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$2,600,000 -$95,000 (-3.53%) Price Reduced

  • For Sale
  • Active
  • Duplex
  • 2,485 Sq. Ft.
  • Updated 18 hours ago
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Discover this unique and versatile property in Port Largo, featuring a remarkable legal duplex with breathtaking ocean views. Each side-by-side townhome includes 2 bedrooms and 2.5 bathrooms, with all bedrooms thoughtfully designed as en-suites for ultimate privacy and comfort. With 75 feet of waterfrontage, concrete dock with 20K lbs boat lift. The wide 80 ft deep-water canal provides direct ocean access to the world-famous Key Largo waters ideal for boating, fishing, and diving. Downstairs, you'll find a spacious 760 sq ft storage and a Tiki Hut, perfect for outdoor relaxation. Each side has its own separate electric and water meters. Furniture negotiable. This property boasts excellent rental potential and is also perfect for two families looking to share a second home. Owner/Agent.

Full Property Details for 139 Marina Ave

General

  • Price: $2,600,000
  • HOA FEE: $25/month
  • HOA FEE FREQ.: Annually
  • Taxes: $13,733 (2024)
  • Status: Active
  • Type: Duplex
  • Source: Greater_Miami
  • MLS ID: A11914692
  • Updated: 1/16/2026
  • Added to Site: 58 day(s) ago

Rental Information

  • Rent Includes: None

Interior

  • Interior Features: Stairs
  • Flooring: Tile, Vinyl

Exterior

  • Exterior Features: Balcony, Exterior Lights

Parking

  • Total Spaces: 2

Location

  • Area: Port Largo
  • County: Monroe County
  • Subdivision: PORT LARGO
  • Building Name: PORT LARGO

Community

  • Community Name: Port Largo
  • Association: Yes
  • Units Assoc/Comm: 2

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Central Air
  • Heating Type: Central

Utilities

  • Sewer: Public Sewer
  • Water: Municipal Water

Structural Information

  • Architectural Style: Attached
  • Structure Type: Duplex
  • Detached/Attached: Detached
  • Construction: CBS Construction
  • Roof: Concrete
  • Windows: Complete Impact Glass, High Impact Windows
  • Doors: High Impact Doors
  • Stories/Levels: 3
  • Building Size: 5012
  • Square Feet: 2,485
  • Living Area: 2,485 Sq. Ft.
  • Year Built: 1980
  • Property Condition: Substantially Remodeled

Unit Information

  • Units in Complex: 2

Lot Features

  • Frontage Feet: 75
  • Lot Features: Less Than 1/4 Acre Lot
  • Zoning: is

Water Features

  • Water Front: Yes
  • Water Front Desc.: Canal Width 1-80 Feet, Ocean Access, Seawall

Financial Considerations

  • Price Per Sq. Ft.: $1,046.28
  • Association Fee: $300
  • Assoc Fee Freq.: Annually
  • Tax Amount: $13,733
  • Tax Year: 2024
  • Terms: All Cash, Conventional

Disclosures and Reports

  • Documents Avail.: Existing Survey
  • Legal Description: LT 139 PORT LARGO-KEY LARGO PB5-3 OR558-557 OR560-1023 OR795-373 OR825-1828 OR995-248 OR1454-234 OR1598-90 OR1651-2119 OR1897-1405 OR2033-16
  • Inclusions: Boatlift, Community Boat Ramp, Private Dock, Community Ramp, Lift, Private Dock, Up to 70 Ft Boat
  • Property ID: 00452700-000000

Listed by American Caribbean Real Estate

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Listing agent

— 139 Marina Ave —

  • American Caribbean Real Estate

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 139 Marina Ave

School District:Monroe County School District, Middle Torch Key, FL
NameGradesDistance
Key Largo School
104801 Overseas Highway, Key Largo, FL 33037
PK-85.3 mi
Key West High School
2100 Flagler Avenue, Key West, FL 33040
9-1292 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 139 Marina Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
1/16/2026
Price Reduced
$2,600,000
-3.53%
MLS
11/20/2025
Listed
$2,695,000
48.9%
MLS
3/22/2022
Sold
$1,810,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 139 Marina Ave

Year
Property Taxes
Change
Tax Assessment
Change
2024
$13,733
—
$1,630,097
3%
2024
$13,733
3%
$1,584,157
3%
2023
$13,278
88%
$1,538,017
106%
2021
$7,076
-6%
$748,230
-20%
2022
$7,491
6%
$930,146
20%
2021
$7,076
-5%
$777,454
-1%
2019
$7,450
—
$787,309
1%
2018
$7,473
3%
$775,796
1%
2017
$7,234
—
$768,514
3%
2016
$7,259
1%
$744,685
3%
2015
$7,189
—
$721,707
3%
2014
$7,191
—
$700,256
2%
2013
$7,215
—
$685,153
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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NMLS#: 1598647

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Listed by American Caribbean Real Estate

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139 Marina Ave, Key Largo, FL 33037 (MLS# A11914692) is a Duplex property with 0 bedrooms and 0 full bathrooms. 139 Marina Ave is currently listed for $2,600,000 and was received on November 20, 2025. Want to learn more about 139 Marina Ave? Do you have questions about finding other Duplex real estate for sale in Key Largo? You can browse all Key Largo real estate or contact a Coldwell Banker agent to request more information.

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