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330-340 4th Street, Key Colony, FL 33051

New Listing
$1,899,000
Property Type: Residential Bedrooms: 3 Baths: 4 Square Footage: 2,540 Lot Size (sq. ft.): 6,600 Status: Active
Current Price: $1,899,000 List Date: 4/04/2026 Last Modified: 4/04/2026

Description

WATERFRONT BEAUTIFULLY RENOVATED DUPLEX 330-340, 2BR 2BA Upper Level, 1BR 1.5BA Lower Level, both with Full Kitchens, in Key Colony Beach, a NO HOA Municipality, on Marathon Island MM53. New 15K Lbs Boat Lift 2022, 60 Ft Deep Water Dock, Extra Wide Canal, 30-50 Amp Outlets, Fresh Water Hoses. EXCELLENT RENTAL OPPORTUNITY, 7 Day Rentals allowed. Rent the Upper and Lower units to separate parties at the same time, and or live in one and rent the other unit. Beautiful New Pool Heated-Chilled 2022, with a Saltwater system that uses a salt generator, offering lower maintenance, softer water, and reduced skin-eye irritation. New Pool-Cool Deck concrete patio in 2022, that reduces surface temperatures. Outdoor Shower. Metal Roof 2013. Hurricane Accordion and Metal Bahama Shutters in 2021. Upgraded Electrical system in 2022. Upgraded Flooring, Doors, and Windows. Mini-Split AC unit 2021. Upper Level Covered Balcony, beautiful views of the new Sparkling Pool and Boat Dock-Canal. Ample Storage, 3 large outdoor access rooms, and a shed. Excellent Parking, 12 Cars, RV or Trailer storage. Ocean side, minutes to World Class Fishing-Diving in the Gulfstream, Coffins Patch Reef, and Sombrero Reef Lighthouse. Easy Bayside access via Vaca Cut in minutes. Join the Cabana Club, steps away, for beach access and excellent dining. Key Colony Beach offers Golf, Tennis, Pickle Ball, Basketball, Bocce Ball, Corn Hole, and Horseshoes. Key Colony Beach, Paradise Awaits!

More Information MLS# 619361

Contract Information

Current Price: $1,899,000 Listing Date: 2026-04-04 Listing Board: Florida Keys List Price: $1,899,000

Location Tax Legal

Street #: 330-340 Street Name: 4th 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

General Property Description

Realtor.COM Type: Multi-family Style: Duplex Waterfront: Yes Control Depth: 4 Pool: Yes Year Built: 1971 Lot Size: 60 X 110 Lot SqFt: 6600 Acres: 0.15 Living Apx SqFt: 2540 SqFt Source: Tax Records Total Bedrooms: 3 Full Baths: 3 Half Baths: 1 Total Baths: 4 Rentals Allowed: Yes

Status Change Info

Status: Active

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No

Dockage

Dock Length: 60 Dock: Concrete Seawall: Concrete

Building Style

Above Flood: No Stories: 2 Stories

Vehicle Storage

Car(s): 4+

Pool Info

Other: Chilled Heated: Yes

Financial Status

Standard Sale: Yes

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: Canal Front Waterview: Canal View Dockage: Boat Lift Property Condition: Updated/Remodeled Vehicle Storage: Open Parking; RV Parking Open; Trailer Storage Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: Buyer to Verify; FKAA; Municipal Sewer Interior Features: Built-in Cabinets; Drapes/Blinds Incl; Smoke Alarms; Split Bedroom; Storage; Window Treatments Specialty Rooms: Laundry Room Appliances: Dishwasher; Dryer; Freezer; Ice Machine; Oven; Range; Refrigerator; Washer Exterior Features: Fencing; Lighting; Outdoor Shower; Shed; Storage Pool Info: In Ground; Salt Water; Fiberglass; Decked Construction: Frame; Hardi Board Siding Shutters: Accordion; Bahama Floor: Laminate; Tile Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Beach; Bike Paths; Community Boat Ramp; Tennis Courts; Other Area Features Security: Patrolled Area Land Size: Less Than 1/4 Acre Terms: Cash; Conventional Title: Title Ins - Buyer
Listing Office: Water Vista Realty, Inc.
Last Updated: April - 04 - 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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