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10881 7th Avenue Gulf, Marathon, FL 33050

New Listing
$1,200,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 1,888 Lot Size (sq. ft.): 9,613 Status: Active
Current Price: $1,200,000 List Date: 10/08/2026 Last Modified: 10/08/2026

Description

Duplex opportunity in the heart of Marathon with two legal addresses: 10881 7th Avenue Gulf and 10883 7th Avenue Gulf. This updated DUPLEX offers excellent flexibility for investors, owner occupants, or those looking to live in one unit and rent the other. The first floor residence features 3 bedrooms, 2.5 baths, a private entrance, its own patio area, separate laundry, and separate electric and water meters. It is currently rented for $3,700/month on a month to month basis, with the tenant open to a one year lease. The second floor unit offers 1 bedroom, 1 bath, its own private staircase and entrance, a dedicated outdoor sitting area, separate laundry, and separate utility meters. The upstairs unit is currently vacant and was most recently rented for $3,000/month, providing demonstrated combined rental potential of approximately $6,700/month or $80,400 annually. The property has been renovated and updated and offers exceptional parking for 5+ vehicles, with ample room for cars, boats, trailers and more. Adding even more value, approved plans convey with the sale for a substantial two-story garage and storage building at the rear of the property. The approved design includes approximately 2,768 sq. ft. of enclosed space, with a 1,440 sq. ft. shared garage on the first floor and additional dedicated and shared storage areas, two bathrooms, and mechanical space upstairs. A rare opportunity to combine strong rental income, separate living spaces, extensive parking, and future garage/storage potential, all offered at $1,200,000.

More Information MLS# 621548

Contract Information

Current Price: $1,200,000 Listing Date: 2026-10-08 Listing Board: Marathon/Lower Keys List Price: $1,200,000 As is Rght to Inspct: Yes Potential Short Sale: No Bank Owned: No Species List: No

Location Tax Legal

Street #: 10881 Street Name: 7th Avenue Gulf Key/Island: Marathon State/Province: FL Zip Code: 33050 County: Monroe Subdivision: Key Colony Sub (53.0) Area: 15 - Sombrero Bch Rd to Vaca Cut Gulfside

General Property Description

Realtor.COM Type: Multi-family Style: Duplex Waterfront: No Pool: No Year Built: 1973 Total Units: 2 Lot Size: X Lot SqFt: 9613 Lot Sqft Source: Property Data Card Acres: 0.22 Living Apx SqFt: 1888 SqFt Source: Property Data Card Total Bedrooms: 4 Full Baths: 3 Half Baths: 1 Total Baths: 4 Rentals Allowed: With Restrictions Min Rental Days: 7

Status Change Info

Status: Active

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No

Building Style

Above Flood: Unknown

Vehicle Storage

Car(s): 4+

Financial Status

Auction: No Bank Owned: No Potential Short Sale: No Standard Sale: Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: None Waterview: Open Water View Dockage: None Property Condition: Updated/Remodeled Vehicle Storage: Off Street Parking; Trailer Storage Furnished: Unfurnished Cooling: Central Air Utilities: Buyer to Verify; Cable Available; Elect Separate Meter; FKAA; Municipal Sewer; Water Separate Meter Interior Features: Built-in Cabinets; Storage; Walk-in Closet(s) Appliances: Dishwasher; Dryer; Freezer; Microwave; Oven; Range; Refrigerator; Washer Exterior Features: Storage Construction: CBS Floor: Vinyl Pets: Pets Allowed Land Size: Less Than 1/4 Acre Title: Title Ins - Buyer
Listing Office: Coldwell Banker Schmitt Real Estate Co.
Last Updated: October - 08 - 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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