Half-Duplex with
For Sale
$789,000
341 3rd Street, Key Colony Beach, FL 33051
MULTI_FAMILY - Key Colony, FL
Property Size900 SF
Lot Size0.07 Acres
Price / SF$876.67
Days on Market56
Property Features for 341 3rd Street
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
R-1B - Key Colony Single
Bedrooms
2
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 1, Bedroom 2, Bathroom 2, Bathroom 1
Pets allowed
Yes
Interior features
Built-in Cabinets, Granite Counter Top, Storage
Exterior features
Outdoor Shower, Storage
Appliances
Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave
Subdivision
Key Colony Beach (53.5)
Directions
Turn off of US#1 (Overseas Highway) onto Key Colony Causeway. Bear left on E. Ocean Drive. Turn left onto 3rd St. The duplex is on the left side about 2/3 the way down road.
Standard status
Active
APN
00072790000000
Size
900 SF
Lot size
0.07 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
Bk 3 S 1/2 Lt 13 Key Colony Beach Pb3-120 Shelter Key Or380-643 Or463-874 Or802-1762 Or937-324 Or1585-2444/51 Or1587-160
Tax Annual Amount
6496
Legal Description
Bk 3 S 1/2 Lt 13 Key Colony Beach Pb3-120 Shelter Key Or380-643 Or463-874 Or802-1762 Or937-324 Or1585-2444/51 Or1587-160
Utilities
Utilities
Cable Available
Heating system
Ductless (Heating)
Cooling system
Ductless
Water front
1
Amenities
dockage
Building Details
Year built
1971
Floors in Building
1
Flooring type
Tile
Building materials
CBS
Roof type
Metal
Additional Structures
Storage
Listing Agency:
Florida Keys Real Estate Group
(305) 783-3395
Listed By:
Bonnie Sanderson · License #3209351
(305) 393-2691
Added: Jul 3
Changed: Jul 30
Last Checked: Aug 27 at 4:06PM
MLS# 620521
Copyright © 2026 Marathon and Lower Keys 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.
Investment Insights
Based on property information with market context.
This half-duplex offers remodeled living space with tile flooring, granite counters, built-in cabinets, and storage. Kitchen and laundry appliances include a washer, dryer, dishwasher, refrigerator, range, oven, and microwave. Exterior features include an outdoor shower and storage. Heating and cooling are provided by ductless systems, and the roof is metal. Construction is CBS with a 1971 build date, and key exterior upgrades include Anderson impact entry doors, double-pane PGT windows, and Low-E Anderson sliding glass doors.
The property is situated in Key Colony Beach and is described as a short walk to the Cabana Club, with plenty of parking. The listing also notes 30 feet of dockage. Key Colony Beach offers amenities including its own post office, restaurants, a marina, shopping, a par 3 golf course, and pickleball and tennis courts, as well as basketball, bocce ball, and horseshoes. Marathon Airport is listed as 10 minutes away, and Key West International Airport as a 1-hour drive.
The home has two bedrooms and two bathrooms and includes cable availability.
The property is situated in Key Colony Beach and is described as a short walk to the Cabana Club, with plenty of parking. The listing also notes 30 feet of dockage. Key Colony Beach offers amenities including its own post office, restaurants, a marina, shopping, a par 3 golf course, and pickleball and tennis courts, as well as basketball, bocce ball, and horseshoes. Marathon Airport is listed as 10 minutes away, and Key West International Airport as a 1-hour drive.
The home has two bedrooms and two bathrooms and includes cable availability.
Key Highlights
- 0.07‑acre half‑duplex property in R‑1B - Key Colony Single zoning
- 30 feet of dockage and plenty of parking
- Remodeled interior with granite counters, tile flooring, and built‑in cabinets
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
278
Businesses Nearby
Explore this area
Business Placement
Demographics for 33051, FL
790
Population
1,132
Households
0.7
Avg Household Size
63
Median Age
48%
College-Educated
95%
High-School Grad
0.4 sq mi
ZIP Area
1,975
Density / Sq Mi
$94,531
Median Household Income
$38,860
Median Earnings
$1,849
Median Rent
$834,800
Median Home Value
Market
Vacancy Rate% for Multifamily in South region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Half-duplex in R-1B zoning with ductless HVAC, granite counters, and access to 30 feet of dockage.
Where is this duplex located?
The property is located at 341 3rd Street Key Colony Beach, FL.
What is the asking price?
The asking price for this property is $789,000.
What are key features of this property?
This property features: 0.07‑acre half‑duplex property in R‑1B - Key Colony Single zoning; 30 feet of dockage and plenty of parking; Remodeled interior with granite counters, tile flooring, and built‑in cabinets
