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**155 FEET OF WATERFRONT. BRAND-NEW SEAWALL. PRIVATE BOAT RAMP.** Discover one of Marathon's most desirable waterfront homesites, perfectly positioned on Vaca Cut with breathtaking sunset views and direct boating access to both the Atlantic Ocean and Gulf. Offered for sale for the first time in nearly 30 years, this oversized lot-and-a-half boasts an impressive 155 feet of water frontage, including 135 feet of brand-new 2026 seawall and a rare 20-foot-wide private boat ramp! This highly desirable feature makes the property a true boater's paradise, offering exceptional convenience and access to world-class fishing and cruising. The existing residence requires redevelopment and is being offered AS-IS. The seller has building plans specifically designed for the property, or bring your own vision to life and create your dream Florida Keys waterfront estate. The expansive lot offers potential space for a resort-style pool, tiki hut, garage, RV parking, boat storage, and more, subject to applicable approvals. This remarkable homesite offers endless possibilities in one of Marathon's most sought-after oceanfront locations!

Highlights

  • Land
  • 0.31 Acre Lot
  • Waterfront
  • 13 days on Market


  • Acres
    0.31
  • Lot Features
    Corner Lot
  • Water Front Features
    Ocean Front
  • Water Front
    Yes
  • View
    Ocean
  • Utilities
    Sewer Available

  • Area
    17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
  • County
    Monroe
  • City
    Marathon
  • Neighborhood
    Yacht Harbor Island (53.5)
  • Zip Code
    33050

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Frequently Asked Questions

How do I schedule a tour of ?

We can make that happen quickly. Click Tour This Home and we'll connect you directly with our vetted local partner to schedule your visit to .

They know lands in the area well and can give you the guidance you need to buy with confidence.

How do I get more information about ?

Click Ask a Question to talk with our team. You already know it is a N/A bed, N/A bath, listed for $3,195,000. We can talk through recent upgrades, potential seller motivation, how this land compares to others in Marathon, and can even get you in to see the property quickly.

How much is the monthly mortgage payment for ?

With a 20% down payment and a 30-year fixed loan at an illustrative 7.25% rate, the ez Mortgage Calculator estimates the monthly payment for at around $20,367. This includes estimated property taxes and insurance.

Want to see how this changes with different down payments or interest rates? Jump to the calculator to run the numbers and fine-tune your plan.

How do I get pre-approved to buy ?

Stand out in a competitive market by getting pre-approved today. Our quick and private pre-approval process helps you understand your true buying power—no credit pull required to explore all of your options.

Or, let us connect you with our preferred local lender in Monroe County. They will give you all of your available financing options, based on your specific situation and what is available to you.

Can I negotiate the asking price for ?

In most cases, yes. Whether is priced competitively or not, your best offer depends on your personal situation, the seller's timeline, and recent activity in Marathon's market. Our preferred local partner will help you craft a strategy—factoring in comparable properties that have sold, timing, and deal structure—to make a smart, strong offer. Click here to ask about negotiation opportunities.

How do I make an offer on ?

We can handle that for you. Our preferred local agent specializes in lands in Marathon and can guide you through every step of the offer process.

You need an expert who is looking out for your best interests. From market valuation to contingencies and timing, they'll help you present a compelling offer that fits your goals. Click Ask a Question to get started today.

How long has this property been on the market?

was listed on November 01, 2026, which means it's been on the market for 13 days.

Want to keep tabs on it? Click the ♥ to favorite this home and get notified of price drops or changes.

What is the lot size of this property?

sits on a 0.31-acre lot, which is 13,504 square feet.

What are the property taxes for ?

The most recent public record shows annual property taxes for were approximately $26,217. This may change with reassessment or exemptions. Our local partner can verify current tax amounts and help you estimate future costs based on your situation.

Is still available for sale?

Yes, this home is still available! Click the ♥ to favorite it so you don't miss any changes—or ask our local expert to schedule a time to see it in person.

Source: ez Home Search, MLS Data

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IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the MLS. Copyright 2026 Florida Keys Board of REALTORS®, Inc.