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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.

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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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+18

69401 Overseas Hwy 1-10 Hwy

Long Key, FL, 33001

Active

$36,500,000

69401 Overseas Hwy 1-10 Hwy

Long Key, FL, 33001

Active

$36,500,000

8

Bedrooms

10

Bathrooms

—

Living Area

2021

Year Built

Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$7,300,000 down

%
Principal & Interest$189,391/mo
Property Tax (est. ~1.2%, varies by county)$36,500/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$226,141
Loan Amount: $29,200,000Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

Comparable Sales

$36,500,000Tour 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.

0

Days on Market

Dock Score™

DockOnly
96
Excellent

What shaped this score

✓Ocean Access
✓Dock with boat lift
✓No fixed bridges
✓Fits boats up to ~50ft (est.)

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

Dock & Water AccessMLS

Ocean AccessNo Fixed BridgesSeawall📝 deep water

AI Aerial Imagery Detection

Dock DetectedBoat Lift DetectedSeawall DetectedDeep Water Indicators~43-57 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.

Navigation RouteDockOnly

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

Description

An unparalleled development opportunity in the heart of the Florida Keys. Spanning approximately 10 acres, this expansive bayfront property represents one of the largest and most versatile land offerings currently available in the Middle Keys. There are two newer construction homes (4 bedrooms/4.5 bathrooms each), 8 additional building rights (7 waterfront lots, 1 dry lot), 16 deep water boat slips in a protected basin (6 with boat lifts) and a total of 10 acres of land conveyed with the sale. The property offers exceptional flexibility for a luxury compound, secluded waterfront community or private family retreat. The 2 current homes sit on 5,200 SF lot each featuring 4 bedrooms/4.5 bathrooms with a total interior square footage of 3,300. Each has their own private pool & spa, unobstructed bay views, garage, Thermador appliances & marble kitchen countertops, impact doors & windows & designed to embrace the island lifestyle. The estate balances seclusion with convenience just minutes from Marathon Executive Airport for effortless fly-in, fly-out access. As well as seamless access to both the bay & ocean side waters via Long Key Bridge or Channel 5. The setting is defined by endless sunsets, abundant wildlife, and world-class boating & fishing just steps from your door. Whether envisioned as a multigenerational retreat, a private waterfront sanctuary or a visionary redevelopment, this legacy property offers the space, flexibility & natural beauty to bring a dream to life.

Schedule a Showing

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

Select a date

Location

Long Key, FL, 33001

No price history available for this property.

Listing courtesy of Serhant

Last updated: 6/13/2026

© 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
96
Excellent

What shaped this score

✓Ocean Access
✓Dock with boat lift
✓No fixed bridges
✓Fits boats up to ~50ft (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: 9ft

Special Flood Hazard Area

View FEMA Flood Map →
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