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!
Under contract
$1,400,000
640 9th St, Key Colony Beach, FL 33051
3beds
1,596sqft
Est.:
Half Duplex, Single Family Residence
Built in 1988
3,920.4 Square Feet Lot
$1,338,300 Zestimate®
$877/sqft
$-- HOA
What's special
East facing waterfrontStilted half duplexFour bathroomsMetal roofThree bedroomsHeated and chilled poolAir conditioned cabana room
- 60 days |
- 543 |
- 8 |
Zillow last checked: 8 hours ago
Listing updated: February 04, 2026 at 02:13am
Listed by:
Karen D Raspe 305-393-9010,
Ocean Sotheby's International,
Ally Kelley 727-459-0493,
Ocean Sotheby's International
Source: FLKMLS,MLS#: 617620
Originating MLS: Marathon/Lower Keys
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 4
- Full bathrooms: 4
Cooling
- Central Air, Ceiling Fans(s)
Appliances
- Included: Washer, Stainless Steel Appliance(s), Microwave, Range, Refrigerator, Dishwasher, Dryer
Features
- Cathedral Ceiling(s), Granite Counters, Storage
- Flooring: Tile
- Doors: Sliding Glass Doors
- Windows: Impact Rstnce Window, Other Windows/Doors, Accordion
- Furnished: Yes
Interior area
- Total interior livable area: 1,596 sqft
Property
Parking
- Total spaces: 1
- Parking features: Garage, RV Parking Open, Covered, Trailer Storage, Open, Attached, Carport
- Has garage: Yes
- Has carport: Yes
- Has uncovered spaces: Yes
Features
- Patio & porch: Open Porch/Balcony, Patio
- Has private pool: Yes
- Pool features: In Ground, Decked, Concrete
- Fencing: Privacy
- Has view: Yes
- View description: Canal
- Has water view: Yes
- Water view: Canal
- Waterfront features: Canal Front, Waterfront, Seawall: Concrete, Dock: Wood, Dock Length: 375
Lot
- Size: 3,920.4 Square Feet
- Dimensions: 37.5 x 110
- Features: Less Than 1/4 Acre
Details
- Parcel number: 00075170000100
- Zoning: R-2A
- Zoning description: Key Colony Two Family
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Half Duplex, Single Family Residence
- Attached to another structure: Yes
Materials
- CBS
- Roof: Metal
Condition
- Updated/Remodeled
- New construction: No
- Year built: 1988
Utilities & green energy
- Sewer: Community Swr Plant, Public Sewer
- Utilities for property: FKAA, Cable Available, Buyer to Verify, Cable Connected
Community & HOA
Community
- Features: Community Boat Ramp, Bike Paths, Airport/Runway, Beach, Tennis Court(s)
- Security: Smoke Detector(s), Patrolled Area
- Subdivision: Key Colony Beach (53.5)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Key Colony Beach
Financial & listing details
- Price per square foot: $877/sqft
- Tax assessed value: $880,727
- Annual tax amount: $8,412
- Date on market: 12/6/2025
Estimated market value
$1,338,300
$1.27M - $1.41M
$5,870/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 1/23/2026 | Contingent | $1,400,000$877/sqft |
Source: | ||
| 12/6/2025 | Listed for sale | $1,400,000+3.6%$877/sqft |
Source: | ||
| 6/10/2022 | Sold | $1,352,000$847/sqft |
Source: | ||
| 4/17/2022 | Contingent | $1,352,000$847/sqft |
Source: | ||
| 4/16/2022 | Listed for sale | $1,352,000+145.8%$847/sqft |
Source: | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,762 -2.3% | $880,727 +0.1% |
| 2024 | $8,972 -1.1% | $879,992 -0.9% |
| 2023 | $9,068 +33.6% | $888,245 +45.2% |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$8,415/mo
Principal & interest
$6968
Property taxes
$957
Home insurance
$490
Climate risks
Neighborhood: 33051
Nearby schools
GreatSchools rating
- 4/10Stanley Switlik Elementary SchoolGrades: PK-5Distance: 4.6 mi
- 5/10Marathon SchoolGrades: 6-12Distance: 3.7 mi
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