Lagoon 570 Sailboats for Sale

The 570 was designed by the prolific Marc Van Peteghem and Vincent Lauriot Prévost and built at CNB in Bordeaux — the same yard that handles Beneteau Group's high-end composite and aluminum work. The construction method matters for a used-buyer because the hulls and deck structures are vacuum-infused sandwich laminates using vinylester resin over a balsa core, with carbon fiber reinforcement in high-load zones. That is meaningfully better construction than the wet-layup polyester laminates common on contemporary production monohulls, but it introduces a specific inspection priority: balsa core integrity. The boat's entire structural value proposition rests on keeping moisture out of those sandwich panels.

Layouts on the Used Market

Lagoon offered four distinct interior arrangements during the 570's production run, and both owner-oriented and charter-optimized configurations appear on the brokerage market, though charter four-cabin layouts are the more commonly encountered. The charter version dedicates both hulls to guest cabins — five doubles in the fullest configuration, each with its own head and shower — with the galley positioned down in the port hull gangway. The owner's version allocates the entire starboard hull to a large owner's suite with a private head and a sitting area, leaving two private guest cabins to port. A variation of the owner's plan adds a dedicated skipper's cabin just aft of the owner's suite, which suits liveaboard couples who regularly take on paid crew or delivery skippers. A fourth arrangement places the galley to starboard in the saloon with four double cabins below — sometimes called the galley-up plan — and a skipper's berth in the port hull gangway.

When evaluating a specific boat, it is worth confirming exactly which plan you are inspecting rather than assuming. Charter boats often carry modifications made by fleet operators that may not appear in the original build documentation, and the galley position affects day-to-day livability significantly. The enormous central saloon is common to all plans and remains a genuine selling point: it functions as a real living room, not merely a passage between hulls.

Equipment and Common Upgrades

The 570 left the factory well-equipped by the standards of its era, but two decades of brokerage turnover mean that most examples have been substantially updated by successive owners. Solar panels are commonly fitted, usually augmented by an inverter capable of running domestic appliances without running the generators or main engines. Watermakers are effectively standard equipment on any passage-ready example, as the boat's standard water capacity of 234 gallons does not go far with five showers and an active galley. Autopilot systems and life rafts are broadly present, and a chartplotter with navigation instruments at both helm stations is frequently found.

Lithium battery banks appear on a meaningful share of the fleet, often installed as part of broader electrical upgrades that also added solar capacity and a larger inverter. Spinnakers or cruising gennakers are often present — the boat's large roach full-battened main and furling genoa benefit from a downwind sail when the trades go light. Stand-alone freezers beyond the original refrigeration are also frequently added, particularly on boats that have done extended passages.

Owner upgrades that appear on some examples but are far from universal include electric winches at the primaries, self-tacking jibs, upgraded biminis or hard dodgers, radar, and AIS transponders. Upgrading the standard engine controls from the factory single-station configuration to dual-station controls at both helm positions is a practical improvement that makes close-quarters maneuvering safer, and it is worth confirming whether the boat has this upgrade before sea trial. Teak deck replacement or removal is another common item: original teak weathers and lifts with age, and some owners have replaced it while others have removed it entirely. Trampoline replacement is routine maintenance on any well-used example.

What to Inspect

The balsa-cored construction that makes this boat light and rigid also represents its primary long-term vulnerability. The decks, hulls, and bulkheads are all balsa-cored sandwich structures with thin inner and outer layers of glass, meaning that any fitting penetration that loses its bedding sealant becomes a moisture entry point. Core surveys using percussion testing and moisture meters deserve serious attention around every deck fitting, chainplate area, mast base, and stanchion. Pay close attention to the numerous hatches that the original review described as hazards simply by their quantity — each is a potential leak point if seals have aged or been improperly rebedded.

The saildrive arrangement eliminates shaft seals but introduces its own inspection requirement: saildrive boots and bellows degrade with age and UV exposure, and replacement is a haulout job that is easy to defer until it becomes urgent. Confirm the condition and most recent replacement date of both saildrive bellows before committing to a purchase. The rudder system uses Vectran cable and an aluminum connecting rod, and steering gear inspection should include checking cable condition and tension along with the upper and lower rudder bearings.

The vertical window ring around the cabintrunk is a signature design feature, but torsional loads move through the window area under sail, making the window frames and their bedding another area worth checking carefully for stress cracking or water ingress. The cockpit sole is teak, and like any teak-over-fiberglass deck area, it should be examined for softness or spongy spots that could indicate core saturation beneath.

Engine access runs through a locker on the top stern step, which is workable in benign conditions but inconvenient in rough weather. Confirm that both Yanmar diesels have documented service histories. On boats that have seen significant charter use, engine hours can accumulate faster than the calendar years suggest, and heat exchanger condition, impeller history, and injector service records all matter. The standard engine installation is a pair of 56-horsepower Yanmars, though optional higher-output engines up to 100 horsepower were available — confirm which engines are installed, as this affects parts availability and fuel consumption.

The rig is a fractionally rigged aluminum spar with double swept-back spreaders and a luff track for the full-batten main. Lazy jacks are standard. On any boat of this vintage, standing rigging replacement history is essential documentation to request.

Availability and Buyer's Takeaway

The Lagoon 570 appears on the brokerage market across the United States, France, Italy, the French Caribbean, French Polynesia, and the broader Pacific cruising circuit, reflecting both its charter fleet origins and the trade-wind routes its private owners have followed. Inventory is not abundant — this is a relatively small production run spread across a global fleet — but examples surface regularly enough that a patient buyer can afford to be selective.

The boat's combination of CNB-quality construction, a genuinely large and livable interior, and proven bluewater capability keeps demand stable relative to supply. Charter-history boats are not inherently inferior, but they do tend to carry higher hours on engines and systems, and careful documentation review is warranted. Private-owner boats with a single long-range cruising history and detailed maintenance logs often represent the cleaner purchase, though they command attention quickly when they do come to market.

Pre-purchase checklist:

• Comprehensive moisture survey of all balsa-cored panels — hull sides, deck, and cabintop
• Saildrive bellows and boot inspection and replacement history
• Steering system: Vectran cable condition, connecting rod, and rudder bearing play
• Both Yanmar diesel service histories and current engine hours
• Standing rigging age and replacement documentation
• Window frame bedding and cabintrunk stress-crack inspection
• Electrical system audit: battery bank chemistry, inverter capacity, and solar output
• Watermaker service history and membrane condition
• All deck fittings for proper bedding and core integrity beneath
• Confirm which interior layout plan is fitted and compare to original specifications
• Verify engine control stations — single or dual helm positions
• Life raft service and hydrostatic release date