Turn-Key Duplex on a Wide, Deep Canal - Key Colony Beach
Welcome to one of the most sought-after settings in the Florida Keys -Key Colony Beach -- a private, tucked-away island community known for its quiet streets, boater-friendly waterways, and true Keys lifestyle. This full duplex sits on a impressively wide, clean, deep canal (100 ft across), offering easy access for boats of all sizes and some of the best water views in the neighborhood.
Each side of the duplex mirrors the other in quality and layout: upstairs you'll find 2 spacious bedrooms and 2 full baths, while downstairs offers a convenient pool bath plus a bonus game room/flex space with extra storage -- perfect for kayaks, fishing gear, or beach toys. Both units have been tastefully updated and fully furnished, right down to the dishes, pots, pans, and bedding. Just bring your suitcase.
This property is as flexible as it is beautiful. Rent both sides for strong dual-income potential, create the ultimate family compound with room for everyone, or live in one side while renting the other for built-in income. However you use it, you're getting two turn-key homes in one of the safest, most tranquil pockets of the Florida Keys.
Located just minutes from open water, world-class fishing, and the laid-back charm Key Colony Beach is known for -- this is Keys living at its most effortless.
Two homes. One incredible canal. Endless possibilities.
SELLING ONLY AS DUPLEX - will not split them
Contact Dawn McComish, P.A. -- The Singing Realtor® -- for a private showing.
For sale
$3,200,000
321 & 331 9th St, Key Colony Beach, FL 33051
4beds
3,080sqft
Duplex
Built in 1988
-- sqft lot
$2,961,100 Zestimate®
$1,039/sqft
$-- HOA
What's special
Convenient pool bath
- 24 days
- 372
- 18
Zillow last checked:
Listing updated:
Listed by:
Dawn M McComish 305-395-3300,
LPT Realty, LLC
Source: FLKMLS,MLS#: 621036
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 6
- Full bathrooms: 4
- 1/2 bathrooms: 2
Cooling
- Central Air
Appliances
- Included: Washer, Dryer, Dishwasher, Refrigerator, Oven, Microwave, Stainless Steel Appliance(s)
Features
- Sun/Florida Room
- Flooring: Tile, Laminate
- Furnished: Yes
Interior area
- Total structure area: 3,080
- Total interior livable area: 3,080 sqft
Video & virtual tour
Property
Parking
- Parking features: RV Access/Parking, Storage
- Has garage: Yes
Features
- Exterior features: Storage
- Has private pool: Yes
- Pool features: In Ground, Fiberglass, Decked
- On waterfront: Yes
Lot
- Size: 8,250 Square Feet
Details
- Additional parcels included: 00075560-000100
- Parcel number: 00075560000000
- Zoning: R-2A - Key Colony Two Family
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Duplex
Materials
- CBS
Condition
- Updated/Remodeled
- New construction: No
- Year built: 1988
Utilities & green energy
- Utilities for property: Water Separate Meter, Elect Separate Meter, Cable Available
Community & HOA
Community
- Features: Bike Paths
- Security: Security Guard
- 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: $1,039/sqft
- Annual tax amount: $13,968
- Date on market: 8/20/2026
- Listing terms: No Seller Finance,Cash,Conventional,FHA
Estimated market value
$2,961,100
$2.81M - $3.11M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 8/20/2026 | Listed for sale | $3,200,000$1,039/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment





