310 3rd Street, Key Colony, FL 33051

$599,000

Property Type: Residential Bedrooms: 2 Baths: 2 Square Footage: 1,031 Lot Size (sq. ft.): 3,300 Status: Active

Current Price: $599,000 List Date: 7/13/2026 Last Modified: 7/25/2026

Overview

Description

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-b ... (Read more)

Listing Details MLS# 620613

Location, Tax & Legal

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
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

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Species List: No

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Half Duplex
Waterfront: No
Pool: No
Year Built: 1982
Lot SqFt: 3300
Acres: 0.08
Living Apx SqFt: 1031
SqFt Source: Property Data Card
Total Bedrooms: 2
Full Baths: 2
Total Baths: 2
Rentals Allowed: Yes
Min Rental Days: 7
Control Depth: 0
Total Units: 0

Association Info

Mandatory Home Owners Asc: No
1st Right of Refusal: No
Association Fee $: 0

Building Style

Above Flood: Unknown

More Information

Vehicle Storage

Car(s): 4+
Covered Parking: Yes
Open Parking: Yes

Remarks & Misc

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.

Fee Includes

None: Yes

Dockage

None: Yes

Tax Exemptions

None: Yes

Appliances

Dishwasher: Yes
Dryer: Yes
Microwave: Yes
Oven: Yes
Refrigerator: Yes
Washer: Yes

Pets

Pets Allowed: Yes

Cooling

Central Air: Yes

Waterfront

None: Yes

Waterview

No Waterview: Yes

Floor

Laminate: Yes
Tile: Yes

Interior Features

Drapes/Blinds Incl: Yes
Granite Counter Top: Yes
Storage: Yes
Walk-in Closet(s): Yes

Specialty Rooms

Laundry Room: Yes
Other: Yes

Windows/Doors

Impact Rstnce Window: Yes

Construction

CBS: Yes

Land Size

Less Than 1/4 Acre: Yes

Furnished

Negotiable: Yes

Utilities

Buyer to Verify: Yes
FKAA: Yes

Porch/Balcony

Open Porch/Balcony: Yes

Exterior Features

Rain Gutters: Yes
Shed: Yes
Storage: Yes

Roof

Metal Roof: Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: None Waterview: No Waterview Dockage: None Vehicle Storage: Covered Parking; Open Parking Furnished: Negotiable Cooling: Central Air 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 Construction: CBS Floor: Laminate; Tile Roof: Metal Roof Pets: Pets Allowed Land Size: Less Than 1/4 Acre

Listing Office: Florida Keys Real Estate Group

Last Updated: July - 25 - 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.

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