10881 7th Avenue Gulf, Marathon, FL 33050
New Listing
$1,200,000
Virtual Tour
https://tours.keyspropertyvisuals.com/cvtnb/366230
Virtual Tour
https://tours.keyspropertyvisuals.com/cvtnb/366230
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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