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© 2026 DockOnly™. All rights reserved.

DockOnly™ and Dock Score™ are trademarks of Blue Mar Real Estate Group Inc.

Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker

Blue Mar Real Estate Group Inc.

Licensed Florida Real Estate Broker · DBPR License CQ1018554

4000 Ponce De Leon Blvd, Suite 470, Coral Gables, FL 33146

[email protected]

Listing data is provided by participating Multiple Listing Services and is deemed reliable but not guaranteed. Each listing's MLS source and its required disclosures appear with that listing. Dock Score™ is a DockOnly.com rating and is not provided by or affiliated with any MLS or listing broker. NOAA chart data is public domain and for reference only, not for navigation. Full MLS Compliance

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+20

57477 MORTON Street

Marathon, FL, 33050

Active

$1,600,000

57477 MORTON Street

Marathon, FL, 33050

Active

$1,600,000

2

Bedrooms

2

Bathrooms

1,152 sqft

Living Area

1980

Year Built

11,960

Lot Size (sqft)

0

Days on Market

Dock Score™

DockOnly
33
Fair

What shaped this score

✓Dock present
✓Bridge-free to bay
✓deep water
·Waterfront

DockOnly.com rating, not provided by the MLS or listing broker.

Dock & Water AccessMLS

Gulf FrontOpen Water📝 deep water

AI Aerial Imagery Detection

Dock DetectedSeawall DetectedDeep Water Indicators

Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.

Navigation RouteDockOnly

Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.

Description

2-bedroom, 2-bathroom home in Grassy Key, featuring a deep-water dock with easy access to the ocean, just a short ride away from its Gulf-side location. Enjoy a beautiful pool and ample parking space, along with breathtaking sunsets from your backyard paradise! Each bedroom boasts its own en-suite bathroom, ensuring comfort and privacy for all guests. Currently operating as a successful vacation rental. A perfect investment opportunity or a dream retreat!

Schedule a Showing

See the property and tour the dock. A licensed waterfront specialist will arrange your private showing.

Select a date

Location

Marathon, FL, 33050

No price history available for this property.

Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]

Listing courtesy of America's Best Realty Corp. via Florida Keys MLS

Last checked: 11 hours ago

Listing updated: August 3, 2026

© 2026 Florida Keys Board of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the Florida Keys Board of REALTORS®. Information is deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal.

IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Dock Score™

DockOnly
33
Fair

What shaped this score

✓Dock present
✓Bridge-free to bay
✓deep water
·Waterfront

DockOnly.com rating, not provided by the MLS or listing broker.

Nearest Bridge Clearances

Florida Keys, critical for tall/large vessels

No bridge data available for this location.
FEMA Flood Zone VE
BFE: 12ft

Coastal High Hazard

View FEMA Flood Map →
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Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$320,000 down

%
Principal & Interest$8,302/mo
Property Tax (est. ~1.2%, varies by county)$1,600/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$10,152
Loan Amount: $1,280,000Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

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$1,600,000Tour the dockSchedule a Showing
Navigation note: Navigation routes show the shortest mapped path to open water. A vessel taller than the binding bridge clearance may still reach open water via a longer alternate route that we don't currently map. Verify navigability with a local captain or surveyor before relying on it.