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$1,499,000 Just Listed

  • For Sale
  • Active
  • Duplex
  • 4 Beds
  • 4 Full Baths
  • 1,924 Sq. Ft.
  • Updated 5 hours ago
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CANALFRONT DUPLEX WITH EXCELLENT BOATING & INVESTMENT POTENTIAL! Discover a fantastic opportunity to own this canalfront duplex in the heart of Marathon, offering excellent boating access and the flexibility of weekly vacation rentals! Situated on a 7,500 sq. ft. lot along an approximately 50' wide, crystal-clear canal, this property features two spacious 2-bedroom, 2-bath residences totaling 1,924 sq. ft. Each unit offers an inviting open floor plan, laundry, a private screened porch overlooking the water perfect for enjoying the tropical breezes and downstairs storage. Boating enthusiasts will appreciate the concrete dockage, with room to accommodate boats up to 36' on each side. Solid CBS construction with impact windows and standing seam metal roof. With weekly rentals permitted, this property presents outstanding income-producing potential, whether you choose to rent both residences or enjoy one while generating income from the other. Conveniently located behind the Marathon Airport with the public boat ramp close by and just minutes from dining, shopping, beautiful Sombrero Beach, and all the attractions that make Marathon a premier Florida Keys destination. An exceptional opportunity to enjoy the Keys lifestyle while capitalizing on the area's strong vacation rental appeal!

Full Property Details for 9104 Aviation Blvd

General

  • Price: $1,499,000
  • Taxes: $9,513 (2025)
  • Status: Active
  • Type: Duplex
  • Source: 927
  • MLS ID: 621663
  • Updated: Today (10/16/2026)
  • Added to Site: Today

Interior

  • Interior Features: Utility Room, Built-in Cabinets, Drapes/Blinds Incl, Smoke Alarms, Storage
  • Appliances: Dishwasher, Dryer, Microwave, Oven, Refrigerator, Washer
  • Flooring: Tile

Rooms

Bathrooms

  • Total Bathrooms: 4
  • Full Bathrooms: 4

Bedrooms

  • Total Bedrooms: 4

Other Rooms

  • Laundry: Laundry Room

Additional Information

  • Shared Amenities: Community Boat Ramp, Bike Paths, Airport/Runway

Exterior

  • Exterior Features: Lighting, Privacy Wall/Fence, Shed, Storage
  • Deck/Patio: Screened
  • Porch/Patio/Deck: Screened

Parking

  • Parking Features: Open, Guest, Carport

Location

  • Area: 15 - Sombrero Bch Rd to Vaca Cut Gulfside
  • County: Monroe
  • Subdivision: Sea-Air Estates (52.0)
  • Driving Directions: From US-1 in Marathon, turn Gulfside onto Aviation Boulevard. Continue to 9104 Aviation Boulevard.

Community

  • Assoc. Fees Include: None
  • Pets Allowed: Yes

Heating & Cooling

  • Central air: Yes
  • Air Conditioning: Yes
  • Cooling Type: Central Air

Structural Information

  • Architectural Style: Above Flood
  • Construction: CBS, Stucco
  • Roof: Metal
  • Windows/Doors: Impact Rstnce Window
  • Square Feet: 1,924
  • Sq. Ft. Source: Property Data Card
  • Year Built: 1978

Lot Features

  • Property View: Canal
  • Lot Size (Acres): 0.17
  • Lot Size (Sq. Ft.): 7,500
  • Lot Size Source: Property Data Card
  • Lot Dimensions: 75 x 100
  • Zoning: RM - Residential Medium

Water Features

  • Water Front: Yes
  • Water View: Yes
  • Water Front Desc.: Canal Front

Financial Considerations

  • Tax Amount: $9,513.58
  • Tax Year: 2025
  • Terms: Cash, Conventional, VA Loan, FHA

Disclosures and Reports

  • Legal Description: BK 1 LT 6 SEA-AIR ESTATES VACA KEY PB6-91
  • Flood Zone: AE
  • APN: 00331061-000600

Listed by Coldwell Banker Schmitt Real Estate Co, Lisa H Ferringo (305) 797-1221

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Listing agent

— 9104 Aviation Blvd —

  • Lisa H Ferringo

    Coldwell Banker Schmitt Real Estate Co

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 9104 Aviation Blvd

School District:Monroe County School District, Middle Torch Key, FL
NameGradesDistance
Stanley Switlik Elementary School
3400 Overseas Highway, Marathon, FL 33050
PK-53 mi
Marathon School
350 Sombrero Beach Road, Marathon, FL 33050
6-122.4 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 9104 Aviation Blvd Get Price Alerts and Save Property

Date
Details
Price
Change
Source
10/16/2026
Listed
$1,499,000
649.5%
MLS
8/16/2013
Sold
$200,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 9104 Aviation Blvd

Year
Property Taxes
Change
Tax Assessment
Change
2024
$9,425
—
$930,666
-1%
2024
$9,425
4%
$938,161
-2%
2023
$9,094
12%
$959,355
25%
2022
$8,112
7%
$764,754
22%
2021
$7,584
—
$627,128
25%
2021
$7,584
11%
$502,936
-1%
2019
$6,803
2%
$508,249
-1%
2018
$6,660
3%
$514,155
-1%
2017
$6,487
4%
$517,777
8%
2016
$6,230
9%
$478,497
20%
2015
$5,725
60%
$400,117
130%
2014
$3,580
-20%
$173,729
-33%
2013
$4,450
—
$258,984
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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with our affiliated lender
NMLS#: 1598647

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Listed by Coldwell Banker Schmitt Real Estate Co, Lisa H Ferringo (305) 797-1221

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9104 Aviation Boulevard, Marathon, FL 33050 (MLS# 621663) is a Duplex property with 4 bedrooms and 4 full bathrooms. 9104 Aviation Boulevard is currently listed for $1,499,000 and was received on October 16, 2026. Want to learn more about 9104 Aviation Boulevard? Do you have questions about finding other Duplex real estate for sale in Marathon? You can browse all Marathon real estate or contact a Coldwell Banker agent to request more information.

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