision

Listing and Financial Details

  • Assessor Parcel Number 00376951-002800

Home Details

Home Type

Single Family

Est. Annual Taxes

$18,534

Year Built

Built in 1977

Lot Details

0.26 Acres

Listing Details

  • Property Type: Residential
  • Dockage Dock: Composite
  • Dockage Seawall: Concrete
  • Year Built: 1977
  • Building Style Stilt Column Height: Medium - 5Ft - 9Ft
  • Building Style Above Flood: Yes
  • Property Sub Type: Single Family Residence
  • Co List Office Mls Id: kwa.office10985
  • Co List Office Phone: 305-809-1400
  • Subdivision Name: Harbour Island (61.0)
  • Special Features: OpenHouse

Interior Features

  • Interior Amenities: Elevator
  • Appliances: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Stainless Steel Appliance(s)
  • Full Bathrooms: 3
  • Total Bedrooms: 2

Exterior Features

  • Waterfront: Yes
  • Exterior Features: Chickee Hut, Lanai
  • Construction Type: CBS
  • Waterfront: Bay Front, Open Water
  • Roof: Metal Roof

Utilities

  • Utilities: Cable Available
  • Utilities: FKAA, Municipal Sewer, Buyer to Verify, Cable Available

Condo/Co-op/Association

  • Pets Allowed: Yes

Lot Info

  • Parcel Number: 00376951-002800
  • Lot Size Sq Ft: 11250.0

Rental Info

  • Furnished: Unfurnished

Tax Info

  • Tax Year: 2025
  • Tax Annual Amount: 18533.92

Multi Family

  • Number Of Units Total: 1

Map

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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $18,534 $2,510,059 $2,133,341 $376,718
2024 $17,720 $2,514,269 $2,140,428 $373,841
2023 $17,720 $2,786,967 $2,412,116 $374,851
2022 $14,336 $1,868,871 $1,488,378 $380,493
2021 $12,477 $1,233,609 $890,666 $342,943
2020 $11,357 $1,068,724 $718,203 $350,521
2019 $11,785 $1,108,299 $692,216 $416,083
2018 $11,568 $1,185,922 $765,453 $420,469
2017 $10,674 $1,131,601 $0 $0
2016 $9,928 $997,000 $0 $0
2015 $9,878 $1,042,534 $0 $0
2014 $8,906 $807,460 $0 $0
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
03/12/2026 03/12/26 For Sale $2,899,000 -- $2,325 / Sq Ft
Source: Key West Association of REALTORS®

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Type Sale Price Title Company
Quit Claim Deed -- Attorney
Warranty Deed $1,200,000 Attorney
Warranty Deed $300,000 --
Deed $87,000 --
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Loan Amount Loan Type
Open $900,000 Unknown
Source: Public Records

About the Listing Agent

Lisa Ferringo

Coldwell Banker Schmitt Real Estate Co

(833) 519-1887

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Lisa Ferringo is a top-producing luxury real estate professional specializing in Florida Keys real estate, including waterfront estates, luxury homes, and investment properties from Key Largo to Key West. She launched her career in 1989 with a luxury condominium developer in Miami, Florida, and by 1995 was promoted to Broker of Mystic Point Realty in Aventura, establishing an early reputation for leadership and high-performance sales. In 1999, she joined Sotheby’s International Realty in Miami

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Source: Key West Association of REALTORS®

MLS Number: 619033

Key West Association of REALTORS®

APN: 00376951-002800

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