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🏗️ '''Structural warranty''' is a type of [[Definition:Insurance policy | insurance policy]] or guarantee that covers defects in the structural elements of a building — such as foundations, load-bearing walls, roofs, and framing — for a specified period after construction is completed. In the insurance context, structural warranties function as a form of [[Definition:Latent defect insurance (LDI) | latent defect insurance]], protecting property owners, developers, and sometimes mortgage lenders against the financial consequences of construction flaws that may not become apparent until years after handover. These products are especially prominent in residential construction markets across the United Kingdom, France, continental Europe, and parts of Asia, though they also appear in commercial property transactions worldwide.

🔧 Coverage typically extends for a long duration — commonly ten years in markets influenced by the French "décennale" tradition and the UK's National House Building Council (NHBC) model, though shorter or longer terms exist elsewhere. The [[Definition:Underwriting | underwriting]] process involves technical assessments of the building design, construction methods, and site conditions, often including phased inspections during construction by engineers appointed by the [[Definition:Insurer | insurer]] or warranty provider. [[Definition:Premium | Premiums]] are usually paid as a single upfront sum at the start of construction or upon completion and are calculated based on project value, construction type, and the provider's claims experience. In practice, some structural warranty products are issued by dedicated [[Definition:Managing general agent (MGA) | MGAs]] or specialist warranty providers who underwrite on behalf of [[Definition:Insurance carrier | carriers]], while in other markets a developer's own guarantee is backed by an insurance policy to ensure the promise survives even if the builder becomes insolvent.

🏠 Lenders frequently require structural warranties as a condition of mortgage finance, making them a de facto prerequisite for selling new-build residential properties in many jurisdictions. From a risk management standpoint, the inspection regime embedded in the warranty process acts as a quality control mechanism that can reduce the incidence of defects before they become costly [[Definition:Insurance claim | claims]]. For insurers, the long-tail nature of these policies — where claims can emerge years after [[Definition:Policy inception | inception]] — demands careful [[Definition:Reserving | reserving]] and actuarial analysis, particularly as construction techniques and building materials evolve. The growing focus on sustainable construction, modular building methods, and new materials such as cross-laminated timber is reshaping the risk profile of structural warranty portfolios and pushing underwriters to adapt their technical assessment capabilities.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Latent defect insurance (LDI)]]
* [[Definition:Construction insurance]]
* [[Definition:Professional indemnity insurance]]
* [[Definition:Surety bond]]
* [[Definition:Long-tail liability]]
* [[Definition:Warranty]]
{{Div col end}}

Definition:Structural warranty - Revision history

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