Canalfront Duplex with Private
For Sale
$1,290,000
440 9th Street, Key Colony Beach, FL 33051
Residential, Key Colony, FL
Property Size1,682 SF
Lot Size0.10 Acres
Price / SF$766.94
Days on Market115
Property Features for 440 9th Street
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R-2A - Key Colony Two Fam
Bedrooms
3
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 1, Bathroom 2, Bathroom 1, Bedroom 2, Bedroom 3
Parking features
Open, RV
Patio and Porch features
Deck, Patio
Pets allowed
Yes
Interior features
Storage, Quartz Countertops
Appliances
Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave
Subdivision
Key Colony Bch 1st Addn Amd Plat (53.5)
Directions
Overseas Hwy mile marker 53.5 turn at light onto Sadowski/KCB Causeway. Turn right onto W. Ocean Dr. Turn right onto 9th St. Follow to #440 9th on the right
Standard status
Active
Size
1,682 SF
Lot size
0.10 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
BK 9 S 1/2 LT 49 KEY COLONY BEACH FIRST ADDN PB4-11 SHELTER KEY OR1378-2402 OR1531-2373 OR1531-2382/84 OR2616-52/53 OR29
Tax Annual Amount
7477
Legal Description
BK 9 S 1/2 LT 49 KEY COLONY BEACH FIRST ADDN PB4-11 SHELTER KEY OR1378-2402 OR1531-2373 OR1531-2382/84 OR2616-52/53 OR29
Utilities
Utilities
Cable Available
Cooling system
Central Air
Water front
1
Amenities
deck
private dock
Building Details
Year built
1995
Floors in Building
1
Flooring type
Tile
Building materials
CBS
Roof type
Metal
Additional Structures
Storage
Listing Agency:
Ocean Sotheby's International · Sotheby's International Realty
(305) 735-4447
Listed By:
Karen D Raspe · License #3226605
(305) 393-9010
Added: May 11
Changed: Aug 19
Last Checked: Sep 2 at 6:06PM
MLS# 619889
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 1,682-square-foot duplex property occupies a 0.1-acre site in Key Colony and was built in 1995. The residence offers three bedrooms and two bathrooms, with an open arrangement connecting the living, dining, and kitchen areas. Quartz countertops, tile flooring, central air, storage, and a full appliance package are included. CBS construction and a metal roof complete the improvements.
A spacious deck leads toward a private dock on a deep, wide canal, with a 10k lb lift for boating use. The property also includes patio space, open parking, RV parking, and cable availability. R-2A zoning is identified as Key Colony Two Fam. Marathon International Airport is 3 miles away, while the property is approximately five minutes from both the open ocean and the open Gulf.
A spacious deck leads toward a private dock on a deep, wide canal, with a 10k lb lift for boating use. The property also includes patio space, open parking, RV parking, and cable availability. R-2A zoning is identified as Key Colony Two Fam. Marathon International Airport is 3 miles away, while the property is approximately five minutes from both the open ocean and the open Gulf.
Key Highlights
- 1,682 SF duplex property on a 0.1‑acre site
- Three bedrooms and two bathrooms with open living, dining, and kitchen areas
- Private dock on a deep, wide canal with 10k lb lift
Property Analytics
Property Profile
Current Use
Lease Details
1
Residential units
Location Intelligence
Trade Area within ½ mile
409
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 - Updated island property with open living areas, boating access, and R-2A zoning in Key Colony.
Where is this duplex located?
The property is located at 440 9th Street Key Colony Beach, FL.
What is the asking price?
The asking price for this property is $1,290,000.
What are key features of this property?
This property features: 1,682 SF duplex property on a 0.1‑acre site; Three bedrooms and two bathrooms with open living, dining, and kitchen areas; Private dock on a deep, wide canal with 10k lb lift
