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Duplex with Private Dock
For Sale
Under Contract
$1,300,000

651 9th Street, Key Colony Beach, FL 33051

Residential, Key Colony, FL

Property Size1,176 SF
Lot Size0.10 Acres
Price / SF$1,105
Days on Market204

Property Features for 651 9th Street

General Information

Property type Residential
Property subtype Duplex
Zoning R-2A - Key Colony Two Fam
Bedrooms 2
Bathrooms 3
Full bathrooms 3
Rooms Bedroom 1, Bathroom 2, Bathroom 1, Bedroom 2, Bathroom 3
Parking features RV
Patio and Porch features Porch
Pets allowed Yes
Pool private 1
Interior features Built-in Cabinets, Granite Counter Top, Dade County Pine, Elevator, Storage, Walk-in Closet(s)
Exterior features Fencing, Lighting
Fencing Fenced
Accessibility Accessible Elevator Installed
Appliances Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave, Disposal, Stainless Steel Appliance(s)
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 Turn right onto 9th Follow down to #651 on left
Standard status Active Under Contract
APN 00075730-000000
Size 1,176 SF
Lot size 0.10 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description BLK 10 N 1/2 LOT 28 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB4-11 SHELTER KEY
Tax Annual Amount 9607
Legal Description BLK 10 N 1/2 LOT 28 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB4-11 SHELTER KEY

Utilities

Utilities Cable Available
Heating system Central
Cooling system Central Air
Water front 1

Amenities

updated kitchen
custom baths
screened porch
inground swimming pool
marble decking
dock with boat lift
air-conditioned storage

Building Details

Year built 1989
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: Jan 30 Changed: Aug 19 Last Checked: Aug 22 at 9:06PM
MLS# 618394

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.

Duplex waterfront residence featuring an elevator, updated kitchen, and custom baths, with soaring wood ceilings and an open-concept kitchen, dining, and living area. Stackable sliders connect to a spacious screened porch, and the primary suite offers porch access along with a skylit spa-style bath featuring a jetted tub, walk-in tiled shower, and dual vanities. The lower level is set up for indoor-outdoor living with a private, inground swimming pool and expansive covered and uncovered paved patios, plus mature tropical landscaping and fenced yard.

Additional amenities include a 37.5 foot dock with a 15k boat lift on a wide, deep canal with quick access to the open ocean and the Gulf via Vaca Cut. An on-site, air-conditioned storage area with sliders provides direct patio and dock access, and a permitted third full bathroom is located on the lower level. Built with CBS construction, a metal roof, tile flooring, central heating and central air, and accessible elevator installation. Lot size is 0.1 acres, with 1,176 square feet, built in 1989, with RV parking and cable available.

Key Highlights

  • 37.5 foot dock with 15k boat lift on a wide, deep canal
  • Private inground swimming pool plus covered and uncovered paved patios
  • Elevator plus skylit spa‑style primary bath with jetted tub, walk‑in tiled shower, and dual vanities

Property Analytics

Current Use

Duplexes

Lease Details

1
Residential units

Location Intelligence

Trade Area within ½ mile

409
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 - R-2A zoned waterfront duplex with a private pool, elevator, and a dock with boat lift for easy canal access.
Where is this duplex located?
The property is located at 651 9th Street Key Colony Beach, FL.
What is the asking price?
The asking price for this property is $1,300,000.
What are key features of this property?
This property features: 37.5 foot dock with 15k boat lift on a wide, deep canal; Private inground swimming pool plus covered and uncovered paved patios; Elevator plus skylit spa‑style primary bath with jetted tub, walk‑in tiled shower, and dual vanities
More about this property
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