$1,899,000

330 4th St Key Largo, FL 33037

Estimated payment $11,111/month

Total Views 595
3 Beds
3.5 Baths
2,540 Sq Ft
$748 Price per Sq Ft

Highlights

  • Popular Property
  • Boat Ramp
  • Dock made with concrete
  • Coral Shores High School Rated A
  • Beach
  • Boat Lift

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, RV, and Boat-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 amenities includes: 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!

Listing Agent

Daniel Cloud

Water Vista Realty, Inc. License #3144777 Listed on: 04/04/2026

Property Details

Home Type

  • Multi-Family

Est. Annual Taxes

  • $10,605

Year Built

  • Built in 1971 | Remodeled

Lot Details

  • 6,600 Sq Ft Lot
  • Home fronts a canal
  • Fenced

Home Design

  • Duplex
  • Frame Construction
  • Metal Roof
  • HardiePlank Siding

Interior Spaces

  • 2,540 Sq Ft Home
  • Ceiling Fan
  • Shutters
  • Blinds
  • Storage
  • Canal Views

Kitchen

  • Oven
  • Range
  • Freezer
  • Ice Maker
  • Dishwasher
  • Built-In or Custom Kitchen Cabinets

Flooring

  • Laminate
  • Tile

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Split Bedroom Floorplan

Laundry

  • Laundry Room
  • Dryer
  • Washer

Home Security

  • Monitored
  • Complete Accordion Shutters
  • Fire and Smoke Detector

Parking

  • 4 Parking Spaces
  • Open Parking
  • RV or Boat Parking

Pool

  • Heated In Ground Pool
  • Fiberglass Pool
  • Saltwater Pool
  • Pool Deck
  • Outdoor Shower

Outdoor Features

  • Seawall
  • Boat Lift
  • Dock made with concrete
  • Tennis Courts
  • Balcony
  • Patio
  • Exterior Lighting
  • Shed

Utilities

  • Central Heating and Cooling System
  • Public Hookup Available For Sewer

Listing and Financial Details

  • Homestead Exemption
  • Assessor Parcel Number 00072990-000000

Community Details

Overview

  • No Home Owners Association
  • Key Colony Beach Subdivision
  • RV Parking in Community

Recreation

  • Boat Ramp
  • Beach
  • Tennis Courts
  • Bike Trail

Pet Policy

  • Pets Allowed

Security

  • Building Security System

Property Details

Home Type

Multi-Family

Est. Annual Taxes

$10,605

Year Built

Built in 1971 | Remodeled

Lot Details

6,600 Sq Ft Lot

Listing Details

  • Property Type: Residential
  • Style: Duplex
  • First Right of Refusal: No
  • Mandatory HOA: No
  • Dockage Dock: Concrete
  • Dockage Seawall: Concrete
  • Fee Includes: None
  • Key Island: Key Colony
  • Limited Representation: No
  • Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
  • Mile Marker: 53.50
  • M L S Identifier: 20060123165453488875000000
  • Neighborhood Feature: Community Boat Ramp, Bike Paths, Other Area Features, Beach, Tennis Courts
  • Pets: Pets Allowed
  • Property Group I D: 19990816212109142258000000
  • Side: Ocean
  • State Province: FL
  • Taxes: 10604.95
  • Title: Title Ins - Buyer
  • Vehicle Storage: Open Parking, Trailer Storage, RV Parking Open
  • Vehicle Storage Cars: 4+
  • Year Built: 1971
  • Alternate Key Number: 1077062
  • Cooling Heating: Central Air, Ceiling Fans(s)
  • Lot Sq Ft: 6600.00
  • Pool Info: In Ground, Decked, Fiberglass, Salt Water
  • Pool Info Heated: Yes
  • Porch Balcony: Open Porch/Balcony, Patio
  • Shutters: Accordion, Bahama
  • Tax Exemptions: Homestead
  • Building Style Above Flood: No
  • Building Style Stories: 2 Stories
  • Estimated Living Sq Ft: 2540.00
  • Pool Info Other: Chilled
  • Financial Status Standard Sale: Yes
  • Property Condition: Updated/Remodeled
  • Sewer Hook Up: Yes
  • Statistical Purposes Only: No
  • Special Features: None
  • Property Sub Type: MultiFamily
  • Stories: 2

Interior Features

  • Interior Amenities: Drapes/Blinds Incl, Window Treatments, Storage, Smoke Alarms, Security System, Built-in Cabinets, Split Bedroom
  • Total Bathrooms: 4.00
  • Full Bathrooms: 3
  • Appliances: Washer, Ice Machine, Freezer, Oven, Range, Refrigerator, Dishwasher, Dryer
  • Floor: Tile, Laminate
  • Half Bathrooms: 1
  • Specialty Rooms: Laundry Room
  • Total Bedrooms: 3

Exterior Features

  • Dockage: Boat Lift
  • Waterfront: Canal Front
  • Waterfront: Yes
  • Construction: Frame, Hardi Board Siding
  • Exterior Features: Fencing, Storage, Shed, Outdoor Shower, Lighting
  • Roof: Metal Roof
  • Waterview: Canal View
  • Pool: Yes

Utilities

  • Security: Patrolled Area, On Premises System
  • Utilities: FKAA, Buyer to Verify, Municipal Sewer
  • Heating: Central

Lot Info

  • Deed Restrictions: No
  • Flood Zone: AE
  • Parcel Number: 00072990-000000
  • Lot Size: 60 X 110
  • Land Size: Less Than 1/4 Acre
  • Acres: 0.15

Rental Info

  • Rentals Allowed: Yes
  • Furnished: Negotiable

Tax Info

  • Tax Year: 2025

Map

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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
04/04/2026 04/04/26 For Sale $1,899,000 -- $748 / Sq Ft
Source: Florida Keys Board of REALTORS®

Purchase History

Date Type Sale Price Title Company
Warranty Deed $950,000 Attorney
Warranty Deed $256,500 --
Warranty Deed $209,000 --
Deed $67,500 --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Previous Owner $110,000 Commercial
Source: Public Records

Source: Florida Keys Board of REALTORS®

MLS Number: 619361

Florida Keys Board of REALTORS®

APN: 00072990-000000

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