DockOnly™

The only MLS search built exclusively for boaters. Find your dock home.

Company

  • About
  • Contact
  • Blog

Search

  • By City
  • By County
  • Dockominiums

Services

  • Marine Services
  • Dock Builders
  • Find Contractors

For Agents

  • Become a Partner
  • Referral Program
  • Featured Listings

Legal

  • Privacy Policy
  • Terms of Use
  • MLS Compliance

© 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

DockOnly and Blue Mar Real Estate Group are committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please let us know.

Equal Housing OpportunityEqual Housing Opportunity

This website complies with the Fair Housing Act. We do not discriminate on the basis of race, color, religion, sex, national origin, familial status, or disability.

DockOnly™Blue Mar Real Estate Group Inc., Licensed Florida Real Estate BrokerBlue MarREAL ESTATE GROUPBlue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker
SearchMarketsDockominiums
SearchMarketsDockominiumsSaved
Real Estate Agents
Home
SearchSaved
Back to Search
420 11th Street photo 1
420 11th Street photo 2
420 11th Street photo 3
420 11th Street photo 4
420 11th Street photo 5
420 11th Street photo 6
420 11th Street photo 7
420 11th Street photo 8
420 11th Street photo 9
420 11th Street photo 10
420 11th Street photo 11
420 11th Street photo 12
420 11th Street photo 13
420 11th Street photo 14
420 11th Street photo 15
420 11th Street photo 16
420 11th Street photo 17
420 11th Street photo 18
420 11th Street photo 19
420 11th Street photo 20
420 11th Street photo 21
420 11th Street photo 22
420 11th Street photo 23
420 11th Street photo 24
420 11th Street photo 25
1 / 25
420 11th Street
25 photos
420 11th Street photo 2
420 11th Street photo 3
420 11th Street photo 4
420 11th Street photo 5
+20

420 11th Street

Key Colony, FL, 33051

Active

$2,949,000

420 11th Street

Key Colony, FL, 33051

Active

$2,949,000

6

Bedrooms

4

Bathrooms

3,392 sqft

Living Area

1983

Year Built

$2,949,000Tour 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.

8,250

Lot Size (sqft)

17

Days on Market

Dock Score™

DockOnly
72
Good

What shaped this score

✓Canal
✓Dock present
✓Bridge-free to bay & ocean
✓Fits boats up to ~40ft (est.)

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

Dock & Water AccessMLS

Canal Front📝 deep water

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

Welcome to your waterfront retreat in the heart of Key Colony Beach. Perfectly positioned on a deep-water canal with 75' of concrete dockage, this spacious 6-Bed, 4-Bath residence offers the ideal blend of island living, boating convenience, and exceptional investment potential. Designed to comfortably accommodate family and guests, the property features a unique floor plan with a 4-Bedroom, 2-Bath main residence and an attached ground level 2-Bedroom, 2-Bath guest quarters, providing flexibility for multi-generational living, entertaining, or maximizing rental income. Soaring ceilings and abundant natural light enhance the open living area, while impact-rated windows and doors provide peace or mind. A highlight of the home is the expansive screened porch overlooking the sparkling pool and tranquil canal. Outside, the resort-style backyard is built for enjoying the Florida Keys lifestyle. Relax in the heated pool and spa, soak up the sun on multiple lounge areas, or dine outdoors while watching the boats cruise by. The expansive patio offers plenty of seating for gathering with family and friends, while the 75-foot concrete seawall accommodates boats up to approximately 35 feet. From your dock, you'll enjoy quick boating access to the Atlantic Ocean in just minutes, with nearby Vaca Cut providing convenient access to the Gulf. Additional features include a garage, ample storage, low-maintenance tropical landscaping, and plenty of room for everyone to enjoy. Located in the sought-after island community of Key Colony Beach, you're just moments from waterfront dining, golf, pickleball, walking paths, Sunset Park, marinas, and Middle Keys attractions. Whether you're searching for a luxury primary residence, second home, or an established investment property, this canal-front oasis checks every box.

Schedule a Showing

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

Select a date

Location

Key Colony, FL, 33051

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: 7/8/2026

© 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
72
Good

What shaped this score

✓Canal
✓Dock present
✓Bridge-free to bay & ocean
✓Fits boats up to ~40ft (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: 6ft

Special Flood Hazard Area

View FEMA Flood Map →
Loading nearby marinas…
Loading nearby sandbars…

Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$589,800 down

%
Principal & Interest$15,302/mo
Property Tax (est. ~1.2%, varies by county)$2,949/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$18,501
Loan Amount: $2,359,200Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

Similar Listings

190 & 192 Harborview Drive$2,650,000

190 & 192 Harborview Drive

Key Largo, FL

2 1 776 sqft

Courtesy of Cornell Commercial Real Estate, Inc. via Florida Keys MLS

580 & 590 10th Street$2,845,000

580 & 590 10th Street

Key Colony, FL

7 7 4,478 sqft

Courtesy of Berkshire Hathaway HomeServices Keys Real Estate via Florida Keys MLS

217 Sombrero Beach Road 1 & 2$3,197,000

217 Sombrero Beach Road 1 & 2

Marathon, FL

8 6 3,680 sqft

Courtesy of Berkshire Hathaway HomeServices Keys Real Estate - Lower Keys via Florida Keys MLS

110 Gulfview Drive$3,524,000

110 Gulfview Drive

Lower Matecumbe, FL

7 4 3,524 sqft

Courtesy of EXP Realty, LLC via Florida Keys MLS

901 46th Street$2,799,000

901 46th Street

Marathon, FL

6 4 3,047 sqft

Courtesy of Florida Keys Real Estate Group via Florida Keys MLS

139 Marina Avenue$2,750,000

139 Marina Avenue

Key Largo, FL

4 6 2,485 sqft

Courtesy of American Caribbean Real Estate, Christie's International Real Estate via Florida Keys MLS

Swipe or use arrows to see more