3.3 Dwelling Perils, Conditions, and Endorsements
Key Takeaways
- Coinsurance recovery = (Carried / Required) x Loss - Deductible, where Required = 80% of replacement cost.
- Coinsurance penalties apply to PARTIAL losses; total losses are capped at the policy limit.
- Appraisal resolves amount-of-loss disputes only, never coverage disputes.
- V&MM and glass coverage suspend after 60 consecutive days of vacancy.
- Theft and liability are NEVER automatic on dwelling forms; both require endorsement (e.g., DP 04 72, DL 24 01).
Perils and the Coinsurance Condition
The single most-tested dwelling condition is coinsurance. The DP-2 and DP-3 require the insured to carry at least 80% of replacement cost on Coverage A to collect full replacement cost on a partial loss. If underinsured, the recovery is reduced by the coinsurance penalty.
The formula tested on the exam is:
Recovery = (Carried Limit / Required Limit) x Loss − Deductible
where Required Limit = 80% x Replacement Cost. If the carried limit equals or exceeds the required limit, replacement cost is paid in full (up to the policy limit) with no penalty.
Worked Coinsurance Example
A dwelling has a replacement cost of $300,000. The required amount is 80% x $300,000 = $240,000. The owner insures it for only $180,000 and suffers a $60,000 partial fire loss with a $1,000 deductible.
Step 1: Did/Carried ratio = $180,000 / $240,000 = 0.75. Step 2: Apply ratio to loss = 0.75 x $60,000 = $45,000. Step 3: Subtract deductible = $45,000 − $1,000 = $44,000 paid.
The insured absorbs $16,000 of penalty plus the deductible because they failed the 80% test. Trap: Coinsurance applies to partial losses; a total loss is still capped at the policy limit ($180,000 here), and many states forbid applying the penalty to reduce a total-loss recovery below the policy limit.
Key Policy Conditions
- Loss Settlement — ACV for DP-1 and for personal property; replacement cost (with coinsurance) for the dwelling on DP-2/DP-3.
- Vacancy — V&MM and glass breakage are suspended after 60 consecutive days of vacancy; some perils reduced 15%.
- Pair or Set, Appraisal (used when insurer and insured dispute amount, not coverage), Subrogation, Mortgage Clause (protects the named mortgagee even if the insured's act voids coverage), and Loss to a Pair or Set.
- Other Insurance — pro-rata sharing among policies covering the same loss.
Trap: The Appraisal condition resolves disputes over the amount of loss, never over whether coverage applies. Coverage disputes go to court, not appraisal.
Common Endorsements
Because the base dwelling form has no liability, the most common endorsements broaden or add coverage:
| Endorsement | Function |
|---|---|
| Personal Liability Supplement / DL 24 01 | Adds liability and medical payments to others |
| Broad Theft Coverage (DP 04 72) | Adds on/off-premises theft for owner-occupants |
| Dwelling Under Construction (DP 11 43) | Adjusts limit/premium to track construction value |
| Automatic Increase in Insurance | Inflation guard raising Coverage A periodically |
| Special Provisions / state amendatory | State-specific changes |
| Ordinance or Law | Funds increased rebuild cost to meet current codes |
Trap: Theft is not automatically included on any dwelling form; it must be endorsed (DP 04 72), and theft coverage is generally available only to owner-occupants, not to landlords on tenant-occupied rentals.
Perils, Key Conditions, and Common Endorsements
The dwelling forms escalate in covered perils. The DP-1 basic insures fire, lightning, and internal explosion; adding Extended Coverage (EC) brings windstorm, hail, explosion, riot/civil commotion, aircraft, vehicles, smoke, and volcanic eruption; V&MM adds vandalism and malicious mischief. DP-2 is broad named-peril, and DP-3 is open-peril on the structure.
| Standard exclusions (all DP forms) |
|---|
| Flood / surface water |
| Earth movement (earthquake, sinkhole - addable by endorsement) |
| War and nuclear hazard |
| Ordinance or law |
| Neglect and intentional loss |
Common endorsements: Personal Liability Supplement (adds Coverage L and M), Broad Theft / Limited Theft coverage (theft is not automatically covered on a dwelling form), Dwelling Under Construction, Automatic Increase in Insurance, and Earthquake.
Exam trap: Theft is NOT a covered peril on the dwelling forms in their base versions - it must be added by a theft endorsement (and the dwelling must usually be owner-occupied for broad theft). This is a frequent contrast with the homeowners policy, where theft is built in. Also remember the standard vs. open-perils windstorm treatment in coastal areas, where windstorm may be excluded and written through a separate windstorm pool or the Mississippi Windstorm Underwriting Association.
Conditions and the Coastal Windstorm Problem
The dwelling forms carry the standard property conditions - duties after loss, proof of loss, appraisal for amount disputes, subrogation, the mortgage clause, and the prohibition on abandonment. The vacancy provision suspends vandalism and certain water losses after 60 days of vacancy and cuts other recoveries.
In coastal Mississippi, the windstorm peril is the dominant underwriting issue. Standard carriers frequently exclude or sub-limit wind/hail within the wind pool zone, requiring a separate windstorm and hail policy through the Mississippi Windstorm Underwriting Association (the "wind pool"), which serves the six coastal counties. Hurricane/named-storm losses then carry a percentage deductible applied to the dwelling limit.
Exam tip: When a base dwelling policy excludes wind in a coastal area, the insured layers a wind-pool policy on top - know that the residual market mechanism exists and that the percentage windstorm deductible is calculated on the Coverage A limit, not on the loss. This pairing of an excluded peril plus a residual-market backstop is exactly how Mississippi handles catastrophe-exposed property.
A DP-3 dwelling has a replacement cost of $250,000 and is insured for $160,000. A windstorm causes a $50,000 partial loss; the deductible is $2,000. Applying the 80% coinsurance clause, what does the policy pay?
An insured and the company agree that a kitchen fire is covered but disagree on the dollar amount of the loss. Which policy condition is designed to resolve this?