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330-340 4th Street, Key Colony, FL - photo 1

$1,849,000

330-340 4th Street

Key Colony, FL 33051

Estimated payment $9,925/month

HOA not listed, not included · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr

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3Beds
4Baths
2,540Sq Ft
$728Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

Built in 1971
6,534 sqft Lot

About This Home

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, Multiple Electrical Outlets, 3 Fresh Water Spigots. House is equipped with Surge Protection, and a Transfer Switch for a portable generator. Exterior Motion Lights equipped with Security Cameras. EXCELLENT RENTAL INCOME 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, 2 RVs, and 2 Boats/Trailers 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 amenities includes a Golf Course 9 Hole Par 3, Tennis and Pickle Ball Courts, Basketball, Bocce Ball, Corn Hole, Horseshoes. Enjoy the Parks, Playgrounds, Walking and Bike pathways. Key Colony Beach, Paradise Awaits!

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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:3
  • •Bathrooms:4 (3 full, 1 half)
  • •Full bathrooms:3
  • •Half bathrooms:1

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:2,540 sqft
  • •Total interior livable area:2,540 sqft

Parking

  • •Parking features:N/A
  • •Garage spaces:0
  • •Has attached garage:No

Lot

  • •Size:6,534 sqft

Details

  • •Parcel number:N/A

Type & style

  • •Home type:Multi Family
  • •Property subtype:Residential

Materials

  • • N/A

Condition

  • •Year built:1971

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Price history

DateEventPrice
10/30/2026Listed for sale$1,849,000$728/sqft

Listing Agent

Dan Cloud

Water Vista Realty, Inc.

Brokerage Phone: 305-396-7844

Source: Florida Keys MLS · MLS #619361

Data Powered by Home Junction, Inc.

Nearby

Dining

cabana jacks

0.1 mi

El Molcajete

0.2 mi

Causeway Pizza

0.2 mi

Parks

Curry Hammock State Park

1.6 mi

Oceanfront Park

1.8 mi

Beaches

Coca Plum Beach

1.0 mi

Campground Beach

2.4 mi

Public Beach

2.5 mi

Nearby amenity locations include data © OpenStreetMap contributors.