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Key Colony Beach, FL Duplexes for Sale

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Waterfront Home in Key Colony Beach
$2,750,000
3,248 SF

Waterfront Home in Key Colony Beach

581 10 St, Key Colony Beach, FL 33051

6-bedroom, 4-bath waterfront home with pool and dock.

  • Waterfront property with a 75' concrete dock on a 100' wide canal for quick ocean access.
  • Located in Key Colony Beach, enjoy upscale coastal living with beaches, golf, tennis, and more.
  • Updated with new impact doors and windows and a metal roof installed in 2023.
  • 6 Bedroom, 4 Bath, 3,248 sq. ft. home with a waterfront pool.
  • Zoned for duplex; convert with modifications.
Updated: Jan 6
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Canal-Front Duplex with Rental History
$3,650,000
4,478 SF

Canal-Front Duplex with Rental History

580 10 St, Key Colony Beach, FL 33051

7-bedroom duplex with rental history and waterfront access.

  • Canal‑front property with 75 feet of concrete dockage and quick boating access to the Atlantic Ocean and the Gulf of Mexico.
  • Legal duplex with interior lockout offers flexibility as a single‑family home or two separate living spaces (5BR/4BA main residence and 2BR/2BA guest wing).
  • Proven income potential with a strong, established vacation rental history and currently an active rental.
  • Heated pool, spa, and covered poolside lanai create an inviting indoor‑outdoor living space.
  • Recent upgrades include complete concrete spalling repairs and fresh exterior repaint.
Updated: Jan 8
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Waterfront Retreat in Key Colony
$865,000
1,040 SF

Waterfront Retreat in Key Colony

2-bedroom, 2-bath waterfront property with private docks and bay views.

47 Sadowski, Key Colony Beach, FL 33051
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Furnished Duplex with Dockage
$1,943,000
2,528 SF

Furnished Duplex with Dockage

Turnkey duplex with rental income potential and deep water dockage.

461 3 St, Key Colony Beach, FL 33051
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Based on your search, we've compiled 8 Potential Opportunities for your consideration. Besides 4 Active listings in Key Colony Beach, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

Explore Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Multifamily Complex in Marathon, Florida
$1,800,000
3,017 SF

Multifamily Complex in Marathon, Florida

Multifamily complex with redevelopment potential in a high-demand location.

13755 Overseas Hwy, Marathon, FL 33050
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Renovated Duplex on Deep Water
$1,700,000
1,854 SF

Renovated Duplex on Deep Water

Turnkey duplex in Marathon with ocean access and rental income.

574-576 99 St, Marathon, FL 33050
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Canal Front Duplex in Florida
$899,000
1,460 SF

Canal Front Duplex in Florida

Duplex with canal access, ideal for investment or personal use.

31034 Hollerich Dr, Big Pine Key, FL 33043
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Income-Producing Duplex in Big Pine
$799,000
1,924 SF

Income-Producing Duplex in Big Pine

CBS duplex with boating access and rental income potential.

1433 Sunset Rd, Big Pine Key, FL 33043
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Key Colony Beach, FL Duplexes Investment Opportunities Market Analysis

Explore 4 duplexes for sale in Key Colony Beach, FL, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 19,166 square feet of properties for sale, with an estimated market value of $5,568,000.

Prices for duplexes in Key Colony Beach, FL start at $875,000, averaging $1,856,000, and reaching up to $2,750,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

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