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Oversized Marina Boat Slip
For Sale
$920,000

100 Avenue I, Marathon, FL 33050

Boat Slips, Marathon, FL

Property SizeContact for details
Days on Market142

Property Features for 100 Avenue I

General Information

Property type Land
Property subtype Other
Zoning MU - M - Mixed Use - Mari
Parking features Open, Guest
Pets allowed Yes
Subdivision Maries Yacht Harbor (54.5)
Standard status Active
APN 00364990000101

Taxes and HOA fees

Tax Year 2025
Tax Description Bk 12 Pt Lt 26 Coco Plum Beach Pb4-166 Fat Deer Key Pt Submerged Land (Canal) Or375-17/20 Or375-125/7 Or375-128/36 Or397
Tax Annual Amount 1880
Legal Description Bk 12 Pt Lt 26 Coco Plum Beach Pb4-166 Fat Deer Key Pt Submerged Land (Canal) Or375-17/20 Or375-125/7 Or375-128/36 Or397

Utilities

Utilities Water Available
Water front 1

Amenities

tiki hut
dedicated storage unit
community pavilion
bathhouse
on-site laundry facilities

Building Details

Year built 1987
Listing Agency: Island Real Estate Company Florida Keys
Listed By: Stacy L Shahan · License #628142
Added: Apr 24 Changed: Sep 6 Last Checked: Sep 12 at 4:06PM
MLS# 619630

Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This marina offering includes a 22-foot by 80-foot boat slip with a 65-foot dock at Coco Plum Beach Yacht Club. The slip is positioned at the end of a gated marina section and includes an 11-foot by 30-foot tiki hut, dedicated storage, electric service, water, and pump-out access. The property also includes access to a community pavilion, bathhouse, and on-site laundry facilities.

Located in Marathon on the oceanside, the slip provides direct, bridge-free access to open water. Open and guest parking are listed among the property features, and the site carries MU - M - Mixed Use - Mari zoning. The marina improvement dates to 1987, with water available as a listed utility.

Key Highlights

  • 22‑foot x 80‑foot boat slip with a 65‑foot dock
  • 11' x 30' tiki hut provides dedicated outdoor space
  • Oceanside position with direct, bridge‑free access to open water

Property Analytics

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Current Use

Saltnsun llc (Bike/Boat/Book/etc) Store salty pup adventurs (Bike/Boat/Book/etc) Store Marathon Sailfish Marina Marina Coco Plum Beach ... Association / Organization Salty Pup Adventures (Bike/Boat/Book/etc) Store

Suggested Use

Top Pick Parking Lot & Garage Electrical Service Auto Parts Store Furniture & Home Goods Grocery & Convenience Store Auto Repair Shop

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

Yes
Utilities to site

Location Intelligence

Trade Area within ½ mile

112
Businesses Nearby

Demographics for 33050, FL

10,479
Population
7,314
Households
1.4
Avg Household Size
50
Median Age
34%
College-Educated
90%
High-School Grad
9.1 sq mi
ZIP Area
1,152
Density / Sq Mi
$83,243
Median Household Income
$40,006
Median Earnings
$1,611
Median Rent
$705,600
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
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Frequently Asked Questions

What type of property is this?
Marina - Gated oceanside slip with bridge-free access, a private tiki hut, storage, and marina utility services.
Where is this marina located?
The property is located at 100 Avenue I Marathon, FL.
What is the asking price?
The asking price for this property is $920,000.
What are key features of this property?
This property features: 22‑foot x 80‑foot boat slip with a 65‑foot dock; 11' x 30' tiki hut provides dedicated outdoor space; Oceanside position with direct, bridge‑free access to open water
More about this property
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