• Home
  • 280/290 3rd Street, Key Colony, FL 33051 (MLS# 619093)

280/290 3rd Street, Key Colony, FL 33051

$1,550,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 1,536 Lot Size (sq. ft.): 6,600 Status: Active
Current Price: $1,550,000 List Date: 3/16/2026 Last Modified: 3/25/2026

Description

Turnkey Raised Duplex in Key Colony Beach - Strong Rental Income or Ideal Family Vacation Property Fully furnished 2BR/2BA (per side) duplex located in the desirable Key Colony Beach community. The property is currently operating as a successful short-term rental, plus the vacation rental license was recently renewed so inspection should be easy, allowing a new owner to continue renting quickly. For buyers looking for a personal getaway, the layout is also ideal as a family vacation property, offering two separate living spaces that allow families or groups to stay close together while still having privacy. New owners can immediately obtain Cabana Club membership, which provides private beach access, pool, and hot tub, and is a major driver for vacation rental bookings in the area. The property is also walkable to restaurants and ocean-view bars. The duplex was fully remodeled in 2021, including new plumbing, flooring, AC system, and interior and exterior paint. Additional updates through 2024-2026 include impact windows and doors, updated ductwork, roof improvements, new drywall in one unit, new washer and dryer, grills, and water heaters, making the property well-maintained and move-in or rental ready. A large outdoor seating area and yard provide space for guests or family to gather, making it especially attractive for groups renting or using both sides of the duplex. Fully furnished and turnkey for immediate use or continued rental income.

More Information MLS# 619093

Contract Information

Listing Board: Florida Keys As is Rght to Inspct: Yes Current Price: $1,550,000 Listing Date: 2026-03-10 List Price: $1,550,000

Location, Tax & Legal

City: KEY COLONY Mile Marker: 53.5 Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca) Side: Ocean Alternate Key #: 00072620-000000 Parcel #: 00072600-000000 Zoning: R-2B - Key Colony Two Family Deed Restrictions: Yes Taxes: 7779.39 Tax Year: 2025 Pub Sewer HkUp: Yes Street #: 280/290 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

General Property Description

Realtor.COM Type: Multi-family Waterfront: No Control Depth: 0 Lot Size: .15 acers Lot SqFt: 6600 Pool: No Lot Sqft Source: Property Data Card Total Units: 2 Acres: 0.15 SqFt Source: Property Data Card Rentals Allowed: Yes Style: Duplex Year Built: 1988 Living Apx SqFt: 1536 Total Bedrooms: 4 Full Baths: 4 Total Baths: 4

Remarks & Misc

Remarks – Consumer: Turnkey Raised Duplex in Key Colony Beach - Strong Rental Income or Ideal Family Vacation Property Fully furnished 2BR/2BA (per side) duplex located in the desirable Key Colony Beach community. The property is currently operating as a successful short-term rental, plus the vacation rental license was recently renewed so inspection should be easy, allowing a new owner to continue renting quickly. For buyers looking for a personal getaway, the layout is also ideal as a family vacation property, offering two separate living spaces that allow families or groups to stay close together while still having privacy. New owners can immediately obtain Cabana Club membership, which provides private beach access, pool, and hot tub, and is a major driver for vacation rental bookings in the area. The property is also walkable to restaurants and ocean-view bars. The duplex was fully remodeled in 2021, including new plumbing, flooring, AC system, and interior and exterior paint. Additional updates through 2024-2026 include impact windows and doors, updated ductwork, roof improvements, new drywall in one unit, new washer and dryer, grills, and water heaters, making the property well-maintained and move-in or rental ready. A large outdoor seating area and yard provide space for guests or family to gather, making it especially attractive for groups renting or using both sides of the duplex. Fully furnished and turnkey for immediate use or continued rental income. Directions: From Overseas Hwy (US-1) turn onto Sadowski Causeway into Key Colony Beach, go over the bridge, turn left on W Ocean Drive, then right on 3rd Street and continue to 280 3rd St.

Association Info

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

Fee Includes

None: 1

Dockage

None: 1

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Freezer: 1 Ice Machine: 1 Microwave: 1 Oven: 1 Range: 1 Refrigerator: 1 Stainless Steel Appliance(s): 1 Washer: 1 Water Softener: 1

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1

Waterfront

None: 1

Waterview

No Waterview: 1

Floor

Laminate: 1

Neighborhood Feature

Beach: 1 Community Boat Ramp: 1 Community Pool: 1 Spa: 1 Tennis Courts: 1

Interior Features

Built-in Cabinets: 1 Smoke Alarms: 1

Building Style

Above Flood: Yes Stilt Column Height: Tall - 10Ft & Over Stories: 2 Stories

Windows/Doors

Impact Rstnce Window: 1 Other Windows/Doors: 1

Vehicle Storage

Car(s): 4+ Carport: 1 Covered Parking: 1 Guest Parking: 1 Attached: 1 Off Street Parking: 1 Trailer Storage: 1

Construction

Concrete: 1 Stucco: 1

Land Size

Less Than 1/4 Acre: 1

Furnished

Furnished: 1

Terms

Cash: 1 Conventional: 1 VA: 1

Utilities

Cable Available: 1 FKAA: 1 Municipal Sewer: 1

Porch/Balcony

Open Porch/Balcony: 1 Patio: 1

Title

Negotiable: 1

Exterior Features

Lighting: 1 Rain Gutters: 1 Storage: 1

Roof

Metal Roof: 1

Financial Status

Standard Sale: Yes

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: None Waterview: No Waterview Dockage: None Vehicle Storage: Carport; Attached; Covered Parking; Guest Parking; Off Street Parking; Trailer Storage Furnished: Furnished Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: Cable Available; FKAA; Municipal Sewer Interior Features: Built-in Cabinets; Smoke Alarms Appliances: Dishwasher; Disposal; Dryer; Freezer; Ice Machine; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Water Softener Exterior Features: Lighting; Rain Gutters; Storage Construction: Concrete; Stucco Floor: Laminate Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Beach; Community Boat Ramp; Community Pool; Spa; Tennis Courts Land Size: Less Than 1/4 Acre Terms: Cash; Conventional; VA Title: Negotiable

Room Information

Bedroom 1 Level: Second Bedroom 2 Level: Second Bedroom 3 Level: Second Bedroom 4 Level: Second Full Bathroom Level: Second Full Bathroom Level: Second Full Bathroom Level: Second Full Bathroom Level: Second
Listing Office: Birch Haven Real Estate
Last Updated: March - 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.

Let’s Connect

      Sign Up for Listing Alerts