Vessels
Connect the original specification to later owner changes
For a Lagoon 400 enquiry, identify the precise version and build year before attaching a specification sheet. Then document later changes to the battery bank, solar installation, davits and living equipment if fitted. A dealer listing can help identify questions, but a survey and installation records should establish the current boat. Do not treat a seller's list of upgrades as evidence that they were professionally designed or accepted by an insurer.
Insurance terms to clarify for this scenario
Ask whether an alteration changes the value, construction description, use or inspection requirements. Keep the invoice separate from any engineering or electrical documentation: proof of payment is not proof of an appropriate installation. If the existing insurer covered the seller, obtain your own written acceptance; that decision and its conditions do not automatically transfer with the boat.
Compare like-for-like quotes
For this Lagoon 400, keep the proposed value, home berth, skipper details and cruising area consistent across enquiries. Record any differences in excesses, settlement basis, exclusions and outstanding conditions. A quote is not directly comparable if it assumes different use or omits an unresolved survey finding. Ask for the final schedule and endorsements, not just a premium figure, before deciding whether the offered cover matches the proposal.
Documents and questions to prepare
- Version and build-year identification.
- Original inventory compared with today's installed equipment.
- Documents for structural or electrical alterations.
- Written acceptance of the boat in its current configuration.
Worked ownership scenario
A Lagoon 400 buyer finds a substantial solar arch added after delivery. The buyer obtains the installation information and includes it in the insurance submission. The insurer is asked about acceptance and valuation before the new owner assumes that the seller's certificate answers those questions.
Turn the guide into a written insurance brief
Record the hull identification number, build year, exact version, propulsion, equipment and any previous repairs before requesting terms. Keep the purchase price distinct from the requested insured value and explain the evidence for that value. Send each insurer the same current facts. If a survey or repair is still pending, ask what cover can begin now, what is excluded and what evidence is needed to change the terms.
Record the policy wording and unanswered questions
Use the comparison worksheet to keep each requirement beside its document reference. Leave an item unresolved until the insurer has answered it.
Frequently asked questions
Should all Lagoon 400 upgrades be added to the hull value?
Only after considering the valuation basis. A complete-boat value may already reflect those upgrades. Explain the evidence and avoid adding the same equipment twice.
Can this guide quote a premium for my Lagoon 400?
No. It supplies preparation questions, not insurer pricing. Request current terms using the boat's actual value, history, location and use, and compare cover conditions alongside the premium.
Sources and scope
Manufacturer links support identification and design context. Australian insurer document libraries are starting points for checking policy wording, not evidence of acceptance of this boat or activity. The checklists and examples are editorial guidance. Use the PDS version, schedule and endorsements that apply to your own policy; this guide does not rank insurers or provide an individual insurance recommendation.
Related guides
- Catamaran Insurance Guides by Brand, Model and Topic
- Lagoon Catamaran Insurance Australia
- Catamaran Solar Arches and Insurance
- Agreed Value vs Market Value for Catamaran Insurance
- Boat Insurance Quote Preparation Checklist