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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

Blue Mar Real Estate Group Inc.

Licensed Florida Real Estate Broker

DBPR License CQ1018554

Listing data provided by Miami Realtors MLS via Bridge Data Output. Information deemed reliable but not guaranteed. Dock Score™ is a DockOnly.com rating and is not provided by or affiliated with the MLS or listing broker. NOAA chart data is public domain and for reference only — not for navigation. Full MLS Compliance

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© 2026 Miami Association of REALTORS®. IDX information provided exclusively for personal, non-commercial use. Listing data last updated every 30 minutes.

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10999 Ave 3rd Avenue
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+1

10999 Ave 3rd Avenue

Marathon, FL, 33050

Active

$1,700,000

10999 Ave 3rd Avenue

Marathon, FL, 33050

Active

$1,700,000

2

Bedrooms

3

Bathrooms

1,247 sqft

Living Area

1977

Year Built

Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$340,000 down

%
Principal & Interest$8,821/mo
Property Tax (est. ~1.2%, varies by county)$1,700/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$10,771
Loan Amount: $1,360,000Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

Comparable Sales

$1,700,000Tour 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.

10,125

Lot Size (sqft)

166

Days on Market

Dock Score™

DockOnly
88
Excellent

What shaped this score

✓Ocean Access
✓Dock with boat lift
✓Bridge-free to bay & ocean
✓Fits boats up to ~32ft (est.)

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

Dock & Water AccessMLS

Canal FrontCanalOcean Access

AI Aerial Imagery Detection

Dock DetectedBoat Lift DetectedSeawall Detected~27-37 ft dock

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.

Canal WidthDockOnly

At the dock

County parcel data
100ft
dock100 ft99.69899

Width sampled every 10 ft from dock · perpendicular measurement

Measured perpendicular from this parcel's waterfront edge to the parcel directly across the canal, using surveyed county GIS boundaries.

Will it turn around?

Up to 24 ft

Easy
handling

24–33 ft

Fits
with care

33–38 ft

Tight
(back-in)

Boats over 38 ft can't turn around here — back in/out only. Clear channel ≈ 50 ft once boats are docked both sides (Monroe rules cap each side ~25 ft). Wide-beam yachts need the upper end of each range.

Navigation RouteDockOnly

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

Description

Unapproved Short Sale for Non-Conforming 2 Bed/3 Bath Waterfront Home in Marathon. Large corner lot with 205 feet of water frontage. First floor has non-conforming addition of 2 bedrooms and living area. Second floor nicely updated with renovated kitchen, baths and impact windows throughout.

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.

Listing courtesy of Beckett Realty Advisors, LLC

Last updated: 6/17/2026

© 2026 Miami Association 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 program of the Miami Association of REALTORS®. Information is deemed reliable but not guaranteed. 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
88
Excellent

What shaped this score

✓Ocean Access
✓Dock with boat lift
✓Bridge-free to bay & ocean
✓Fits boats up to ~32ft (est.)

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 AE
BFE: 7ft

Special Flood Hazard Area

View FEMA Flood Map →
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