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580 & 590 10th Street, Key Colony, FL 33051
$3,395,000
Property Type:
Residential
Bedrooms:
7
Baths:
7
Square Footage:
4,478
Lot Size (sq. ft.):
8,250
Status:
Active
Current Price:
$3,395,000
List Date:
12/22/2025
Last Modified:
2/08/2026
Description
Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests, or vacation rental use. The main living space welcomes you with a dramatic two-story entry, an open-concept great room, multiple dining areas, wet bar, and a well-appointed kitchen that flows to a waterside balcony. The lower-level unit features its own open living and kitchen area, providing privacy and versatility. Four bedrooms are ensuite, complemented by 2 primary suites overlooking the water. Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint, adding peace of mind and refreshed curb appeal. Mediterranean-inspired design elements are carried throughout, along with impact windows and doors, multiple balconies, and inviting indoor-outdoor living spaces. Outside, enjoy a heated pool, spa, covered poolside lanai, and 75 feet of concrete dockage with quick boating access to both the Atlantic Ocean and the Gulf of America. Additional features include a two-car garage and ample off-street parking.
This property has a strong, established vacation rental history and is currently an active rental.
More Information MLS# 617788
Contract Information
Current Price: $3,395,000
Listing Date: 2025-12-22
Listing Board: Marathon/Lower Keys
List Price: $3,395,000
As is Rght to Inspct: Yes
Location Tax Legal
Street #: 580 & 590
Street Name: 10th
Street Suffix: Street
Key/Island: Key Colony
State/Province: FL
Zip Code: 33051
County: Monroe
Subdivision: Key Colony Bch 1st Addn Amd Plat (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: 5
Pool: Yes
Year Built: 1985
Lot SqFt: 8250
Lot Sqft Source: Tax Records
Living Apx SqFt: 4478
SqFt Source: Property Data Card
Total Bedrooms: 7
Full Baths: 7
Total Baths: 7
Rentals Allowed: Yes
Min Rental Days: 7
Status Change Info
Status: Active
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Dockage
Dock Length: 75
Dock: Concrete
Building Style
Above Flood: Unknown
Stories: 2 Stories
Pool Info
Heated: Yes
Property Features
Fee Includes: None
Tax Exemptions: None
Waterfront: Canal Front
Waterview: Canal View
Vehicle Storage: Garage; Guest Parking; Off Street Parking
Cooling: Ceiling Fans(s); Central Air
Utilities: Buyer to Verify; Elect Separate Meter; FKAA; Municipal Sewer
Interior Features: Built-in Cabinets; Drapes/Blinds Incl; Entrance Foyer; Granite Counter Top; Smoke Alarms; Wet Bar; Window Treatments
Specialty Rooms: Laundry Room
Appliances: Dishwasher; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features: Fencing; Hot Tub; Lanai; Lighting; Outdoor Shower; Storage
Pool Info: In Ground
Construction: CBS
Floor: Carpet; Tile
Roof: Metal Roof
Pets: Pets Allowed
Neighborhood Feature: Beach; Bike Paths; Tennis Courts
Security: Patrolled Area
Land Size: Less Than 1/4 Acre
Title: Title Ins - Buyer
Listing Office: Berkshire Hathaway HomeServices Keys Real Estate
Last Updated: February - 08 - 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.
