What it means
General liability insurance can respond when an insured business is legally liable for damage to someone else's property. It is not the same as first-party property insurance for the business's own building or equipment.
The broad form property damage language arose in an older generation of liability policies with different exclusions. Some older forms excluded damage involving property under the insured's care, custody or control or property on which it was working, and a broad form endorsement could revise parts of that exclusion structure.
The actual added cover depended on the endorsement and its policy edition, not the reassuring word broad. Insurance Services Office revisions in the 1980s changed the standard commercial general liability form.
IRMI's historical review explains that the separate broad form property damage label ceased to be used by ISO in connection with CGL, while many contracts continued to ask for it. This makes the term a frequent source of stale certificate requests.
A contractor who receives a request for broad form property damage should not promise to attach an obsolete form automatically, but should ask what property-damage exposure the owner wants protected, identify the current CGL edition and endorsements, and have the insurer or broker explain how that exposure is addressed. Coverage for damage caused by a subcontractor can be central to a construction dispute, but a broad historical label does not settle the modern policy's treatment of the contractor's own work, completed operations or damage to other property.
Those questions depend on definitions, exceptions and endorsements. An owner may also need builder's risk insurance for physical damage to a project during construction, which is a different policy protecting insured project property rather than third-party liability.
Liability coverage should not be used as a substitute simply because both policies mention property damage. If a contract drafted years ago requires an endorsement by name, the parties may need to update the requirement rather than hunt for a product no longer issued in that form.
The revised clause should describe the intended risk and acceptable contemporary evidence, and legal and insurance advisers should check it before a contractor signs.
In practice
Real-world examples.
Example
A city bid says contractors must carry broad form property damage coverage. A bidder asks the city which construction liability exposure it means and supplies the current CGL wording rather than checking a box for an unattached endorsement.
Example
An owner worries that a subcontractor may damage completed work. The risk manager reviews the CGL's property-damage exclusions and subcontractor-related exceptions, plus the separate builder's risk policy, instead of relying on a certificate heading.
Example
A consultant finds a 1970s insurance clause copied into a new project contract. She proposes a risk-specific requirement and asks coverage counsel to compare it with the insurer's current forms before either party promises compliance.
Formula
Calculation
Illustrative liability review: uninsured exposure = estimated third-party property-damage loss - potential payment under the actual CGL terms, floored at zero. If a $600,000 claim has a $500,000 applicable limit and no other limiting terms in this simplified example, the potential gap is at least $100,000. Real claims turn on liability, deductibles, exclusions, and the policy's limit structure; the historical endorsement name is not part of this arithmetic.Case study
Seen in the real world.
Fictional example: Eastbank Builders won a renovation bid whose insurance schedule required a broad form property damage endorsement. Its insurer said it did not issue a separate ISO endorsement under that old name. Project manager Amira initially feared the team had no cover for accidental damage to the owner's property. Amira sent the owner the current CGL form and asked what loss scenario the clause intended to address. The owner identified damage by subcontractors to finished portions of the building.
Broker and counsel reviewed the CGL exclusions, any relevant exceptions, the builder's risk policy, and the contractual allocation of risk. The parties rewrote the insurance schedule to describe the required contemporary coverage and evidence. They did not state that every subcontractor loss would be paid; they documented the remaining exclusions. The old label had exposed an unclear contract, not proved an absence or presence of cover.
Watch out
Common mistakes.
- Assuming the named historical endorsement must appear on every modern CGL policy to obtain any third-party property-damage cover.
- Treating a certificate or broker assurance as an amendment to the actual exclusions and endorsements.
- Confusing contractor liability insurance with first-party builders risk cover for the insured project.
Questions
People also ask.
Is this endorsement still a standard separate requirement?
The old ISO broad-form label is generally historical. Current CGL forms may address much of the intended scope, but the actual wording still matters.
Does modern CGL pay every property-damage claim?
No. Liability, exclusions, limits, deductibles, and endorsements still decide the outcome.
What if a contract demands the old wording?
Clarify the intended risk, compare it with the current issued forms, and revise the requirement with insurance and legal advice if needed.
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