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🏠 '''Homeowner's insurance''' is a bundled [[Definition:Property and casualty insurance (P&C) | property and casualty]] policy that protects an individual's residence against physical damage and provides [[Definition:Liability coverage | liability coverage]] for incidents occurring on or related to the property. In the United States, standardized forms such as the HO-3 — developed by the [[Definition:Insurance Services Office (ISO) | Insurance Services Office (ISO)]] — serve as the backbone for most residential policies, while other markets structure coverage differently: in the United Kingdom, buildings and contents insurance are often sold as separate or combined products, and across much of Continental Europe and Asia, residential coverage is shaped by local [[Definition:Peril | peril]] exposure and regulatory traditions rather than a single dominant form.

🔧 A typical homeowner's policy bundles several distinct coverages into a single contract. Dwelling coverage insures the structure itself against named or open perils, while personal property coverage extends to the policyholder's belongings. [[Definition:Loss of use coverage | Loss of use]] provisions reimburse additional living expenses when the home becomes uninhabitable, and the liability section responds to [[Definition:Bodily injury | bodily injury]] or [[Definition:Property damage | property damage]] claims brought by third parties. [[Definition:Deductible | Deductibles]] — sometimes expressed as a flat amount, sometimes as a percentage of the dwelling value for catastrophe perils like windstorm or earthquake — determine the policyholder's retained portion of each loss. Insurers price these policies using a blend of property-specific attributes (construction type, age, location, protective devices) and broader [[Definition:Catastrophe modeling | catastrophe model]] output that estimates exposure to events such as [[Definition:Hurricane | hurricanes]], [[Definition:Wildfire | wildfires]], or [[Definition:Flood insurance | flooding]], though flood and earthquake coverage is frequently excluded from standard forms and requires separate purchase.

📊 Homeowner's insurance occupies a critical position in the personal lines market and in the broader economy, because residential property represents the single largest asset for most households. For insurers, the line poses particular challenges: losses are highly correlated geographically, and a single [[Definition:Catastrophe event | catastrophe event]] can produce thousands of simultaneous claims. Rising [[Definition:Climate risk | climate risk]], escalating replacement costs, and increasing [[Definition:Litigation risk | litigation activity]] in certain jurisdictions have pressured [[Definition:Loss ratio | loss ratios]] and driven carriers to reassess their appetite in exposed regions — a trend visible in markets from Florida and California to parts of Australia and southern France. These dynamics ripple into [[Definition:Reinsurance | reinsurance]] markets and have spurred innovation in [[Definition:Parametric insurance | parametric products]], [[Definition:Insurtech | insurtech]]-driven underwriting, and government-backed [[Definition:Residual market | residual market mechanisms]] designed to maintain availability where private carriers retreat.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Property insurance]]
* [[Definition:Liability insurance]]
* [[Definition:Catastrophe modeling]]
* [[Definition:Personal lines insurance]]
* [[Definition:Flood insurance]]
* [[Definition:Replacement cost]]
{{Div col end}}

Definition:Homeowner's insurance - Revision history

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