5.2 Dwelling Policy General Exclusions, Conditions & Endorsements (DP 01 31, DP 04 11, Broad Theft, DP 11 43)

Key Takeaways

  • Dwelling forms share general exclusions for ordinance or law, earth movement, water damage (flood, surface water, backup, subsurface water), power failure, neglect, war, nuclear hazard, intentional loss, and governmental action.
  • Key dwelling conditions include duties after loss, loss settlement, pair-or-set, appraisal, other insurance, suit against the insurer, mortgage clause, and no benefit to bailee.
  • The Automatic Increase in Insurance endorsement (DP 04 11) raises the Coverage A limit gradually through the policy year by the annual percentage shown.
  • Broad theft coverage is added by endorsement for owner-occupied dwellings because the base dwelling forms exclude theft of personal property.
  • Under the Dwelling Under Construction endorsement (DP 11 43), the Coverage A limit is provisional and applies in the proportion that the dwelling's actual value at the time of loss bears to its completed value.
Last updated: September 2026

General Exclusions

The ISO dwelling forms list general exclusions that apply to all three forms. Most are introduced by an anti-concurrent-causation (ACC) lead-in: the loss is excluded regardless of any other cause or event contributing concurrently or in any sequence (Section 3.2).

ExclusionWhat it removesCommon exception or nuance
Ordinance or lawIncreased costs caused by enforcing building codes, and demolition of undamaged partsDP-2 and DP-3 give a limited ordinance-or-law additional coverage; DP-1 needs an endorsement
Earth movementEarthquake, landslide, mudflow, sinkhole, subsidenceEnsuing fire or explosion is covered
Water damageFlood, surface water, waves, tidal water, storm surge, backup through sewers or drains, subsurface water pressureEnsuing fire, explosion, or theft (where theft is covered) is covered; flood requires NFIP or private flood coverage (Section 9.1)
Power failureFailure of power or utility service originating away from the described locationIf a covered peril ensues on the premises, the ensuing loss is covered
NeglectFailure to use reasonable means to protect property at and after a lossEchoes the Standard Fire Policy's neglect exclusion
WarDeclared or undeclared war, insurrection, rebellion, warlike actsIncludes discharge of a nuclear weapon, even if accidental
Nuclear hazardNuclear reaction, radiation, or contaminationDirect loss by ensuing fire is covered
Intentional lossLoss arising from an act committed by or at the direction of an insured with intent to cause lossOther insureds' rights depend on the form and New York law
Governmental actionDestruction or seizure by order of governmental authorityActs at the time of a fire to prevent its spread are covered

Vacancy: vandalism coverage (and in the broad and special forms, glass breakage) is not provided if the dwelling has been vacant more than 60 consecutive days immediately before the loss. A dwelling under construction is not considered vacant.

Conditions That Drive a Dwelling Claim

ConditionKey contentAdjusting tip
Insurable interest and limitPays no more than the insured's interest or the limitCommon with multiple owners of a rental
Duties after lossPrompt notice; protect property; inventory; exhibit damaged property; records; examination under oath; signed, sworn proof of loss when requestedNew York's § 3407 controls the proof-of-loss trigger (Section 11.1)
Loss settlementDP-1: actual cash value. DP-2/DP-3: replacement cost on buildings when insured to 80%, otherwise the greater of ACV or a proportional amount; personal property at ACVSame 80% logic as homeowners (Section 10.2)
Loss to a pair or setInsurer may repair or replace any part to restore the pair or set, or pay the difference in ACV before and after the lossAvoids paying for a whole set when one piece is damaged
AppraisalEach party selects an appraiser; the appraisers select an umpire; an agreement of any two sets the amount of lossMirrors the Standard Fire Policy's appraisal clause (Section 11.3)
Other insurancePro rata by limitsSee Section 4.2
Suit against usSuit only after compliance with policy provisions and within the policy's time limitNew York's Standard Fire Policy sets the floor at 24 months after inception of the loss for fire
Mortgage clauseProtects the named mortgagee; 10 days' notice of cancellation; mortgagee's proof of lossSection 11.3
No benefit to baileeBailees for hire cannot use the policySection 4.2
Loss payable clauseNames a loss payee on personal propertyPayee rights are no better than the insured's

Endorsements Named on the Series 17-62 Outline

Special Provisions — New York (DP 01 31)

Dwelling policies issued in New York carry a state special provisions (amendatory) endorsement. It conforms the national form to New York law, most importantly the cancellation and nonrenewal restrictions of Insurance Law § 3425 for covered residential policies and the Standard Fire Policy minimums in § 3404. When a national-form provision conflicts with the New York endorsement, the endorsement controls.

Automatic Increase in Insurance (DP 04 11)

This endorsement raises the Coverage A limit gradually through the policy year by the annual percentage shown in the schedule (for example, 4%). The increase is prorated to the date of loss, which helps a landlord keep pace with construction-cost inflation and preserve the 80% replacement-cost test.

Worked example: Coverage A of $300,000 with a 6% annual automatic increase; loss at mid-term (half the policy year). Available Coverage A ≈ $300,000 + ($300,000 × 6% × 0.5) = $309,000.

Broad Theft Coverage (DP 04 72; the outline also lists DP 04 83)

Because the dwelling forms do not cover theft, owners who occupy the dwelling can add broad theft coverage. It covers theft, attempted theft, and vandalism following theft of covered personal property, both on and off the described location, subject to special limits for items such as money, securities, jewelry, and firearms. For non-owner-occupied dwellings, ISO offers a more limited theft endorsement (DP 04 73) that protects the landlord's property at the rented dwelling on a narrower basis.

Dwelling Under Construction (DP 11 43)

For a dwelling being built, the endorsement makes the Coverage A limit provisional. The limit is shown at the dwelling's completed value. At the time of loss, the amount of insurance equals that limit multiplied by the proportion that the dwelling's actual value on the loss date bears to its completed value. This lets the insured buy one policy at completed value while premium and recovery track the building's partially completed state.

Example: completed value and Coverage A limit $500,000; actual value at the time of a fire $200,000 (40%). The provisional amount of insurance is 40% × $500,000 = $200,000, and the loss is adjusted within that amount.

Test Your Knowledge

A covered dwelling policy (DP-3) is written on a rental house. An earthquake cracks the foundation and ruptures a gas line, and a fire follows that destroys the house. How is the loss treated?

A
B
C
D
Test Your Knowledge

A dwelling policy includes the Automatic Increase in Insurance endorsement (DP 04 11) with a 4% annual increase and a $250,000 Coverage A limit. A covered total loss occurs exactly one-quarter of the way through the policy year. What Coverage A limit is available?

A
B
C
D
Test Your Knowledge

Under the Dwelling Under Construction endorsement (DP 11 43), the completed value and Coverage A limit are $400,000. When fire strikes, the dwelling's actual value is $160,000. What is the provisional amount of insurance?

A
B
C
D