$2,845,000
Price decreased by $150,000 on Oct 05, 2026

Duplex In Key Colony

  • 7 Beds
  • 7 Baths
  • 4,478 Sqft
  • 8,250 Sqft lot
  • Updated: October 5
  • Source:
    Key West Association of REALTORS  MLS#617788

About the Property

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
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.
…
  • Property type

    House

  • Floors

    2

  • Year built

    1985

  • Price/sqft

    $635

Features

  • Waterfront
  • Pool
  • Garage
  • Tennis Court
  • Game Room
  • Duplex
  • Laundry Room
  • Outdoor Living Space
  • Privacy
Features

Lot

  • Waterfront
  • Privacy
  • Duplex

Indoor

  • Bar
  • Laundry Room
  • Game Room

Outdoor

  • Balcony
  • Parking
  • Pool
  • Garage
  • Tennis Court
  • Outdoor Living Space

Explore the Area

580 & 590 10th Street, Marathon, Florida, United States View on Google Maps
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Berkshire Hathaway HomeServices Keys Real Estate - Marathon

Joined 7 months ago
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Berkshire Hathaway HomeServices Keys Real Estate - Marathon
Florida, United States
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10
Listings
2026
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Berkshire Hathaway HomeServices Keys Real Estate - Marathon
Marathon, Florida, United States
View agency profile
Last updated
October 5
First listed
March 25
Listing reference
617788
Listing status
Active under contract
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