310 3rd Street
Key Colony, FL 33051
MLS# 620613
2 beds | 2 baths | 1031 sqft
Open House (07/24/2026 - 11:00 am - 1:00 pm)
Property DescriptionBeautifully updated and move-in ready, this elevated Key Colony Beach half duplex is the perfect blend of island charm, comfort, and value! Step inside to a bright, inviting main living area featuring an updated kitchen with stunning new granite countertops, creating the ideal space for gathering with family and friends. Priced at just $599,000, this is one of the best opportunities to own in one of the Florida Keys' most desirable waterfront communities.
Offering 2 bedrooms, 2 bathrooms, and 1,031 square feet of living space, this home also features a brand-new metal roof for added peace of mind. The spacious primary suite includes a walk-in closet and a private balcony overlooking the backyard--the perfect place to sip your morning coffee or relax in the evening while enjoying the tropical breeze.
The expansive lower-level living and entertaining area provides the ultimate bonus space to unwind after a day on the water, watch the game, host friends, or simply embrace the laid-back Keys lifestyle. The generous backyard provides plenty of space to design your own private tropical oasis--add a pool, lush landscaping, or an outdoor kitchen to create the Florida Keys retreat you've always imagined.
Location is everything, and this home delivers! Just steps from the Cabana Club, waterfront parks, pickleball and tennis courts, playgrounds, golf, restaurants, walking paths, and all the amenities that make Key Colony Beach one of the most sought-after communities in the Florida Keys.
Whether you're searching for a full-time residence, a vacation escape, or an investment property, this home offers an unbeatable combination of location, exceptional value, and lifestyle. Don't miss your chance to own your slice of paradise at an incredible price!
Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Species List: No
Current Price: $599,000
Listing Date: 2026-07-13
List Price: $599,000
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 #: 1076643
Parcel #: 00072590-000000
Zoning: R-1A - Key Colony Single Family
Deed Restrictions: No
Legal: BK 2 N 1/2 LT 31 KEY COLONY BEACH PB3-120 SHELTER KEY
Taxes: 4709.55
Tax Year: 2025
Pub Sewer HkUp: Yes
Street #: 310
Street Name: 3rd
Street Suffix: Street
Key/Island: Key Colony
State/Province: FL
Zip Code: 33051
County: Monroe
Subdivision: Key Colony Beach (53.5)
Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
Realtor.COM Type: Residential - Single Family
Waterfront: No
Control Depth: 0
Lot Size: 30 X 110
Total Units: 0
Acres: 0.08
SqFt Source: Property Data Card
Rentals Allowed: Yes
Min Rental Days: 7
Style: Half Duplex
Year Built: 1982
Living Apx SqFt: 1031
Total Bedrooms: 2
Full Baths: 2
Remarks – Consumer: Beautifully updated and move-in ready, this elevated Key Colony Beach half duplex is the perfect blend of island charm, comfort, and value! Step inside to a bright, inviting main living area featuring an updated kitchen with stunning new granite countertops, creating the ideal space for gathering with family and friends. Priced at just $599,000, this is one of the best opportunities to own in one of the Florida Keys' most desirable waterfront communities.
Offering 2 bedrooms, 2 bathrooms, and 1,031 square feet of living space, this home also features a brand-new metal roof for added peace of mind. The spacious primary suite includes a walk-in closet and a private balcony overlooking the backyard--the perfect place to sip your morning coffee or relax in the evening while enjoying the tropical breeze.
The expansive lower-level living and entertaining area provides the ultimate bonus space to unwind after a day on the water, watch the game, host friends, or simply embrace the laid-back Keys lifestyle. The generous backyard provides plenty of space to design your own private tropical oasis--add a pool, lush landscaping, or an outdoor kitchen to create the Florida Keys retreat you've always imagined.
Location is everything, and this home delivers! Just steps from the Cabana Club, waterfront parks, pickleball and tennis courts, playgrounds, golf, restaurants, walking paths, and all the amenities that make Key Colony Beach one of the most sought-after communities in the Florida Keys.
Whether you're searching for a full-time residence, a vacation escape, or an investment property, this home offers an unbeatable combination of location, exceptional value, and lifestyle. Don't miss your chance to own your slice of paradise at an incredible price!
Directions: US 1 to Sadowski to E Ocean Dr. to 3rd St.
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Drapes/Blinds Incl: 1
Granite Counter Top: 1
Storage: 1
Walk-in Closet(s): 1
Car(s): 4+
Covered Parking: 1
Buyer to Verify: 1
FKAA: 1
Vehicle Storage: Covered Parking; Open Parking
Utilities: Buyer to Verify; FKAA
Interior Features: Drapes/Blinds Incl; Granite Counter Top; Storage; Walk-in Closet(s)
Specialty Rooms: Laundry Room; Other
Appliances: Dishwasher; Dryer; Microwave; Oven; Refrigerator; Washer
Exterior Features: Rain Gutters; Shed; Storage
Land Size: Less Than 1/4 Acre
Listing Office: Florida Keys Real Estate Group
Last Updated: July - 22 - 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.