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Property and Casualty Insurance · Property Insurance · 8 min read

Homeowners Exclusions and Conditions

In this lesson you will
  • Identify major property and liability exclusions found in standard ISO homeowners policies.
  • Differentiate between vacant and unoccupied property and describe how each status impacts homeowners coverage.
  • Explain key homeowners policy conditions, including post-loss duties, appraisal, suit against the insurer, and the standard mortgage clause.

Standard Property Exclusions (Section I)

A standard homeowners policy provides broad protection, but it does not cover every type of loss. Standard ISO forms contain major exclusions that apply to property coverage under Section I. For example, standard homeowners policies exclude loss caused by flood, surface water, waves, and water backing up through sewers or drains. Earth movement, including earthquake, landslide, mudflow, and earth sinkhole, is also excluded. Insurers may use their own forms and endorsements to add coverage back, but the base contract excludes these perils.

Other common general exclusions address public hazards and intentional acts. War, insurrection, rebellion, and nuclear hazard are standard perils excluded from property coverage. Intentional loss committed by or at the direction of any insured is excluded. Furthermore, the neglect of the insured to use all reasonable means to save and preserve property at and after the time of a loss is excluded. If a power failure occurs off the residence premises, standard homeowners policies exclude that loss, but they may cover an ensuing loss on the residence premises caused by a covered peril, such as a resulting fire.

Governments sometimes seize or demolish property for public safety. Standard ISO homeowners policies generally exclude loss caused by governmental action, but the exclusion does not apply to destruction ordered by a governmental authority at the time of a fire to prevent its spread, if the fire loss would be covered. For instance, if local authorities demolish an outbuilding to create a firebreak that stops a spreading wildfire, that specific loss falls within the exception and can be covered.

Everyday maintenance issues are also excluded. Standard homeowners property coverage excludes losses resulting from wear and tear, marring, and gradual deterioration. Mechanical breakdown, latent defects, and inherent vice are excluded causes of loss. Smog, rust, corrosion, wet rot, and dry rot are excluded maintenance-related perils. Property damage caused by birds, vermin, rodents, or insects is excluded. Under the standard ISO HO-3 form, damage caused by an animal owned or kept by an insured is excluded from dwelling and other structures coverage, while personal property coverage is generally limited to named perils. In addition, settling, shrinking, bulging, or expansion of pavements, foundations, walls, or floors is excluded. Weather conditions are excluded from dwelling and other structures coverage under the HO-3 when they contribute to an excluded event, such as flood or earth movement. Finally, faulty, inadequate, or defective planning, zoning, design, workmanship, or maintenance is excluded.

Exam tip. Watch for questions that involve multi-step events. If high winds drive rain that causes local flooding, remember that flood and surface water are excluded. Furthermore, under the HO-3 form, weather conditions that contribute to an excluded event like a flood or mudflow remain excluded.

Common mistakes

  • Thinking an empty home whose owners are on a long vacation is vacant. Furnishings make it unoccupied, which does not trigger the 60-day vacancy exclusion for vandalism.
  • Believing that the appraisal process decides whether a claim is covered. Appraisal only resolves disputes about the amount of the loss, not coverage disputes.
  • Assuming an insured's arson stops the bank from collecting insurance proceeds. Under the standard mortgage clause, an innocent mortgagee's valid claim is protected even if the insured intentionally destroys the property.
  • Assuming Section II personal liability pays for damage to your own property. Section II excludes damage to property owned by an insured; you must file under Section I property coverage instead.

Key points

  • Standard homeowners property coverage excludes flood, earth movement, off-premises power failure, war, nuclear hazards, intentional loss, neglect, and typical maintenance perils like wear and tear, rust, and rot.
  • Governmental destruction of property is generally excluded, but standard policies include an exception for destruction ordered to halt the spread of fire.
  • Section II liability generally excludes business activities, professional services, expected or intended injury, and liability involving certain motor vehicles, watercraft, and aircraft, subject to the policy's specific exceptions.
  • A vacant dwelling lacks occupants and sufficient furnishings for habitation, even if some furnishings remain; an unoccupied dwelling has sufficient furnishings but no occupants. The standard ISO HO-3 excludes vandalism if the dwelling was vacant for more than 60 consecutive days immediately before the loss.
  • Following a loss, an insured must give prompt notice, report theft to the police, protect the property, and inventory damaged personal property; the insured must also submit to examination under oath and provide a signed, sworn proof of loss when the insurer reasonably requires them.
  • The appraisal process resolves disputes over the loss amount through two appraisers and an umpire, requiring an agreement of any two participants to set the final loss amount.
  • The standard mortgage clause preserves an innocent lender's right to recovery despite the insured's neglect or intentional acts, allows the lender to pay premiums, and guarantees advance notice of cancellation or nonrenewal.

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Original lesson written for Property and Casualty Insurance practice · updated October 31, 2026. Exam names are trademarks of their owners; tests.global is not affiliated with them.