Four things decide your gap: whether you have extended replacement cost above your dwelling limit, how much building code upgrade coverage you carry, how long your additional living expenses run, and what advance you can get on contents. California law requires at least 10 percent of the dwelling limit for code upgrades, at least 24 months of living expenses after a declared disaster, and at least 36 months to collect full replacement cost. The rest depends on your specific policy.
- Code upgrade minimum
- 10% of dwelling limitRequired by California law
- Living expenses
- At least 24 monthsExtendable to 36 and beyond
- Time to collect full RCV
- At least 36 monthsIn a declared emergency
- Extended replacement cost
- A policy optionNot a legal requirement
Extended replacement cost is an endorsement, not a law
You will hear the phrase "the 110 percent rule" used about insurance. It is worth being careful with, because it describes a policy feature rather than a legal entitlement. Extended replacement cost pays a stated percentage above your dwelling limit when the real rebuild cost exceeds it, commonly 110, 120, 125 or 150 percent depending on what you bought.
It only responds when the loss is settled on a replacement-cost basis, when the actual rebuild cost exceeds the dwelling limit, and when you actually rebuild or repair. A cash-value settlement does not reach it.
Check your declarations page for the endorsement and the percentage. If it is not there, your dwelling limit is your dwelling limit.
Building code upgrade coverage, and why 10 percent is usually not enough
California requires replacement-cost dwelling policies to include building code upgrade coverage of at least 10 percent of the dwelling limit, and that coverage sits on top of the dwelling limit rather than eating into it.
It pays for three things: the value of undamaged portions that code forces you to demolish, the demolition and hauling of those portions, and the increased cost of building to current code. Standard coverage excludes the first of those, so this endorsement is the only thing that responds to a demolition order.
Here is the problem for a 2026 rebuild. Demolition draws from the same pool as the upgrades. On a $400,000 dwelling limit, 10 percent is $40,000, and demolition alone can consume most of it before a single code upgrade is paid for. Meanwhile you are rebuilding to current wildland-urban interface standards on a house that may have been built decades before they existed. Higher limits of 25 or 50 percent are commonly available and are what the shortfall arguments point toward.
If you are reading this before a loss rather than after one, this is the single cheapest coverage change you can make.
Living expenses, and how long they really run
For a covered loss tied to a declared state of emergency, California requires additional living expenses for at least 24 months from the loss. The insurer must grant up to 12 additional months, for a total of 36, where you are acting in good faith with reasonable diligence and facing delays outside your control, and further six-month extensions must be given for good cause.
Given that practitioners describe 18 to 30 months from design to completion on a custom rebuild, and that completions across both fires have been slow, the extension provisions are not a technicality. Document your diligence as you go: permit submittals, correspondence, contractor availability. That record is what supports an extension request.
Time to collect full replacement cost
In a declared emergency, California gives you no less than 36 months from the first actual cash value payment to collect the full replacement cost, against 12 months outside an emergency, with additional six-month extensions for good cause including permit delays, material shortages and contractor unavailability.
The practical implication is that you do not have to rush into a bad contract to beat a deadline. You do have to keep the file moving and document why, if it is slow.
Contents advances, and a date that matters
California requires an advance on personal property after a total loss in a declared emergency without requiring an itemised inventory. The percentage changed in 2026, and which rule applies to you depends on when your loss occurred.
Current law requires an offer of at least 60 percent of the personal property limit, up to $350,000. The rule in force for losses in January 2025 was lower and was calculated against a different coverage. If you are a Palisades or Eaton claimant, you were under the earlier rule, not the current one.
We are deliberately not publishing the earlier percentage here, because our sources conflict on which coverage it was calculated against, and getting that wrong would cost someone real money. Ask your adjuster to state in writing which statute and which percentage they are applying to your claim.
Other provisions worth knowing
- In a declared emergency the insurer cannot require proof of loss sooner than 100 days after the loss, with three-month extensions for good cause
- If your dwelling limit is insufficient, you may be able to combine payments for the primary dwelling and other structures up to policy limits
- After a total loss, your policy cannot deny code-upgrade or replacement-cost payments because you rebuild or buy at a new location, capped at the cost to rebuild at the original site, with no deduction for land value
- The California FAIR Plan is subject to the same advance-payment requirements on living expenses and contents as other insurers
What we do about it
We read your adjuster's estimate alongside our own line-item number and show you where they diverge and why. Adjuster estimating software and a real contractor bid frequently differ on fire hardening, site work, demolition of surviving elements and current code requirements, and those differences are arguable with documentation.
We are contractors, not public adjusters or lawyers. For a large gap, engage one or both. What we can give you is the construction evidence they need.
Los Angeles County figures, reviewed 2026-10-29 by America General Contractors, California contractor licence CSLB 1083262. Planning ranges, not a quote, and not legal advice. We confirm the current rules for your parcel before anything is drawn.
Questions
What is the single most common coverage shortfall?
Building code upgrade coverage at the 10 percent minimum, on a home being rebuilt to current wildland-urban interface standards. Demolition consumes much of it before upgrades are reached.
Can my living expenses really run three years?
At least 24 months is required after a declared emergency, with up to 12 more required where you are diligent and delayed by things outside your control, and further extensions for good cause. Keep a documented record of your diligence.
My adjuster's estimate is far below my contractor's bid. Is that normal?
It is common. The two are built differently. Ask for the adjuster's line-item estimate, put it beside the contractor's, and identify specifically where they differ. Most disputes resolve at the line level rather than at the total.
Does the FAIR Plan have to follow these rules?
The FAIR Plan has been subject to the same advance-payment requirements on living expenses and contents as other insurers. Its residential limit is currently $3.3 million per property, and a dwelling rate increase averaging 29.1 percent took effect in October 2026.
Should I get a public adjuster or a lawyer?
If the gap is large or the claim has stalled, yes, talk to one. We have no financial relationship with either and no referral arrangement. What we can do is provide the construction documentation that supports your position.
