1911 Seidenberg Avenue, Key West, FL 33040 (MLS# 619758)

1911 Seidenberg Avenue, Key West, FL 33040

$1,250,000
Property Type: Residential Bedrooms: 2 Baths: 2 Square Footage: 1,119 Lot Size (sq. ft.): 5,000 Status: Active
Current Price: $1,250,000 List Date: 5/04/2026 Last Modified: 9/28/2026

Overview

Description

With only two owners in its history, this well-maintained two-story property presents a rare investment opportunity in Key West. Configured as a legal duplex with two separately metered 1-bedroom, 1-bath units, it offers exceptional flexibility--ideal for investors seeking strong rental potential, business owners looking for employee housing, or owner-occupants wanting to offset costs by renting one unit while living in the other. Set on a 5,000 sq ft lot, the property is surrounded by lush, mature tropical landscaping with a wide variety of plants and palms, creating a private, shaded, treehouse-like setting filled with natural light. Two large screened porches and additional open-air spaces provide ideal indoor-outdoor living, while an outdoor shower enhances the island lifestyle. The home has been thoughtfully updated and well cared for, featuring Mitsubishi mini-split A/C systems in both units, a new hot water heater, new ceiling fans, impact windows upstairs, new gutters, up ...

Listing Details MLS# 619758

Location, Tax & Legal

Street #
1911
Street Name
Seidenberg
Street Suffix
Avenue
Key/Island
Key West
State/Province
FL
Zip Code
33040
County
Monroe
Subdivision
Key West Realty Cos Sub (3.0)
Area
03 - Key West

Contract Information

Listing Board
Key West Association
As is Rght to Inspct
Yes
Potential Short Sale
No
Bank Owned
No
Species List
No

General Property Description

Realtor.COM Type
Multi-family
Style
Multi-Units
Waterfront
No
Control Depth
100
Pool
No
Year Built
1943
Lot SqFt
5000
Lot Sqft Source
Tax Records
Acres
0.12
Living Apx SqFt
1119
SqFt Source
Tax Records
Total Bedrooms
2
Full Baths
2
Total Baths
2
Rentals Allowed
Yes

Association Info

Mandatory Home Owners Asc
No
1st Right of Refusal
No

Building Style

Above Flood
No

More Information

Vehicle Storage

Car(s)
2

Financial Status

Bank Owned
No
Potential Short Sale
No

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: None Waterview: No Waterview Dockage: None Property Condition: Updated/Remodeled Building Style: Other Bldg Style Vehicle Storage: Off Street Parking Furnished: Negotiable Cooling: Ceiling Fans(s); Wall/Window Unit(s) Heating: None Utilities: Cable Available; Elect Separate Meter; FKAA Interior Features: Built-in Cabinets; Smoke Alarms Pre-Wired: Cable Appliances: Dryer; Oven; Range; Refrigerator; Washer Exterior Features: Fencing; Fruit Tree(s); Privacy Wall/Fence; Rain Gutters; Shed Construction: Frame Shutters: Panel Floor: Concrete; Vinyl; Wood Roof: Metal Roof Pets: Pets Allowed Land Size: Less Than 1/4 Acre
Listing Office: Ocean Sotheby's International Realty
Last Updated: September - 28 - 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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