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About This Home

This 2-bedroom, 2-bathroom residential multi family at 1911 Seidenberg Avenue in Key West, FL is listed for $1,250,000 ($1,117 per sqft). Built in 1943, the home offers 1,119 sqft of living space on a 0.12 acres lot.

Agent 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, 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.

Key Features

  • Built in 1943
  • 0.12 acre lot

Property Details

2 full
1943

Amenities

ViewA/C

Monthly Cost Estimate

$6,685/mo

20% down · 6.5% · 30 years

Principal$904
Interest$5,417
Insurance$365

Estimates only. Actual payments may vary.

Location

1911 Seidenberg Avenue

Key West, FL 33040

Key West Realty Cos Sub (3.0)

Features & Amenities

Interior Features

Built-in Cabinets

Exterior Features

FencingFruit Tree(s)Rain GuttersPrivacy Wall/FenceShed

Property Details

Flooring

ConcreteWoodVinyl

Construction

Frame

Views

Water

Pool Features

PatioPorchDeck

Parking

Off Street

Cooling

Window Unit(s)Wall/Window Unit(s)

Appliances

WasherDryerRefrigeratorRangeOven

Questions & Answers

This 2-bedroom, 2-bathroom residential multi family at 1911 Seidenberg Avenue is listed at $1,250,000 ($1,117/sqft). The estimated monthly payment is $5,417 based on 20% down at 6.5% interest.

Key features include: Built in 1943, 0.12 acre lot. Interior Features: Built-in Cabinets. Exterior Features: Fencing, Fruit Tree(s), Rain Gutters.

This property is listed by Everett H Smith and can be reached at 3053042651 or esmith@oceansir.com.

ES

Everett H Smith

Agent at Ocean Sotheby's International Realty

(305) 304-2651

Listed by Ocean Sotheby's International Realty · View on Broker Site

MLS# 619758· Source: listhub· Updated 32 days ago

Copyright © 2026 Key West Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

1911 Seidenberg Avenue, Key West, FL 33040

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