1911 Seidenberg Ave, Key West, FL 33040

Beds
2
Baths
2
Sqft
1,119

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Listed byOcean Sotheby's International Realty
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Overview

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, updated appliances, and soft-close cabinetry. Interior finishes include a mix of pine, vinyl, and concrete flooring, along with stainless, Formica, and butcher block countertops. Both units offer full bathrooms with tubs.

Additional highlights include two off-street parking spaces, low-maintenance grounds, and multiple windows throughout for abundant natural light and airflow. Located in desirable Midtown East, just minutes from everything Key West has to offer, this is a versatile, income-producing property with strong upside potential.

Location

Full feature list

Basic info

Property type
Multi-family
Number of bedrooms
2
Number of bathrooms
2
Square feet
1,119
Lot size (acres)
0.12
Year built
1943

Utilities

Heating
None
Cooling
Wall/window unit(s), Ceiling Fans

Taxes

Tax Annual Amount (2025)
$7,059.17

Public schools

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Disclaimer: Certain information displayed on this listing has been derived from parties other than Final Offer, LLC. Information provided and their sources have been deemed reliable, but accuracy of information is not guaranteed and therefore should be independently verified.

Sourced from: Florida Keys Board of Realtors MLS MLS®#: 619758 Last checked:

IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the MLS. Copyright 2026 Florida Keys Board of REALTORS®, Inc.