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Canal-Front Duplex with 75-Foot Docks
For Sale
$1,700,000

261 - 271 9th Street, Key Colony Beach, FL 33051

Residential, Key Colony, FL

Property Size2,040 SF
Lot Size0.19 Acres
Price / SF$833.33
Days on Market276

Property Features for 261 - 271 9th Street

General Information

Property type Residential Multi Family
Property subtype Duplex
Zoning R-2A - Key Colony Two Fam
Bedrooms 4
Bathrooms 4
Full bathrooms 4
Rooms Bathroom 2, Bathroom 4, Bedroom 2, Bedroom 3, Bathroom 3, Bedroom 4, Bathroom 1, Bedroom 1
Parking features RV, Open
Patio and Porch features Porch
Pets allowed Yes
Interior features Storage
Exterior features Storage
Appliances Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave, Disposal
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 261 & 271 9th on left.
Standard status Active
APN 00075530-000000
Size 2,040 SF
Lot size 0.19 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description BK 10 LT 9 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB-4-11 SHELTER KEY
Tax Annual Amount 12496
Legal Description BK 10 LT 9 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB-4-11 SHELTER KEY

Utilities

Utilities Cable Available
Cooling system Central Air
Water front 1

Building Details

Year built 1972
Floors in Building 1
Number of units 2
Flooring type Tile
Building materials CBS
Roof type Metal
Additional Structures Storage
Listing Agency: Ocean Sotheby's International · Sotheby's International Realty
Listed By: Karen D Raspe · License #3226605
Added: Nov 19, 2025 Changed: Aug 19 Last Checked: Aug 22 at 5:06PM
MLS# 617382

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 full duplex at 261–271 9th Street is offered as a single property or as two separate halves. The layout includes 4 bedrooms and 4 bathrooms across more than 2,000 square feet of living space, with updates throughout and a covered carport and storage room on the south side (261). Ample parking is provided for cars, trailers, and other island uses.

The property sits on a 100-foot-wide canal with substantial dockage for boating. The south side (261) has a 42-foot dock, while the north side (271) offers 33 feet of additional dockage, for a combined total of 75 feet. The listing also notes quick access to both the open Ocean and the open Gulf via boat, as well as nearby city amenities including the marina, golf course, and recreational facilities.

The property is zoned R-2A (Key Colony Two Fam), supporting duplex use at this site.

Key Highlights

  • Full duplex on a 100‑foot‑wide canal in Key Colony Beach with dockage and boating access
  • 4 bedrooms and 4 bathrooms with over 2,000 SF total living space
  • 75 feet of total dockage: 42' dock on the south side (261) and 33' dock on the north side (271)

Property Analytics

Current Use

Duplexes

Lease Details

2
Residential units
Multi-tenant
Tenancy

Location Intelligence

Trade Area within ½ mile

244
Businesses Nearby

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

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Well-maintained duplex on a 100-foot-wide canal, featuring 75 feet of dockage and 4 bedrooms and 4 bathrooms.
Where is this duplex located?
The property is located at 261 - 271 9th Street Key Colony Beach, FL.
What is the asking price?
The asking price for this property is $1,700,000.
What are key features of this property?
This property features: Full duplex on a 100‑foot‑wide canal in Key Colony Beach with dockage and boating access; 4 bedrooms and 4 bathrooms with over 2,000 SF total living space; 75 feet of total dockage: 42' dock on the south side (261) and 33' dock on the north side (271)
More about this property
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