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$1,300,000
Marathon, FL 33050
MLS# 619866
4 beds | 4 baths | 1854 sqft
1 / 45
Open House (07/28/2026 - 11:00 am - 1:00 pm)
Property Description
Beautifully renovated and fully turnkey duplex located on a deep-water canal in the heart of Marathon. This rare income-producing property features two spacious 2BD/2BA units, each offering approximately 927 sq. ft. of updated coastal living with impact windows and doors, granite countertops, stainless steel appliances, tile flooring throughout, and covered parking. Renovated in 2018, the property blends modern finishes with the relaxed Florida Keys boating lifestyle. A true boater's dream, each side offers its own 30' concrete dock and seawall (60' total) complete with 30-amp shore power. Enjoy quick ocean access and easy Gulf access via Vaca Cut, making this an exceptional setup for anglers and boating enthusiasts alike. The waterside outdoor spaces are designed for entertaining and enjoying the Keys lifestyle, featuring string lighting, solar-lit dock pilings, under-dock fish lights that attract snapper and tarpon, and frequent manatee visits along the canal. Located directly adjacent to Oceanfront Park & Dog Park, owners and guests enjoy immediate access to one of Marathon's premier waterfront parks offering a dog park, kayak launch, open green space, waterfront walking areas, playgrounds, and frequent community events. Conveniently located near Sombrero Beach, shopping, dining, and Florida Keys Marathon International Airport. Currently tenant occupied with both units rented month-to-month. This property also has strong vacation rental potential. Ideal opportunity to live in one side while renting the other, or maximize income potential with a fully turnkey investment property in one of the Florida Keys' most desirable boating communities. Current Insurances are very reasonable: $3,841 Flood (Covers both sides) 576 - $4,303 Wind 574 - $4,129 Wind 576 - $860 HO/Liability 574 - $721 HO/Liabilty (Pictures are of 576 99th, 574 is the same layout/finishes. Access can be arranged)
Details
Maps
Contract Information
Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Potential Short Sale: No
Bank Owned: No
Current Price: $1,300,000
Listing Date: 2026-05-11
List Price: $1,300,000
Location, Tax & Legal
City: MARATHON
Off Shore Island: No
Mile Marker: 52
Marathon Neighborhood: Airport - Ocean (72nd to 106th)
Senior Community YN: No
Side: Ocean
Flood Zone: AE 7
Alternate Key #: 00351980-000100
Parcel #: 00351980-000100
Zoning: RH - Residential High
Deed Restrictions: No
Taxes: 6476.6
Tax Year: 2025
Pub Sewer HkUp: Yes
Street #: 574 & 576
Street Name: 99th Street Ocean
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Coral Colony (52.0)
Area: 16 - Sombrero Bch Rd to Vaca Cut - Oceanside
General Property Description
Realtor.COM Type: Multi-family
Waterfront: Yes
Control Depth: 4
Lot SqFt: 5220
Pool: No
Lot Sqft Source: Property Data Card
SqFt Source: Property Data Card
Rentals Allowed: Yes
Min Rental Days: 7
Style: Duplex
Year Built: 1959
Living Apx SqFt: 1854
Total Bedrooms: 4
Full Baths: 4
Total Baths: 4
Remarks & Misc
Remarks – Consumer: Beautifully renovated and fully turnkey duplex located on a deep-water canal in the heart of Marathon. This rare income-producing property features two spacious 2BD/2BA units, each offering approximately 927 sq. ft. of updated coastal living with impact windows and doors, granite countertops, stainless steel appliances, tile flooring throughout, and covered parking. Renovated in 2018, the property blends modern finishes with the relaxed Florida Keys boating lifestyle.
A true boater's dream, each side offers its own 30' concrete dock and seawall (60' total) complete with 30-amp shore power. Enjoy quick ocean access and easy Gulf access via Vaca Cut, making this an exceptional setup for anglers and boating enthusiasts alike. The waterside outdoor spaces are designed for entertaining and enjoying the Keys lifestyle, featuring string lighting, solar-lit dock pilings, under-dock fish lights that attract snapper and tarpon, and frequent manatee visits along the canal.
Located directly adjacent to Oceanfront Park & Dog Park, owners and guests enjoy immediate access to one of Marathon's premier waterfront parks offering a dog park, kayak launch, open green space, waterfront walking areas, playgrounds, and frequent community events. Conveniently located near Sombrero Beach, shopping, dining, and Florida Keys Marathon International Airport.
Currently tenant occupied with both units rented month-to-month. This property also has strong vacation rental potential. Ideal opportunity to live in one side while renting the other, or maximize income potential with a fully turnkey investment property in one of the Florida Keys' most desirable boating communities. Current Insurances are very reasonable:
$3,841 Flood (Covers both sides)
576 - $4,303 Wind 574 - $4,129 Wind
576 - $860 HO/Liability 574 - $721 HO/Liabilty
(Pictures are of 576 99th, 574 is the same layout/finishes. Access can be arranged)
Directions: US-1 to 99th Street, property is on the left about half way down
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Association Fee $: 0
Fee Includes
None: 1
Dockage
Dock Length: 60
Seawall: Concrete
Tax Exemptions
Homestead: 1
Appliances
Dishwasher: 1
Disposal: 1
Microwave: 1
Range: 1
Refrigerator: 1
Stainless Steel Appliance(s): 1
Washer: 1
Pets
Pets Allowed: 1
Cooling
Central Air: 1
Heating
Central: 1
Waterfront
Canal Front: 1
Waterview
Canal View: 1
Floor
Tile: 1
Neighborhood Feature
Airstrip: 1
Bike Paths: 1
Interior Features
Granite Counter Top: 1
Property Condition
Updated/Remodeled: 1
Building Style
Above Flood: Unknown
Conch: 1
Windows/Doors
Impact Rstnce Doors: 1
Impact Rstnce Window: 1
Vehicle Storage
Carport: 1
Covered Parking: 1
Off Street Parking: 1
Construction
CBS: 1
Land Size
Less Than 1/4 Acre: 1
Furnished
Furnished: 1
Partially: 1
Terms
Cash: 1
Conventional: 1
FHA: 1
No Seller Finance: 1
VA: 1
Utilities
Buyer to Verify: 1
Porch/Balcony
Patio: 1
Title
Negotiable: 1
Roof
Other Roof: 1
Financial Status
Auction: No
Bank Owned: No
Potential Short Sale: No
Standard Sale: Yes
GF-Interior Features
Tankless Hot Wtr Htr: 1
Status Change Info
Status: Active
Property Features
Fee Includes: None
Tax Exemptions: Homestead
Waterfront: Canal Front
Waterview: Canal View
Property Condition: Updated/Remodeled
Building Style: Conch
Vehicle Storage: Carport; Covered Parking; Off Street Parking
Furnished: Furnished; Partially
Cooling: Central Air
Heating: Central
Utilities: Buyer to Verify
Interior Features: Granite Counter Top
Appliances: Dishwasher; Disposal; Microwave; Range; Refrigerator; Stainless Steel Appliance(s); Washer
Construction: CBS
Floor: Tile
Roof: Other Roof
Pets: Pets Allowed
Neighborhood Feature: Airstrip; Bike Paths
Land Size: Less Than 1/4 Acre
Terms: Cash; Conventional; FHA; No Seller Finance; VA
Title: Negotiable
GF-Interior Features: Tankless Hot Wtr Htr
Listing Office: Seafarer Realty LLC
Last Updated: July - 24 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.