651 9th Street
Key Colony, FL 33051
MLS# 618394
2 beds | 3 baths | 1176 sqft
Open House (02/08/2026 - 11:00 am - 2:00 pm)
Property DescriptionThis exceptional waterfront residence in Key Colony Beach offers the perfect blend of refined comfort, thoughtful design, and effortless island living. Lovingly owned, gently used, and never rented, the home reflects true pride of ownership throughout. An elevator, updated kitchen, and custom baths set the stage, while soaring wood ceilings and an open-concept kitchen, dining, and living area create a light-filled space that flows seamlessly through stackable sliders to a spacious screened porchâ€''ideal for entertaining or unwinding in the coastal breeze. The generous primary suite is a private retreat with porch access and a skylit spa-style bath featuring a jetted tub, walk-in tiled shower, and dual vanities. The lower level is designed for true indoor-outdoor living, featuring an custom, inground swimming pool surrounded by elegant marble decking, along with expansive covered and uncovered paved patios. Mature tropical landscaping enhances privacy, while ample covered and uncovered parking adds everyday convenience. Boaters will love the 37.5-foot dock with boat lift, located on a wide, deep canal with quick, easy access, just minutes to both the open ocean and the Gulf via Vaca Cut. A permitted third full bathroom on the lower level sits next to a large air-conditioned storage area with sliders directly to the patio and dock, making it ideal as an angler's room for fishing gear and water toys. Key Colony Beach is one of the Florida Keys' most desirable island communities, known for its wide, walkable streets, city-maintained infrastructure, and relaxed coastal charm. Residents enjoy access to marinas, a nine-hole golf course, tennis and pickleball courts, playgrounds, dining, and waterfront Sunset Park all just steps or a short bike ride away. Perfectly positioned in the Middle Keys, Key Colony Beach offers a rare combination of small-town island living, world-class boating, and easy access to Marathon's shopping, dining, and local airport.
Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Species List: No
Current Price: $1,495,000
Listing Date: 2026-01-30
List Price: $1,495,000
City: KEY COLONY
Off Shore Island: No
Mile Marker: 53.5
Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
Side: Ocean
Flood Zone: AE
Alternate Key #: 1081329
Parcel #: 00075730-000000
Zoning: R-2A - Key Colony Two Family
Deed Restrictions: Unknown
Legal: BLK 10 N 1/2 LOT 28 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB4-11 SHELTER KEY
Taxes: 9607.1
Tax Year: 2025
Pub Sewer HkUp: Yes
Street #: 651
Street Name: 9th
Street Suffix: Street
Key/Island: Key Colony
State/Province: FL
Zip Code: 33051
County: Monroe
Subdivision: Key Colony Bch 1st Addn Amd Plat (53.5)
Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
Realtor.COM Type: Residential - Single Family
Waterfront: Yes
Control Depth: 5
Lot Size: 37.5 X 110
Lot Sqft Source: Property Data Card
Total Units: 0
Acres: 0.1
SqFt Source: Property Data Card
Rentals Allowed: Yes
Min Rental Days: 7
Style: Half Duplex
Year Built: 1989
Living Apx SqFt: 1176
Total Bedrooms: 2
Full Baths: 3
Total Baths: 3
Remarks – Consumer: This exceptional waterfront residence in Key Colony Beach offers the perfect blend of refined comfort, thoughtful design, and effortless island living. Lovingly owned, gently used, and never rented, the home reflects true pride of ownership throughout. An elevator, updated kitchen, and custom baths set the stage, while soaring wood ceilings and an open-concept kitchen, dining, and living area create a light-filled space that flows seamlessly through stackable sliders to a spacious screened porchâ€''ideal for entertaining or unwinding in the coastal breeze. The generous primary suite is a private retreat with porch access and a skylit spa-style bath featuring a jetted tub, walk-in tiled shower, and dual vanities. The lower level is designed for true indoor-outdoor living, featuring an custom, inground swimming pool surrounded by elegant marble decking, along with expansive covered and uncovered paved patios. Mature tropical landscaping enhances privacy, while ample covered and uncovered parking adds everyday convenience. Boaters will love the 37.5-foot dock with boat lift, located on a wide, deep canal with quick, easy access, just minutes to both the open ocean and the Gulf via Vaca Cut. A permitted third full bathroom on the lower level sits next to a large air-conditioned storage area with sliders directly to the patio and dock, making it ideal as an angler's room for fishing gear and water toys. Key Colony Beach is one of the Florida Keys' most desirable island communities, known for its wide, walkable streets, city-maintained infrastructure, and relaxed coastal charm. Residents enjoy access to marinas, a nine-hole golf course, tennis and pickleball courts, playgrounds, dining, and waterfront Sunset Park all just steps or a short bike ride away. Perfectly positioned in the Middle Keys, Key Colony Beach offers a rare combination of small-town island living, world-class boating, and easy access to Marathon's shopping, dining, and local airport.
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
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Dock Length: 37
Dock: Wood
Boat Lift: 1
Seawall: Concrete
Stainless Steel Appliance(s): 1
Washer: 1
Ceiling Fans(s): 1
Central Air: 1
Bike Paths: 1
Tennis Courts: 1
Built-in Cabinets: 1
Cathedral Ceilings: 1
Dade County Pine: 1
Drapes/Blinds Incl: 1
Elevator: 1
Granite Counter Top: 1
Smoke Alarms: 1
Split Bedroom: 1
Storage: 1
Walk-in Closet(s): 1
Whirlpool Bath Tub: 1
Window Treatments: 1
Above Flood: Yes
Stilt Column Height: Medium - 5Ft - 9Ft
Single Hung Windows: 1
Sliding Glass Doors: 1
Carport: 1
Covered Parking: 1
Guest Parking: 1
RV Parking Open: 1
Off Street Parking: 1
Trailer Storage: 1
Furnished: 1
Negotiable: 1
Buyer to Verify: 1
Cable Available: 1
Community Swr Plant: 1
Elect Separate Meter: 1
FKAA: 1
Water Separate Meter: 1
Open Porch/Balcony: 1
Screened P/B: 1
Vehicle Storage: Carport; Covered Parking; Guest Parking; Off Street Parking; RV Parking Open; Trailer Storage
Furnished: Furnished; Negotiable
Cooling: Ceiling Fans(s); Central Air
Utilities: Buyer to Verify; Cable Available; Community Swr Plant; Elect Separate Meter; FKAA; Water Separate Meter
Interior Features: Built-in Cabinets; Cathedral Ceilings; Dade County Pine; Drapes/Blinds Incl; Elevator; Granite Counter Top; Smoke Alarms; Split Bedroom; Storage; Walk-in Closet(s); Whirlpool Bath Tub; Window Treatments
Appliances: Dishwasher; Disposal; Dryer; Microwave; Range; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features: Fencing; Lighting
Pool Info: In Ground; Decked
Neighborhood Feature: Airstrip; Beach; Bike Paths; Tennis Courts
Land Size: Less Than 1/4 Acre
Listing Office: Ocean Sotheby's International
Last Updated: February - 05 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.