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540 Sombrero Beach Road

Marathon, FL, 33050

Active

$1,635,000

2

Bedrooms

2

Bathrooms

1,170 sqft

Living Area

1981

Year Built

10,005

Lot Size (sqft)

65

Days on Market

Dock Score™

DockOnly
71
Good

What shaped this score

Ocean Access
Dock present
Bridge-free to bay
Fits boats up to ~71ft (est.)
Est. waterfront~76 ft

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

Dock & Water AccessMLS

Canal Front

AI Aerial Imagery Detection

Dock DetectedSeawall Detected

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

Located in Marathon's desirable Sombrero area, this waterfront home combines immediate boating access, thoughtfully designed outdoor living, and close proximity to Sombrero Beach. The property offers 76 feet of waterfront, a 40-foot dock, and immediate access to open water--an ideal setup for fishing, diving, or simply enjoying life on the water. When you're not on the boat, Sombrero Beach is just moments away. Recent improvements totaling more than $300,000 have transformed the outdoor spaces into an extension of the home. A custom pool and spa with sun shelf, travertine decking, outdoor grilling and bar area, updated landscaping, extensive landscape lighting, multiple covered and screened patios, and a metal roof installed in 2021 are among the property's notable upgrades. A climate-controlled 500-square-foot lower-level bonus area provides additional flexible space for storage, recreation, hobbies, or a home gym. The property has also proven itself as a highly successful vacation rental, with 2026 year-to-date income and existing future bookings already exceeding $100,000 net to the owner. The assumable flood insurance policy, currently just $1,289 per year, further enhances the property's appeal. Looking ahead, existing architectural plans provide the opportunity to add three additional bedrooms, creating a five-bedroom home and further maximizing this sought-after Sombrero Beach location. Enjoy the home as it is today, with its proven rental performance, while retaining the option to expand in the future. Immediate boating access, proximity to Sombrero Beach, thoughtfully designed outdoor living, proven rental performance, and future expansion potential come together in a property that offers the best of Keys living.

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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 Berkshire Hathaway HomeServices Keys Real Estate via Florida Keys MLS

Last checked: 5 hours ago

Listing updated: August 27, 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.

Nearest Bridge Clearances

Florida Keys, critical for tall/large vessels

No bridge data available for this location.
FEMA Flood Zone AE
BFE: 10ft

Special Flood Hazard Area

View FEMA Flood Map →
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Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$327,000 down

%
Principal & Interest$8,484/mo
Property Tax (est. ~1.2%, varies by county)$1,635/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$10,369
Loan Amount: $1,308,000Rate: 6.75%
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$1,635,000Tour 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.