574-576 99Th Street, Marathon, FL 33050

$1,650,000

Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 1,854 Lot Size (sq. ft.): 5,220 Status: Active

Current Price: $1,650,000 List Date: 12/31/2025 Last Modified: 2/26/2026

Description

Turnkey Duplex on Deep Water Canal Marathon Florida Rarely available beautifully renovated 2 2 + 2 2 duplex in the heart of Marathon. Each side is 927 square feet with impact windows granite counters stainless steel appliances and tile throughout. Boater's Dream 30 foot concrete dock + seawall per side 60 foot total with 30 Amp shore power plug. Direct Ocean access and quick Gulf access via Vaca Cut. Income Ready Both units currently rented month-to-month at $3,000 per side Vacation rental potential $2,500- $3,000 per week. Waterside patio with string lights solar lit dock pilings under-dock fish lights attracting snapper and tarpon Manatees frequent the canal. Located Across from City Dog Park close to Sombrero Beach shopping and dining close to Marathon International Airport and Million Air FBO fully Renovated in 2018 and covered carport. Live in one rent the other or maximize investment potential truly turnkey. Both sides tenant occupied.

Open Houses

Saturday, February 28, 10:00 am - 2:00 pm

More Information MLS# 617878

Contract Information

Listing Board: Florida Keys Current Price: $1,650,000 Listing Date: 2025-12-31 List Price: $1,650,000

Location, Tax & Legal

City: MARATHON Mile Marker: 52 Marathon Neighborhood: Airport - Ocean (72nd to 106th) Side: Ocean Flood Zone: AE Alternate Key #: 1429686 Add'l Parcel #1: 00351980-000000 Parcel #: 00351980-000100 Zoning: RH - Residential High Deed Restrictions: Unknown Legal: N /12 LOT 4 CORAL COLONY PB3-122 KEY VACA OR432-18 OR1409-260 OR2033-2312 OR2037-481 OR3085-1151 Taxes: 12975 Tax Year: 2025 Pub Sewer HkUp: Yes Street #: 574-576 Street Name: 99Th Street Suffix: Street 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: 8 Lot SqFt: 5220 Pool: No Total Units: 2 Acres: 0.12 SqFt Source: Tax Records Rentals Allowed: Yes Style: Duplex Year Built: 1959 Living Apx SqFt: 1854 Total Bedrooms: 4 Full Baths: 4 Total Baths: 4

Remarks & Misc

Remarks – Consumer: Turnkey Duplex on Deep Water Canal Marathon Florida Rarely available beautifully renovated 2 2 + 2 2 duplex in the heart of Marathon. Each side is 927 square feet with impact windows granite counters stainless steel appliances and tile throughout. Boater's Dream 30 foot concrete dock + seawall per side 60 foot total with 30 Amp shore power plug. Direct Ocean access and quick Gulf access via Vaca Cut. Income Ready Both units currently rented month-to-month at $3,000 per side Vacation rental potential $2,500- $3,000 per week. Waterside patio with string lights solar lit dock pilings under-dock fish lights attracting snapper and tarpon Manatees frequent the canal. Located Across from City Dog Park close to Sombrero Beach shopping and dining close to Marathon International Airport and Million Air FBO fully Renovated in 2018 and covered carport. Live in one rent the other or maximize investment potential truly turnkey. Both sides tenant occupied.

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No Association Fee $: 0

Fee Includes

None: 1

Dockage

Dock Length: 60

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Freezer: 1 Refrigerator: 1 Stainless Steel Appliance(s): 1 Washer: 1

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1 Forced Air: 1

Waterfront

Canal Front: 1

Waterview

Canal View: 1

Floor

Tile: 1

Interior Features

Granite Counter Top: 1

Building Style

Above Flood: No Conch: 1

Vehicle Storage

Carport: 1 Attached: 1 Off Street Parking: 1

Construction

Concrete: 1 Stucco: 1

Land Size

Less Than 1/4 Acre: 1

Terms

Cash: 1 Conventional: 1

Utilities

Municipal Sewer: 1

Porch/Balcony

Patio: 1

Exterior Features

Lighting: 1

GF-Interior Features

Tankless Hot Wtr Htr: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Building Style: Conch Vehicle Storage: Carport; Attached; Off Street Parking Cooling: Ceiling Fans(s); Central Air Heating: Central; Forced Air Utilities: Municipal Sewer Interior Features: Granite Counter Top Appliances: Dishwasher; Disposal; Dryer; Freezer; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Lighting Construction: Concrete; Stucco Floor: Tile Pets: Pets Allowed Land Size: Less Than 1/4 Acre Terms: Cash; Conventional GF-Interior Features: Tankless Hot Wtr Htr

Listing Office: Continental Real Estate Group, Inc.

Last Updated: February - 26 - 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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