3.2 Dwelling Coverages A-E and Other Coverages

The Five Dwelling Coverage Letters

The ISO dwelling forms organize property coverage under five lettered limits. Note the differences from the HO program — there is no Coverage F (Medical Payments) because dwelling forms carry no liability, and the letters E and D mean different things than in an HO policy.

Coverage A and B — Buildings

Coverage A (Dwelling) insures the principal building including structures attached to it, and building materials/supplies on or adjacent to the premises used to alter the dwelling. Coverage B (Other Structures) covers detached structures.

The internal limits are driven off Coverage A. Coverage B is automatically provided at 10% of Coverage A as an additional amount of insurance (it adds to, not subtracts from, the Cov A limit). So a dwelling written for $300,000 carries $30,000 of Coverage B without reducing the $300,000 building limit. Structures rented to others or used for business generally fall outside Coverage B unless endorsed.

Coverage C, D, and E — Contents and Loss of Use

Coverage C (Personal Property) is optional and is usually a percentage the insured selects. In the DP forms, contents at the described location are covered; an automatic 10% of Coverage C extends off-premises (worldwide on personal property), and the DP limits Coverage C to property of the insured and family — not a tenant's goods.

Coverage D (Fair Rental Value) and Coverage E (Additional Living Expense) together equal a combined 20% of Coverage A in DP-2/DP-3 (and 10% in DP-1, where E may be limited). Cov D applies when the dwelling is rented to others and a covered loss interrupts the rent; Cov E applies when the owner occupies and must live elsewhere. Both pay only for the shortest time to repair/replace or for the household to settle permanently — they are not blank checks.

Worked Example — Coverage Percentages

Assume a DP-3 with Coverage A = $250,000 and the insured selected Coverage C = $100,000.

• Coverage B = 10% of A = $25,000 (additional)
• Off-premises personal property = 10% of C = $10,000
• Coverage D + E combined = 20% of A = $50,000

If a covered fire makes the rented dwelling untenantable and the lost monthly rent is $2,000 with a 6-month repair, the Coverage D payment is 6 × $2,000 = $12,000, well within the $50,000 D/E pool. The insurer pays the actual lost rent, not the full 20% limit — the percentage is a cap, not an automatic payout.

Contents Valuation and Coverage C Notes

While DP-2 and DP-3 settle the building at replacement cost, personal property (Coverage C) is settled at ACV under the dwelling forms unless a personal-property replacement-cost endorsement is added. So a 10-year-old sofa destroyed by a covered fire pays its depreciated value, not the cost of a new one. This building-RC / contents-ACV split surprises many candidates.

Coverage C also carries special internal sublimits for theft-susceptible categories (money, securities, jewelry, firearms, silverware) where theft coverage applies, mirroring the HO sublimits. And because DP Coverage C insures only the named insured's and resident family's property, a tenant's own belongings in a rented dwelling are NOT covered — the tenant needs an HO-4 renters policy.

Other Coverages (Additional Coverages)

The forms grant several Other Coverages that do not reduce the main limits:

These provisions extend the policy's reach without eroding the core A-through-E limits, which is exactly why the exam asks whether each adds to or reduces the main coverage.

Standard Coverage Relationships and Loss of Use Splits

The dwelling forms link the coverages through fixed percentage relationships the exam expects candidates to recall. Coverage B (Other Structures) is typically 10% of Coverage A as an additional amount of insurance, not a sublimit that erodes the dwelling limit. Coverage C (Personal Property) in the DP forms is usually a percentage that the insured may select, and unlike the homeowners forms it is not automatically a fixed 50% of Coverage A.

Coverage D (Fair Rental Value) and Coverage E (Additional Living Expense) together address loss of use, but their split depends on occupancy. For a rented dwelling, the loss is fair rental value — the income the owner loses while the property is untenantable. For an owner-occupant, it is additional living expense — the extra cost of temporary housing. Both are limited to the time reasonably required to repair or replace, capped by the policy's stated limit or period, and neither pays ongoing expenses that continue regardless of the loss.