GlennPatton.com
 Adventures

 Our Lagoon 450 Cat "SeaQuest"
for sale by owner
Located In Key Largo, FL
May 2026

Listing Pictures

SeaQuest details

The Lagoon 450 is praised for its reliable performance and strong power, with twin Yanmar 4JH57 SD engines delivering a total of 114 horsepower. Owners appreciate its confident handling, making docking and maneuvering straightforward. The spacious three cabin and three head layout offers overnight comfort for extended stays. Its generous fuel and water capacities provide longer trip capability, reducing the need for frequent refueling or water replenishment. The flybridge design enhances the sailing experience, offering excellent visibility and a comfortable helm station.

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As the seller, I will do all the marketing of this listing & I will generally make the boat available.  The seller will be responsible for ensuring the vessel is accessible, operation, and is prepared for the sea trial. The Seller will negotiate and pay a commission to a buyer's agent.

The buyer will pay for the marine survey, haul-out fees, and engine inspections. The buyer incurs these costs for due diligence.

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2016 Lagoon 450  “SeaQuest” Cabins | 3 Heads | Owner’s Version
Rare & hard to find Lagoon CAT with 3 cabins & US 110v electric.  Most Lagoon CATS are 4 cabin Boat with the EU 230v 50hz electrical system.  So, A Lagoon 450~3 Cabin boat with the US 110v 60hz US electrical system & 50amp shore power connection is are to find.