Earthquake Insurance in San Francisco: Is CEA Coverage Worth It?

Earthquake insurance in San Francisco is worth it when a total loss would wipe out equity you cannot afford to lose and leave you paying a mortgage on rubble. It is not worth much when the deductible is larger than any damage you are likely to see, which is the case for a lot of modern condos. The decision turns on four numbers: your dwelling coverage, your deductible, your loan balance, and your reserves. Here is how the policies work and how to run that math.

What your homeowners policy excludes

Every standard HO-3 and HO-6 policy excludes earthquake damage, including the fire that follows a quake in some policies' fine print (check; most cover ensuing fire). California's mandatory offer law, Insurance Code 10081, requires your homeowners insurer to offer earthquake coverage when it writes your policy, so you will receive an offer you can accept or decline. The offer usually comes from the California Earthquake Authority, a publicly managed, privately funded, not-for-profit insurer that writes most of the state's residential earthquake policies and sells them only through participating homeowners insurers. You buy the CEA policy from the same company that sold you the homeowners policy; if that company does not participate (the FAIR Plan does not), you need a private earthquake carrier.

Lenders do not require earthquake coverage; Fannie Mae's property insurance rules are silent on it. If the house is destroyed, the loan is still owed.

How CEA policies are priced

CEA premiums are the same no matter which participating insurer sells them. What moves the price:

Third-party estimates for a $500,000 wood-frame dwelling run from under $1,000 to roughly $3,000 a year, CEA rates have been adjusted upward in recent filings, and an SF house with $1 million or more of dwelling coverage on a raised foundation lands well above that band; check current figures. As of 2026-10-24, run the CEA calculator for the actual address; it takes two minutes and uses the same inputs the insurer will.

Deductibles from 5% to 25%: what you would actually receive

The deductible is a percentage of the dwelling limit, chosen in 5% steps from 5% to 25%, and it is subtracted from the claim rather than paid out of pocket. The CEA also lets you set separate deductibles for the dwelling and for personal property, so you can carry a high dwelling deductible and still recover contents.

Take a house insured for $1,000,000 of dwelling coverage:

The pattern is the point. Earthquake insurance is catastrophe coverage; it will not pay for the kind of damage most quakes cause, and a 25% deductible on a $1,000,000 house means you absorb the first $250,000 alone. Pick the deductible by asking what loss would actually break you, then price that.

Private carriers vs the CEA

Private earthquake insurers compete on things the CEA does not offer: deductibles below 5% or applied differently, higher limits, coverage for pools, masonry veneer and detached structures, and sometimes a lower price on newer construction. They are also the only option if your homeowners carrier does not participate in the CEA or if you have a FAIR Plan policy. On an older raised-foundation SF house, the CEA is often cheaper; on a newer high-rise condo or a slab house, a private quote can win. Get one of each through a broker.

Condo owners: loss assessment and the master policy gap

Most HOA master policies exclude earthquake. After a damaging quake the association repairs the building from reserves and then levies a special assessment on every owner for the rest, which for a wood-frame building with a soft-story garage level can run to tens of thousands per unit or more. A CEA condo policy has four parts: building property coverage for your unit's interior (walls-in), personal property, loss of use, and loss assessment coverage that pays your share of an earthquake assessment up to a limit you choose, with its own deductible. Loss assessment is the piece most SF condo buyers should price first. Ask the HOA, as part of reading the HOA documents, whether the master policy carries any earthquake coverage and whether the building has been retrofitted under the city's soft-story program.

Retrofit discounts and the Brace and Bolt grant

A documented retrofit (foundation bolting, cripple wall bracing, water heater strapping) earns a CEA hazard reduction discount of up to 25% on an older house, and it reduces the chance of the one failure mode, sliding off the foundation, that turns a repair into a total loss. The state's Earthquake Brace + Bolt program pays grants of up to $3,000 toward a qualifying retrofit, with supplemental grants of up to $7,000 for income-eligible owners, registration opens in periodic windows by ZIP code, and eligibility has expanded over time. Typical brace-and-bolt jobs run in the low to mid thousands according to national cost guides, with Bay Area labor higher. If the inspection found an unbolted foundation, SF red flags covers what the fix involves; price it into your offer and plan the grant application for after close.

The honest worth-it analysis

Run four numbers:

1. Equity at risk. Purchase price minus loan balance, plus the down payment and closing costs you would lose if the structure is destroyed and you walk away. Land value survives a quake; the building and your equity in it may not.
2. Loan balance. A large loan against a destroyed house is the nightmare case: you owe the bank, and you need somewhere to live. Coverage that pays off the loan after the deductible has real value even if it never rebuilds the house.
3. Reserves. Could you absorb the deductible plus a year of alternative housing? If not, the policy's loss-of-use coverage alone may justify it.
4. Tolerance for a total loss. A 1910 house on an unbolted foundation in a liquefaction zone has a materially different loss distribution from a 2015 steel-frame condo. The USGS puts the Bay Area odds of a magnitude 6.7 or larger quake before 2043 at 72%; your building type decides what that means for you.

Coverage tends to be clearly worth it for a leveraged buyer of an older wood-frame house with modest reserves, and for a condo owner whose main exposure is a special assessment. It tends to be marginal for a buyer with 50% equity in a retrofitted building and ample savings, who can self-insure the deductible-sized losses that are most likely. There is no right answer, only an honest one.

How to buy it

Accept the CEA offer through your homeowners carrier, with coverage effective on your closing date, or decline it now and buy later; the offer renews periodically, and a private policy can be bought any time, though carriers pause new business for a period after a large quake. Set dwelling coverage to match your homeowners rebuild limit, choose the deductible from the table above, add loss of use, and for a condo set loss assessment first. Diary a review at renewal alongside your homeowners policy; insurance and maintenance after you buy covers that annual check.

What to shop for right now

A medium-savings item. CEA pricing is uniform across sellers, so the lever is the policy design: deductible, separate contents deductible, retrofit documentation worth up to 25%, and a private quote for comparison. The same SF house can differ by hundreds to more than a thousand dollars a year between those choices.