
57478 Overseas Hwy, Marathon FL 33050, MARATHON, FL, 33050
Active210 days on marketListed Jan 12, 2026MLS #A11940104
About this home
57478 Overseas Hwy, Marathon FL 33050
“United States Bankruptcy Auction. The Listing Price is for MLS Purposes only. Actual Price will be determined at Auction. Now Accepting Pre-Auction Stalking Horse Bids. The Stalking Horse Bid Deadline is Monday, July 27, 2026, at 5:00 PM EDT” Rare oceanfront development opportunity in the heart of the Florida Keys. Encompassing nearly 6 acres of pristine oceanfront land in Grassy Key, this exceptional parcel presents an ideal canvas for developers seeking to create luxury residential units with direct oceanfront and beach access. Surrounded by unspoiled natural beauty and tranquil beaches, the property offers immediate proximity to shopping, fine dining, spas, marinas, and world-class boating. Residents will enjoy unparalleled access to deep-sea fishing, scuba diving, snorkeling, and vibrant coral reefs, all set against the backdrop of the Keys’ iconic turquoise waters. Located in Marathon, often referred to as the Heart of the Florida Keys, the site benefits from a highly desirable central Keys location, conveniently positioned between the Upper Keys—such as Islamorada—and the Lower Keys, including Key West. Marathon is known for its rich maritime history, local airport, and accessibility, serving as a central hub comprising islands such as Vaca Key, Duck Key, and Grassy Key.
Facts & features
The home at a glance
6 ac
Lot size
Inside
Outside & construction
Community & fees
Utilities & systems
The numbers
What it really costs
Built from this home's actual numbers — the most recent property-tax bill on record — not generic estimates.
$40,909 /mo · 10% down Conventional, 30-yr fixed at 6%
The assumptions
Above the FHA loan limit for our service areas, so Conventional is the default. VA buyers: switch below — $0 down.
These numbers assume a generic buyer — your credit, down payment and loan program change them. Get the real quote in minutes:

Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Run your own numbers
FHA isn’t available at this price — the loan would exceed the $541,287 FHA limit for our service areas.
Estimated payment
$40,909/mo
Includes estimated PMI — it drops off once you reach 20% equity. Taxes reflect the most recent bill on record; insurance is a typical-Florida estimate. Your lender’s numbers will differ. CENTURY 21 Edge partners with Florida’s best lenders.
Where it sits
Inside Marathon
Get to know Marathon. See the full Marathon guide →
MARATHON 33050 — neighborhood snapshot
Population
10,586
Median age
48.1
Median income
$83,243
Median home value
$705,600
Avg household
2.44
Households w/ children
995
For the school run
Monroe County School District
School assignments and ratings via edgeAI — always verify with the district.
The numbers that matter
The Marathon market
$1.1M → $815K
Marathon median sold, yr/yr
95.6%
Sale-to-list ratio (12 mo)
Median sold price, Marathon, trailing 36 months (3-month rolling) · live MLS data.
This home is listed 999% above the MARATHON 33050 median. See the full Marathon market guide →
Paper trail
This home's history
Reality check
What actually sold near 57478 Overseas Hwy
Asking prices are opinions — closed sales are facts. The most comparable homes that actually changed hands nearby in the last twelve months.
Sold · Feb ’26$1,275,000
56 Pelican Rd, Marathon FL 33050
2 bd · 1 ba · 864 sqft · $1,476/sqft · 381 DOM
Closed-sale data from the MLS, last 12 months, selected for similarity in size and location. No two homes are identical — ask us for a full comparative analysis.
Your home team
The pros in your corner
Buying a home is two conversations — the home and the money. Here’s who handles each, side by side, already working together.
Your agent
David Ramirez
Real Estate Agent · CENTURY 21 Edge
Tours, negotiation, and every question about 57478 Overseas Hwy — start here.

Your lender
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Pre-approval, rates, and the real monthly number for 57478 Overseas Hwy — before you fall in love.
See it in person
Schedule a tour
Pick a day that works — this goes straight to David's phone and CRM.
Straight answers
57478 Overseas Hwy FAQs
What would the monthly payment be for 57478 Overseas Hwy, Marathon FL 33050?+
With 10% down on a 30-year Conventional loan at 6%, the all-in payment lands around $40,909/mo — principal and interest, the actual property-tax bill and typical Florida insurance. The payment calculator on this page lets you switch loan type (FHA, Conventional, VA) and adjust the down payment, rate and term.
What are the property taxes on 57478 Overseas Hwy, Marathon FL 33050?+
The most recent tax bill on record (2025) was $4,222. A new owner's bill can differ once the sale price resets the assessed value — we can walk you through what to expect.
How does the price compare to other homes in Marathon?+
At $7,000,000, this home is listed about 691% above the Marathon median of $885,000. The market section on this page shows how the area is trending.
Which schools are assigned to 57478 Overseas Hwy, Marathon FL 33050?+
Marathon School (high), Stanley Switlik Elementary School (elementary) — Monroe County School District. Always verify school assignments with the district before relying on them.
The brief
Four things that matter here
01Positioned at the premium end
$7,000,000 runs 999% above the MARATHON 33050 median.
02Waterfront living
This home sits directly on the water — the single scarcest feature in Florida inventory and the strongest long-term value anchor.
03Time on market is leverage
210 days on market against a Marathon median of 94 — sellers in this position are usually ready to negotiate.
04The price has already moved
Listed at $11,500,000, now $7,000,000 — a $4.5M cut. The full history is in the market section below.
Keep looking
Similar homes nearby
Listing courtesy of Compass Florida, LLC · Iliana Abella. MLS #A11940104.
IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by Miami Association of REALTORS®.
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