Two-Unit
For Sale
$1,250,000
1911 Seidenberg Avenue, Key West, FL 33040
Residential, Key West, FL
Property Size1,119 SF
Lot Size0.11 Acres
Price / SF$1,117
Days on Market154
Property Features for 1911 Seidenberg Avenue
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
SF - Single Family
Bedrooms
2
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 1, Bathroom 2, Bedroom 2, Bathroom 1
Parking features
Off Street
Window features
Screens
Patio and Porch features
Patio, Deck, Porch
Interior features
Built-in Cabinets, Smoke Alarms
Exterior features
Fencing, Fruit Tree(s), Rain Gutters, Privacy Wall/Fence, Shed
Fencing
Privacy, Fenced
Appliances
Washer, Dryer, Refrigerator, Range, Oven
Subdivision
Key West Realty Cos Sub (3.0)
View
Water
Standard status
Active
APN
00047280000000
Size
1,119 SF
Lot size
0.11 Acres
Additional Details
Individually Metered Utilities
unspecified utilities
Taxes and HOA fees
Tax Year
2025
Tax Description
Kw Kw Realty Co's First Sub Pb1-43 Lot 4 Sqr 19 Tr 21 Or300-449/50 Or402-1080-1081 Or2928-1201
Tax Annual Amount
7059
Legal Description
Kw Kw Realty Co's First Sub Pb1-43 Lot 4 Sqr 19 Tr 21 Or300-449/50 Or402-1080-1081 Or2928-1201
Utilities
Utilities
Cable Available
Cooling system
Window Unit(s), Wall/Window Unit(s)
Amenities
screened porches
outdoor shower
Building Details
Year built
1943
Number of units
2
Flooring type
Wood, Vinyl, Concrete
Building materials
Frame
Roof type
Metal
Architectural style
Other
Buildings
1
Listing Agency:
Ocean Sotheby's International Realty
(305) 294-1117
Listed By:
Everett H Smith
(305) 304-2651
Added: May 29
Changed: Oct 28
Last Checked: Oct 29 at 9:06AM
MLS# 620075
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.
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Investment Insights
Based on property information with market context.
This 1,119-square-foot, two-story duplex at 1911 Seidenberg Avenue contains two separately metered apartments, each with one bedroom and one bathroom. Both bathrooms have tubs. The property includes two screened porches, additional outdoor areas, an outdoor shower, and two off-street parking spaces. Interior finishes include wood, vinyl, and concrete flooring, with stainless steel, Formica, and butcher block countertops.
Updates include a hot water heater, ceiling fans, appliances, upstairs impact windows, and gutters. The property was built in 1943 and is located in Key West, Florida.
Updates include a hot water heater, ceiling fans, appliances, upstairs impact windows, and gutters. The property was built in 1943 and is located in Key West, Florida.
Key Highlights
- Two‑unit duplex with separate meters for each residence
- 1,119 square feet across two stories
- Each apartment has 1 bedroom and 1 bathroom with a tub
Property Analytics
Who owns this building?
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
1,411
Businesses Nearby
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Business Placement
Demographics for 33040, FL
35,958
Population
19,001
Households
1.9
Avg Household Size
44
Median Age
38%
College-Educated
92%
High-School Grad
17.7 sq mi
ZIP Area
2,032
Density / Sq Mi
$79,038
Median Household Income
$42,458
Median Earnings
$2,079
Median Rent
$766,400
Median Home Value
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Market
Vacancy Rate% for Multifamily in South region
Frequently Asked Questions
What type of property is this?
Duplex - Two separately metered residences provide a distinct configuration within this two-story Key West property.
Where is this duplex located?
The property is located at 1911 Seidenberg Avenue Key West, FL.
What is the asking price?
The asking price for this property is $1,250,000.
What are key features of this property?
This property features: Two‑unit duplex with separate meters for each residence; 1,119 square feet across two stories; Each apartment has 1 bedroom and 1 bathroom with a tub
