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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

0 Howell Key

Summerland Key, FL, 33042

Active

$16,900,000

0 Howell Key

Summerland Key, FL, 33042

Active

$16,900,000

5

Bedrooms

4

Bathrooms

3,352 sqft

Living Area

2015

Year Built

$16,900,000Tour 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.

422,026

Lot Size (sqft)

25

Days on Market

Dock Score™

DockOnly
53
Fair

What shaped this score

✓Ocean Access
✓Bridge-free to bay
✓Dock present
✓Fits boats up to ~30ft (est.)

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

Dock & Water AccessMLS

OceanfrontGulf FrontOpen Water

AI Aerial Imagery Detection

Dock 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

Discover one of the Florida Keys' most extraordinary private island retreats. Encompassing 9.69 acres of pristine tropical landscape, Howell Key offers an unparalleled opportunity to own an off-grid luxury island surrounded by breathtaking open water views from sunrise to sunset. Designed for those who value privacy, adventure, and refined coastal living, the island features acres of groomed trails, resort-style pool, sandy beach, pickleball court, chicken coop, pasture, and expansive barn. At the heart of the island sits a beautifully crafted 5-bedroom, 4-bath residence encompassing 3,352 sq. ft. Cathedral ceilings, elegant coastal interiors, and expansive gathering spaces create a warm yet sophisticated atmosphere, while walls of impact-rated glass invite natural light and panoramic water views throughout the home. The layout is designed to comfortably accommodate family and guests with an attached primary suite serving as a private sanctuary, complete with a generous walk-in closet. A separate guest wing is accessed via a breezeway and features its own living room, breakfast bar, and 2 private bedrooms creating a welcoming retreat while maintaining privacy from the main residence. Beyond the main residence, the island unfolds as a private playground. Wander along groomed walking trails, relax by your saltwater pool, launch your kayaks from your own sandy beach, enjoy pickleball with friends, or watch the sunset from your dock. Built for resilience and efficiency, the home features SIP construction, Hardie Board siding, a standing seam metal roof, impact windows and doors, whole-house reverse osmosis water filtration, and an off-grid solar power system. Elevated approximately 10 feet above base flood elevation, the property offers both sustainability and peace of mind. Island purchase comes with barge, golf cart, tractor, and a private mainland lot for car storage. Howell Key is a private island lifestyle few will every have the opportunity to experienc

Schedule a Showing

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

Select a date

Location

Summerland Key, FL, 33042

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 Coldwell Banker Schmitt Real Estate Co via Florida Keys MLS

Last updated: 7/9/2026

© 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
53
Fair

What shaped this score

✓Ocean Access
✓Bridge-free to bay
✓Dock present
✓Fits boats up to ~30ft (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: 10ft

Special Flood Hazard Area

View FEMA Flood Map →
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Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$3,380,000 down

%
Principal & Interest$87,690/mo
Property Tax (est. ~1.2%, varies by county)$16,900/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$104,840
Loan Amount: $13,520,000Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

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