The question of whether to refit an existing vessel or commission a new build is one that most serious owners will face at some point. It is also one of the most financially significant decisions in yacht ownership — and one where the instinct to "just build new" is often wrong, and the instinct to "refit cheaper" is just as often wrong in the opposite direction.

The global yacht refit market was valued at $2.5 billion in 2024, growing at 9.1% CAGR. That growth reflects a structural reality: the existing fleet is aging, new build lead times have extended to 4–6 years for bespoke superyachts, and a well-executed refit can deliver a vessel that performs and presents as well as a newbuild at a fraction of the replacement cost. At the same time, refit costs have risen 20–35% over three years. Owners working from 2019 or 2020 budgets are operating on outdated assumptions.

The hull

The hull is the one element that is genuinely expensive to replicate and genuinely expensive to repair if compromised. Everything else aboard can be replaced.

Before any serious cost comparison is possible, a hull survey is mandatory — not a broker's visual inspection, but a full structural survey including ultrasonic thickness testing of the plating, inspection of the keel attachment, and assessment of the hull-deck joint. For GRP vessels, this includes osmotic blister assessment. If the survey reveals structural compromise, the calculation changes fundamentally. If the hull is sound, building on it is almost always the more economical path.

The scope of work

Refits exist on a spectrum. Industry practice organizes them into three categories.

Cosmetic refit covers soft furnishings, paint, upholstery, and carpet replacement. For a 40–60m vessel, this typically runs $150,000–$400,000, done between seasons without dry dock.

Technical and interior refit covers new electronics, HVAC replacement, galley redesign, cabin interior work, exterior repaint, and antifouling. For the same vessel: $500,000–$2.5 million, 3–6 months, requiring yard access.

Major refit / life extension involves structural modifications, propulsion system replacement or hybrid upgrade, new generators, complete electrical distribution, full interior redesign, and stabilizer replacement. For a 40–60m vessel: $3M–$8M+, 12–24 months. The decision point typically occurs when a cosmetic or technical refit is scoped and the yard discovers the work needs to expand into this third category. A useful rule of thumb: if the total refit cost will exceed 60% of the vessel's current replacement value, the economics become very difficult to justify on financial grounds alone.

Time and technology

New build delivery timelines for custom builds above 40m currently run 4–6 years from contract signing at the top European yards. If an owner needs a vessel sooner, refit is often the only practical option — and this is frequently the deciding factor, not the cost comparison.

Technology currency is where new build makes its strongest case. A vessel built in 2010 was designed with 2008–2009 specifications. The gap versus what is now possible — hybrid propulsion, dynamic positioning, advanced stabilization, integrated AV systems, energy-efficient HVAC with heat recovery — is substantial. Some technologies can be retrofitted. Hybrid propulsion is technically possible as a retrofit but requires significant structural and electrical modification; the engineering cost runs 40–60% higher than specifying it in a new build, and the result may not achieve the same integration quality. If an owner's vision involves significant propulsion or systems upgrades, the case for new build strengthens considerably. If the vision is primarily aesthetic and interior transformation, refit is almost always more economical.

A real comparison

To give the framework some grounding: a 45m steel-hull motor yacht built in 2012, structurally sound, with a complete interior redesign across all cabins and saloons, new HVAC with heat recovery, new navigation suite, exterior repaint, and new tenders.

Realistic refit budget: €2.8M–€3.5M over 14–18 months. New build equivalent: €12M–€16M over 36–48 months. In this case, the refit is clearly the better financial decision if the hull survey confirms structural integrity. The owner gets a vessel to current standards at approximately 20–25% of new build cost, available 2–3 years sooner. The calculation shifts toward new build if the owner wants hybrid propulsion, a significantly different hull form, or if structural issues require remediation.

There is no universal right answer. But there is a right process — and owners who follow it before signing contracts spend less money and have fewer regrets.

Work with RSantos Design

Whether you're planning a refit or starting a new build, we develop the complete design package — exterior, interior, and 3D documentation — to the level of detail that yards can actually build from.

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