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  • 574 & 576 99th Street Ocean, Marathon, FL 33050 (MLS# 619866)

574 & 576 99th Street Ocean, Marathon, FL 33050

$1,400,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 1,854 Lot Size (sq. ft.): 5,220 Status: Active
Current Price: $1,400,000 List Date: 5/12/2026 Last Modified: 5/24/2026

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)

More Information MLS# 619866

Contract Information

Listing Board: Marathon/Lower Keys As is Rght to Inspct: Yes Potential Short Sale: No Bank Owned: No Current Price: $1,400,000 Listing Date: 2026-05-11 List Price: $1,400,000

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: May - 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.

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