Lagoon 400 Catamaran: A Practical, Two-Person Sailing Cruiser

The Lagoon 400 is a thoughtfully designed cruising catamaran intended for comfortable two-person sailing while also accommodating family or guest cruising with three- or four-cabin layouts. Its design emphasizes easy handling, good ventilation throughout the living spaces, and intuitive access to the key working areas on board. The model blends practical onboard ergonomics with the social spaces owners expect from a modern cruising catamaran.

Layout and Accommodation

The Lagoon 400 is offered in three- and four-cabin versions, each with independent heads. Cabins are arranged to give privacy and practical storage, and the double berths can be converted into twin beds where flexibility is preferred. The private heads for each cabin add convenience for extended cruises and overnight passages.

Onboard ventilation is a strong focus of the design. Large hatches and well-placed openings ensure good airflow through cabins and living areas, contributing to comfort in warm climates or when at anchor. Natural light and cross-ventilation are integral to the interior plan, making the saloon and cabins feel open and bright.

Deck, Cockpit and Helm Ergonomics

A hardtop bimini aligned with the cabin top provides effective sun protection over the cockpit while preserving sightlines from the helm. The helm station has been arranged so that primary sail and navigation controls are accessible from a single position, allowing a small crew — even just two people — to manage sailing and docking operations with minimal movement.

Wide side decks and cockpit access from the transoms make moving around the boat safe and straightforward. Transom platforms provide easy access to a dinghy and make boarding from a swim step or dock more convenient. The open cockpit encourages socializing and a seamless connection between the indoor and outdoor living spaces, which is a hallmark of Lagoon designs.

Galley and Social Spaces

Following an arrangement similar to the Lagoon 420 and 440, the galley on the Lagoon 400 sits between the saloon and the cockpit. This central location makes meal preparation part of the social flow, allowing the cook to interact with guests in the saloon and those in the cockpit. The layout supports both relaxed cruising and entertaining at anchor.

Performance and Power

The Lagoon 400 is powered by twin saildrive engines, typically specified in the 29-horsepower to 40-horsepower range. Twin engines provide redundant propulsion for close-quarters maneuvering and better handling in marinas and tight anchorages. The catamaran’s hull form and beam support comfortable, stable cruising while offering the living volume expected of a cruising multihull.

Designed by Van Peteghem-Lauriot Prévost, the Lagoon 400 carries their pedigree in multihull naval architecture, combining seaworthiness with an emphasis on onboard comfort and practical use. The overall beam measures 23 feet 9 inches, which contributes to generous cockpit and saloon dimensions as well as stable performance under sail and power.

Price and Availability

When introduced, the base price for the three-cabin version of the Lagoon 400 was listed at $365,000. Pricing varies by specification, optional equipment, and regional delivery considerations, so final purchase figures depend on the chosen options and outfitting. This model originally appeared in the August 2009 issue of the publisher and has since been a popular choice for cruisers seeking a manageable, spacious catamaran.

For reference, information about the Lagoon brand and the Lagoon 400 can be found through the manufacturer and brokerage resources. Publisher notes indicated brokerage listings were powered by BoatQuest.

If you are researching Lagoon catamarans, look for listings and manufacturer materials under the Lagoon name and model designation to compare layouts, engine options, and available equipment packages. The Lagoon 400 remains a practical option for sailors seeking an easy-to-handle cruising platform with comfortable accommodations and a social cockpit layout.