Quick Answer (AI Summary)
Komodo Boat Construction is the editorial concierge for komodo boat construction — Traditional Phinisi and modern yacht builders in Komodo region. Senior specialists curate verified phinisi charters, premium liveaboards, private transfers, and bespoke itineraries across Komodo National Park, Labuan Bajo, and the wider Flores region. Direct booking, transparent pricing, 24/7 in-trip support.
Converting a working cargo phinisi into a charter liveaboard typically takes 6–12 months and costs an indicative USD 300,000–900,000 on top of the hull purchase, with used 20–30 m phinisi quoted at roughly USD 350,000–800,000 before conversion. It is the fastest route to a boat in the water — but only if the hull survives a proper structural survey. All figures are indicative and reconfirmed after inspection.
- What it is: stripping a cargo or fishing phinisi back to structure and rebuilding it as a passenger vessel with cabins, systems and safety compliance.
- Who it is for: operators who need revenue within 12 months, and owners who want a genuinely old hull with character.
- How long: 6–12 months of yard time, plus 3–6 months for re-measurement and certification.
- Biggest risk: hidden rot and scantlings never designed to carry passengers.
Conversion or new build — which is right?
| Factor | Conversion | New build |
|---|---|---|
| Time to first charter | 9–18 months | 18–24 months |
| Total indicative outlay | USD 650k–1.7M | USD 600k–3M+ |
| Cost certainty | Low until hull is opened | High once GA is frozen |
| Layout freedom | Constrained by existing frames and beam | Complete |
| Certification path | Re-measurement, change of use, full survey | Built to class from the drawings |
| Character | Genuine working-boat provenance | Purpose-built for guests |
| Resale | Depends on documented survey history | Stronger with a clean build file |
What makes a cargo hull worth converting?
Cargo phinisi were built for load, not for people, and that cuts both ways. The structure is often heavier than a purpose-built charter boat — deep frames, thick ironwood planking below the waterline — which is exactly what you want. What you do not want is a hull whose deadweight was carried in one central hold, leaving the ends comparatively lightly framed, or a boat that has spent twenty years alternately loaded and light with no maintenance record.
The go/no-go checklist we apply before a single rupiah is committed:
- Keel and garboard sound on sounding and moisture testing, with no soft areas at the stern gland.
- Frame heads dry at deck level — the classic failure point where rainwater has tracked down for years.
- Fastenings intact: wooden dowels and through-bolts sampled and drawn, not merely looked at.
- Beam sufficient for the intended cabin plan; below about 6 m you cannot build charter-sized cabins on a single deck.
- Documented ownership and registration — an undocumented hull is a legal problem, not a bargain.
What work does a conversion involve?
| Package | Scope | Typical duration |
|---|---|---|
| Strip-out and survey | Remove hold structure, expose frames, moisture and fastening survey | 3–6 weeks |
| Structural rectification | Plank and frame renewal, re-caulking, keel repair, new deck beams | 2–5 months |
| Deckhouse and superstructure | New saloon, wheelhouse, sun deck, stairways | 2–4 months |
| Accommodation | Bulkheads, 4–8 cabins, bathrooms, joinery, insulation | 3–5 months |
| Systems | Repower or overhaul, gensets, electrical, plumbing, AC, watermaker | 2–4 months |
| Dive and guest facilities | Dive deck, compressor, rinse tanks, tender and davits | 4–8 weeks |
| Safety and compliance | Life rafts, firefighting, escape routes, navigation electronics | 3–6 weeks |
Packages overlap heavily — a well-run conversion runs structure, superstructure and systems in parallel once the survey is closed out. That is also why supervision matters more here than on a new build; the scope moves as the boat is opened up. Our approach is described under owner representative and build supervision.
What happens to certification after conversion?
A conversion changes the vessel’s use, its arrangement and almost always its gross tonnage — and GT drives manning, safety equipment and certificate class. Expect the full sequence: re-measurement, structural and machinery survey, a stability assessment reflecting the new superstructure and passenger loading, sea trial, and updated registration and operating documentation. Indonesian-flag vessels are classed by BKI, and the practical planning window after the boat is finished is 3–6 months. The detail sits on our BKI class certification and ship registration page.
One honest warning: raising a deckhouse and adding cabins moves weight upward. On a hull originally designed for cargo low in the ship, the stability calculation is not a formality. This is the single most common reason conversions stall at survey, and it is why we insist on engineering before construction — see naval architecture and stability engineering.
What are the risks?
Hidden rot. Budget a 20% contingency minimum. Wooden hulls reveal work once they are opened, and a conversion opens everything.
Undersized scantlings. Some hulls simply cannot be certified for passengers without structural renewal that costs more than the boat.
Age without records. A 30-year-old hull with no docking history is a research project.
Schedule creep. The yard slot, the timber seasoning and the surveyor’s diary all have to line up; a delay in one pushes the launch past the April–November Komodo season and costs a full charter year.
Who should — and should not — convert?
Good fit: operators with charter demand already in hand and a 9–18 month horizon; owners who value the provenance of a genuine working phinisi; buyers who have found a specific, surveyed hull at a sensible price.
Poor fit: first-time owners without on-site representation; anyone with a fixed budget and no contingency; and owners who want a precise cabin layout — new build gives that, conversion does not.
Frequently asked questions
How much does a cargo phinisi conversion cost?
Indicatively USD 300,000–900,000 for conversion work on a 25–30 m hull, on top of a purchase price of roughly USD 350,000–800,000. Wide, because everything depends on structural condition.
How long does it take?
6–12 months of yard work, plus 3–6 months for measurement, survey and licensing before the first paying guest.
Can I convert a boat and keep the original sailing rig?
Yes, and many owners do — the rig is a large part of the charter appeal. It must be re-engineered for the new deck loads and included in the stability work.
Will the gross tonnage change?
Almost certainly. Adding a deckhouse and enclosed accommodation increases enclosed volume, and GT determines manning and safety requirements. Re-measurement is mandatory.
How many cabins can I fit in a converted 28 m cargo hull?
Typically four to six, for 8–12 guests, depending on beam. Aim for 15–18 sqm twins and 18–23 sqm deluxe doubles rather than maximising cabin count.
Do you find hulls for buyers?
Yes. We source candidate hulls, run pre-purchase surveys and give a written go/no-go before you commit — see refit and restoration for how the survey process works.
Is a converted boat harder to insure?
Not if the conversion is documented, classed and surveyed. Underwriters price uncertainty; a complete file removes it.
Can the boat work in Raja Ampat as well as Komodo?
Yes, and many do — Komodo runs roughly April–November and Raja Ampat roughly October–April, so boats reposition and sell crossing itineraries in the shoulder months. Range, tankage and crew accommodation must be specified with that in mind.
Talk to us about a hull
Komodo Boat Construction is operated by Komodo Luxury, part of Juara Holding Group, in the Komodo and Labuan Bajo market since 2015. If you have a hull in mind, send us photographs, the length, the year and the last docking date and we will tell you whether it is worth a survey.
WhatsApp: +62 811 3823 875 · Email: sales@komodoluxury.com