Builders risk insurance explained
Checked 2026-09-04 · 7 min read

§ 1What it is
Builders risk insures the thing being built. Fire, wind, theft of materials, vandalism, collapse during construction — property damage to a structure that does not yet exist as a finished building, and therefore cannot sit on a normal property policy.
It is not liability cover. If a passer-by is injured, that is general liability. If the half-built structure burns down, that is builders risk. Both, on most jobs.
§ 2Who buys it
Whoever the contract says. On residential work the owner often carries it; on commercial work the general contractor often does. What matters is that somebody does, and that everyone with an interest is named — owner, general, lender, and frequently key subs.
“The owner has it” is not a named-insured status.
If your materials burn on a policy you are not named on, you are a claimant against somebody else’s insurer, not an insured. Get named, or carry your own.
§ 3The completed-value basis
A builders risk limit is normally the completed value of the project — what the finished structure will be worth, not what has been installed so far. The premium reflects that the exposure grows through the build.
| Input | Effect | Why |
|---|---|---|
| Completed value | Sets the limit and most of the premium | It is the maximum loss |
| Construction type | Frame costs more than masonry or steel | Fire exposure |
| Term length | Longer builds cost more | More time at risk |
| Deductible | Higher deductible, lower premium | Retained risk |
| Location | Wind, flood and wildfire zones cost more | Catastrophe exposure |
Our builders risk calculator takes completed value, term and deductible and returns the band those three imply, before location loading.
§ 4The usual gaps
Four things a standard policy usually leaves out, each of which can be added — and each of which is expensive to discover after a loss.
- Soft costs. Extra interest, extra rent, redrawn plans, additional permits. The rebuild is covered; the delay around it is not, unless soft-cost cover is added.
- Off-site and in-transit materials. The generator stolen from the yard before it reached the job, or off the truck.
- Faulty workmanship. The bad work is excluded; resulting damage to other property may not be — read the wording, this varies more than any other clause.
- Water and earth movement. Flood and earthquake are usually separate, in every zone.
§ 5When it ends
A builders risk policy terminates on an event, not just on a date: occupancy, acceptance, or the expiry of the term — whichever comes first. Partial occupancy of a finished wing while the rest is under construction is the classic trap; some wordings end cover for the whole project at that moment.
Two dates need to meet: the day builders risk ends and the day the permanent property policy begins. Any gap is uninsured, and a project handed over on a Friday with a policy starting Monday is a real, and common, three-day hole.

Checked against
- CSLB — Limited Liability Company (LLC) licencesread 2026-09-04
Not legal advice. Fees, bond amounts and deadlines are set by statute and change without notice — confirm with the board that issues your licence before you file.