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Monroe County, FL Commercial Land for Sale

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44 results
Waterfront Lots in Summerland Key
$899,000

Waterfront Lots in Summerland Key

24774 Overseas Highway, Summerland Key, FL 33042

Two contiguous waterfront lots with highway and canal frontage.

  • Direct deep‑water boating access with 120' concrete dockage.
  • 120+ feet of premium frontage on both Overseas Highway and deep‑water canal.
  • Rare opportunity: Two contiguous waterfront lots totaling 12,000 SF.
  • SC (Suburban Commercial) zoning allows for flexible commercial potential (restaurants, retail, marine services, storage, mixed‑use).
  • High‑impact exposure and unmatched convenience in a sought‑after Florida Keys location.
Updated: Apr 7
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Commercially Zoned Lots in Big Pine
$895,000

Commercially Zoned Lots in Big Pine

30582 5th Avenue, Big Pine Key, FL 33043

Six contiguous commercially zoned lots totaling approximately 31,500 square feet.

  • Six contiguous commercially zoned lots totaling approximately 31,500 square feet.
  • Flexible for a variety of commercial uses, contractor storage, or future redevelopment.
  • 150' x 210' site dimensions.
  • Includes both 30562 and 30582 5th Avenue.
  • Mix of cleared land and an existing structure.
Updated: Apr 13
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Waterfront Land in Summerland Key
$899,000

Waterfront Land in Summerland Key

Two contiguous waterfront lots with highway and canal frontage.

24764 Overseas Highway, Summerland Key, FL 33042
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Duck Key Oversized Vacant Land
$324,900

Duck Key Oversized Vacant Land

Oversized vacant land in desirable Duck Key community.

131 Bimini Drive, Duck Key, FL 33050
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Oceanfront Estates with Development Potential
$9,500,000

Oceanfront Estates with Development Potential

Oceanfront estates with vacation rental income and development opportunities.

95351 Overseas Highway, Key Largo, FL 33037
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Waterfront Land with Approved Plans
$599,000

Waterfront Land with Approved Plans

Vacant land with new seawall and approved building plans.

93 N Conch Avenue, Conch Key, FL 33050
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Key Largo Retail Investment Opportunity
$2,965,000

Key Largo Retail Investment Opportunity

2,400 SF building with adjacent lot in Key Largo.

102970 Overseas Highway, Key Largo, FL 33037
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Prime Corner Lot in Marathon
$289,000

Prime Corner Lot in Marathon

Vacant corner lot in Marathon with high visibility and water views.

319 Tuskegee Street, Marathon, FL 33050
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Highway Frontage Development Opportunity
$3,450,000

Highway Frontage Development Opportunity

Prime commercial land with highway frontage and ocean access.

8501 Overseas Highway, Marathon, FL 33050
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Prime Lower Keys Commercial Land
$1,349,000

Prime Lower Keys Commercial Land

Commercial real estate with excellent visibility and easy highway access.

21423 Overseas Highway, Cudjoe Key, FL 33042
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Oceanfront Development Opportunity in Marathon
$10,500,000

Oceanfront Development Opportunity in Marathon

Rare oceanfront land for luxury residential development in Florida Keys.

57478 Overseas Highway, Marathon, FL 33050
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Oceanfront Development Opportunity in Marathon
$10,500,000

Oceanfront Development Opportunity in Marathon

Rare 6-acre oceanfront land parcel in the Florida Keys.

57478 Overseas Highway, Marathon, FL 33050
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Key Largo Commercial Lot
$457,000

Key Largo Commercial Lot

Commercial lot with frontage on Overseas Highway in Key Largo.

104.5 Mm 104 5 Overseas Highway, Key Largo, FL 33037
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Gulf Front Estate in Marathon
$9,950,000

Gulf Front Estate in Marathon

3.86-acre mixed-use commercial property with waterfront and highway frontage.

6500-6600 Overseas Highway, Marathon, FL 33050
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Vacant Land in Sugarloaf Key
$100,000
1.01 Acres

Vacant Land in Sugarloaf Key

1.01-acre vacant land parcel in the Lower Florida Keys.

ACOSTA TRAIL, Sugarloaf Key, FL 33042
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Waterfront Land with Mixed-Use Zoning
$9,499,000

Waterfront Land with Mixed-Use Zoning

Two parcels of land with mixed-use zoning and waterfront access.

Key West, FL 33040
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Vacant Land in Sugarloaf Key
$100,000
1.01 Acres

Vacant Land in Sugarloaf Key

1.01-acre vacant land parcel in Upper Sugarloaf Key, Florida.

MIRA ROAD, Sugarloaf Key, FL 33042
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Commercial Building Lot Opportunity
$1,295,000

Commercial Building Lot Opportunity

Approved site plan for a 2,500 sq. ft. commercial building.

101201 Overseas Highway, Key Largo, FL 33037
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Key West Multifamily Development Opportunity
$9,888,000
2,071 SF

Key West Multifamily Development Opportunity

Undeveloped ocean-view property in Key West's Historic Commercial Tourist District.

1430 Vernon Avenue, Key West, FL 33040
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Mixed-Use Property with Development Potential
$2,300,000

Mixed-Use Property with Development Potential

Four parcels with commercial, residential units, and vacant land.

5331 5Th Avenue, Stock Island, FL 33040
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Commercial Canal Front Vacant Lot
$575,000

Commercial Canal Front Vacant Lot

Commercial canal front vacant lot with dock and highway frontage.

24590 Overseas Highway, Summerland Key, FL 33042
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Stock Island Mixed-Use Redevelopment Opportunity
$2,295,000

Stock Island Mixed-Use Redevelopment Opportunity

25,000 SF mixed-use property with redevelopment potential near Key West.

Key West, FL 33040
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Prime Corner Lot in Marathon
$289,000
0.06 Acres

Prime Corner Lot in Marathon

Vacant corner lot in Marathon's activity hub with water views.

319 Tuskegee Street, Marathon, FL 33050
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Waterfront Commercial Land in Marathon
$3,100,000
80,400.00 Acres

Waterfront Commercial Land in Marathon

Rare waterfront property on Overseas Highway, ready for redevelopment.

13759 Overseas Highway, Marathon, FL 33050
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Monroe County, FL Commercial Land Investment Opportunities Market Analysis

Explore 44 commercial land for sale in Monroe County, FL, showcased through 44 active listings on our real estate platform. These investment opportunities span a total of 3,510,880,033 square feet of properties for sale, with an estimated market value of $97,358,000.

Sale prices for commercial lots in Monroe County, FL start at $100,000, averaging $4,056,583, and reaching up to $10,500,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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