A buyer’s inspection manual for screening Lagoon 42 listings before you spend money on travel, survey, or deposit.

Buying a Lagoon 42 is rarely about finding “a boat.” It’s about finding the right example. On the used market, two Lagoon 42s can look similar in photos while telling very different stories once you start asking for records, inspecting the systems, and seeing how the boat behaves under load.

This guide is written for serious buyers who want a clear process, not vague advice. It helps you evaluate a specific Lagoon 42 listing methodically, gather the right evidence from the seller, and avoid expensive surprises.

Inside you’ll find:

• A clear model overview and what matters most on a Lagoon 42

• Known wear patterns and age-related risk areas (written in calm, non-dramatic language)

• Red flags that should slow you down, and green flags that typically signal good ownership

• Critical seller questions that reveal maintenance quality and hidden history

• A structured pre-survey photo and video checklist for remote evaluation

• A sea trial checklist focused on what only shows up underway (and why a sea trial can save you survey money)

• Negotiation leverage guidance, so you price the boat realistically based on evidence

• Copy-paste buyer communication templates, polite and professional for owners and brokers

• An appendix on escape hatch safety for cruising catamarans

This is not a replacement for a certified marine survey. It is the step before the survey, designed to help you decide which boats deserve the next level of time and money.