KAROL MARSDEN, PA 305-395-1975 karolrealtor@gmail.com
280/290 3rd Street, Key Colony, FL 33051
$1,495,000
Property Type:
Residential
Bedrooms:
4
Baths:
4
Square Footage:
1,536
Lot Size (sq. ft.):
6,600
Status:
Active
Current Price:
$1,495,000
List Date:
3/16/2026
Last Modified:
7/13/2026
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: $1,495,000
Listing Date: 2026-03-10
List Price: $1,495,000
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: July - 13 - 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.