Date
Details
Price
Change
Source
3/04/2026
Sold
$1,310,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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Property Description
Welcome to this inviting east facing, waterfront, stilted half duplex in Key Colony Beach, offering three bedrooms, four bathrooms, and nearly 1,600 square feet of interior living space. With 37.5 feet of concrete seawall, step down wooden dock with concrete pilings, heated and chilled pool, and a spacious concrete patio for lounging and entertaining, this property is perfectly designed for the Keys lifestyle. Peace of mind features include metal roof, Hardie board siding, recently upgraded impact windows and doors, and a 2020 AC. A generous carport and driveway provide ample parking, along with a downstairs enclosure that features a full convenience bathroom, air conditioned cabana room, and a one car garage for storage of toys and gear. Saltillo tile flows throughout the first level, where you will find an open concept great room with soaring ceilings that connect the kitchen, dining, and living areas. Enjoy indoor to outdoor living from the large covered second floor patio ideal for al fresco meals, morning coffee, or watching stunning sunrises over the canal. The newly renovated primary bathroom showcases a spacious step-in tiled shower, quartz topped vanity, and elegant gold finishes. A comfortable guest bedroom and bathroom are conveniently located on the same level, with laundry in the hallway closet. Upstairs, the loft offers a third bedroom and full bathroom with plank flooring, creating a private retreat for guests or family. Your Key Colony Beach haven awaits. The City of Key Colony Beach offers its own police department, City Hall, tennis and pickleball courts, dog park, nine hole par three golf course, two playgrounds, and two new restaurants opening soon. Enjoy the walkable island lifestyle and the best of coastal living here!
Full Property Details
Full Property Details for 640 9th St
General
- Sold For: $1,310,000
- Taxes: $8,412 (2025)
- Status: Closed
- Type: Duplex
- Source: 927
- MLS ID: 617620
- Added to Site: 163 day(s) ago
Interior
- Interior Features: Cathedral Ceilings, Granite Counter Top, Smoke Alarms, Storage
- Appliances: Stainless Steel Appliance(s), Dishwasher, Dryer, Microwave, Range, Refrigerator, Washer
- Flooring: Tile
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 4
Bedrooms
- Total Bedrooms: 3
Additional Information
- Shared Amenities: Community Boat Ramp, Bike Paths, Beach, Tennis Court(s), Airport/Runway
- Pool: Yes
- Pool Description: Concrete, In Ground, Decked
- Security/Safety: Patrolled Area
Exterior
- Exterior Features: Privacy Wall/Fence
- Deck/Patio: Open Porch/Balcony, Patio
- Porch/Patio/Deck: Open Porch/Balcony, Patio
Parking
- Garage: Yes
- Attached garage: Yes
- Parking Features: Open, Covered, Carport, Attached
Location
- Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
- County: Monroe
- Subdivision: Key Colony Beach (53.5)
- Driving Directions: From US-1, turn at light onto Sadowski / KCB Causeway. Turn right onto W Ocean Dr. Turn right onto 9th Street & follow to 640 9th toward the end.
Community
- Assoc. Fees Include: None
- Pets Allowed: Yes
Heating & Cooling
- Central air: Yes
- Air Conditioning: Yes
- Cooling Type: Central Air, Ceiling Fans(s)
Structural Information
- Architectural Style: Above Flood
- Construction Status: Updated/Remodeled
- Construction: CBS
- Roof: Metal
- Windows/Doors: Impact Rstnce Window, Other Windows/Doors, Sliding Glass Doors, Shutters
- Square Feet: 1,596
- Sq. Ft. Source: Property Data Card
- Year Built: 1988
- Property Condition: Updated/Remodeled
Lot Features
- Property View: Canal
- Lot Size (Acres): 0.09
- Lot Size (Sq. Ft.): 4,125
- Lot Size Source: Property Data Card
- Lot Dimensions: 37.5 x 110
- Zoning: R-2A - Key Colony Two Family
Water Features
- Water Front: Yes
- Water View: Yes
- Water Front Desc.: Canal Front
Financial Considerations
- Tax Amount: $8,412
- Tax Year: 2025
Disclosures and Reports
- Legal Description: BK 9 SLY 1/2 LOT 39 KEY COLONY BEACH FIRST ADDN AMD PLAT PB4-11 SHELTER KEY
- Flood Zone: AE
- APN: 00075170-000100
Listed by Ocean Sotheby's International, Karen D Raspe (305) 393-9010 and Ocean Sotheby's International, Ally Kelley (727) 459-0493
Sold by Berkshire Hathaway HomeServices Keys Real Estate, Nate Bartlett
Listing agents
— 640 9th St —
Karen D Raspe
Ocean Sotheby's International
Ally Kelley
Ocean Sotheby's International
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 640 9th St
School District:Monroe County School District, Middle Torch Key, FL
| Name | Grades | Distance |
|---|---|---|
Stanley Switlik Elementary School 3400 Overseas Highway, Marathon, FL 33050 | PK-5 | 4.6 mi |
Marathon School 350 Sombrero Beach Road, Marathon, FL 33050 | 6-12 | 3.7 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 640 9th St
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- Duplex
- Active
- Updated 3 days ago
- 3Beds
- 3Total Baths
- 2,166Sq. Ft.
- Duplex
- Active
- Updated 4 days ago
- 2Beds
- 3Total Baths
- 1,176Sq. Ft.
- Duplex
- Active
- Updated 3 days ago
- 4Beds
- 4Total Baths
- 1,854Sq. Ft.
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- Single Family
- Active
- Updated 3 days ago
- 4Beds
- 5Total Baths
- 2,040Sq. Ft.
- Single Family
- Active
- Updated 2 days ago
- 3Beds
- 3Total Baths
- 2,250Sq. Ft.
- Single Family
- Active
- Updated 16 hours ago
- 3Beds
- 2Total Baths
- 1,760Sq. Ft.
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- Single Family
- Active
- Updated 5 days ago
- 2Beds
- 2Total Baths
- 960Sq. Ft.
- Single Family
- Active
- Updated 3 days ago
- 3Beds
- 4Total Baths
- 2,540Sq. Ft.
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- Duplex
- Closed
- Updated 4 days ago
- 2Beds
- 3Total Baths
- 1,256Sq. Ft.
- Duplex
- Closed
- Updated 3 days ago
- 4Beds
- 4Total Baths
- 2,293Sq. Ft.
- Duplex
- Closed
- Updated 3 days ago
- 3Beds
- 4Total Baths
- 1,830Sq. Ft.
640 9th Street, Key Colony Beach, FL 33051 (MLS# 617620) is a Duplex property that was sold at $1,310,000 on March 04, 2026. Want to learn more about 640 9th Street? Do you have questions about finding other Duplex real estate for sale in Key Colony Beach? You can browse all Key Colony Beach real estate or contact a Coldwell Banker agent to request more information.