Earthquake Insurance in California: How a Seismic Retrofit Can Cut Your Premiums

The Real Cost of Earthquake Insurance in California

If you own a home in the Bay Area, you have probably looked into earthquake insurance at least once. And if you have, you probably experienced some sticker shock.

Standard homeowner’s insurance does not cover earthquake damage. That is a fact that surprises many California homeowners, particularly those who moved here from other states. If a major earthquake damages your home, your regular policy will not pay for structural repairs, foundation damage, or the cost of temporary housing while your home is rebuilt.

To cover earthquake damage, you need a separate earthquake insurance policy. And in California, those policies are not cheap.

What Does Earthquake Insurance Actually Cost?

The California Earthquake Authority (CEA) is the primary earthquake insurance provider in the state, backing roughly 70% of all residential earthquake policies. CEA is a publicly managed, not-for-profit organization created by the California legislature after the 1994 Northridge earthquake, which caused over $20 billion in damage and nearly bankrupted several private insurers.

Your CEA premium depends on several factors:

Location. This is the single biggest cost driver. Homes near active fault lines (the Hayward Fault in the East Bay, the San Andreas Fault along the Peninsula, the Calaveras Fault in the South Bay) pay significantly more than homes in areas with lower seismic risk. A home in Berkeley near the Hayward Fault might pay two to three times more than an identical home in Pleasanton.

Home value and replacement cost. Higher dwelling coverage amounts mean higher premiums. In the Bay Area, where home replacement costs commonly run $400 to $800 per square foot for new construction, dwelling coverage amounts are substantial.

Construction year and type. Older wood-frame homes built before 1979 are rated as higher risk because they predate modern seismic building codes. Newer homes built to current codes receive more favorable rates.

Foundation type. Homes with raised foundations (common in pre-1970s Bay Area construction) are rated differently than homes on slab foundations or post-tension foundations.

Deductible selection. CEA offers deductibles of 5%, 10%, 15%, 20%, or 25% of your dwelling coverage amount. Choosing a higher deductible lowers your premium but means you pay more out of pocket after an earthquake. On a home with $800,000 in dwelling coverage, a 15% deductible means you cover the first $120,000 of damage yourself.

Typical CEA Premium Ranges

For Bay Area homeowners, annual CEA premiums typically fall into these ranges:

• $800 to $1,500 per year: Newer homes (post-1980) on slab foundations, moderate seismic zones, higher deductibles (15% to 25%)
• $1,500 to $3,000 per year: Pre-1979 wood-frame homes with raised foundations, standard deductibles (10% to 15%), moderate to high seismic zones
• $3,000 to $5,000+ per year: Older homes near active fault lines, lower deductibles (5% to 10%), high replacement value, unretrofitted construction

These figures are for dwelling coverage only. Adding personal property coverage and lower deductibles pushes premiums higher.

The 2025 Rate Increase: 6.8% Across the Board

In 2025, CEA implemented an average rate increase of 6.8% across all policyholders. This increase reflected updated seismic risk modeling, increased construction costs (which raise the cost of claim payouts), and the need to maintain CEA’s claims-paying capacity.

For a homeowner paying $2,500 per year, the 6.8% increase added roughly $170 to the annual bill. For those paying $4,000 or more, the increase approached $275 annually.

CEA has stated that further rate adjustments are possible as new seismic research and construction cost data become available. The direction of these adjustments has consistently been upward.

This makes any available discount on your earthquake insurance premium more valuable than ever.

How Seismic Retrofit Discounts Work

CEA offers premium discounts of up to 25% for homeowners who complete a qualifying seismic retrofit. This is the single largest discount available on a CEA earthquake insurance policy.

The logic behind the discount is straightforward. Retrofitted homes suffer less damage in earthquakes. Less damage means smaller claims. Smaller claims mean CEA can offer lower premiums to homeowners who have reduced their risk.

What Qualifies for the Discount

To receive the CEA retrofit discount, your home must meet specific criteria:

Wood-frame construction. The discount applies to wood-frame homes, which make up the vast majority of residential construction in the Bay Area.

Built before 1980. The discount targets homes built before modern seismic codes were fully implemented. Homes built after 1980 were generally constructed to more stringent standards and are already rated more favorably.

Raised foundation. The retrofit discount specifically applies to homes with raised foundations (crawl space between the floor and the ground). Homes on slab foundations are not eligible for this particular discount because the retrofit techniques (foundation bolting, cripple wall bracing) apply to raised-foundation construction.

Code-compliant retrofit completed. The retrofit work must meet the requirements of FEMA P-1100 (the standard for residential seismic retrofitting) or your local jurisdiction’s equivalent standard. The work must include, at minimum, foundation bolting (connecting the wood framing to the concrete foundation with anchor bolts or plate connectors).

Verification submitted. Your contractor submits a Dwelling Retrofit Verification (DRV) form to CEA confirming that the work meets the qualifying standard. Your insurance company then applies the discount to your policy.

Discount Tiers

The size of your CEA discount depends on the scope of work completed:

• Foundation bolting only: Qualifies for a partial discount. This covers homes where the sill plate has been bolted to the foundation but cripple walls (if present) have not been braced.
• Full brace-and-bolt retrofit: Qualifies for the maximum discount of up to 25%. This includes foundation bolting plus structural plywood bracing of cripple walls in the crawl space.

For most Bay Area homeowners with pre-1979 raised-foundation homes, the full brace-and-bolt retrofit is the recommended approach. It addresses the two most common failure points (unbolted sill plates and unbraced cripple walls) and qualifies for the maximum insurance discount. Learn more about the differences in our guide to foundation bolting vs. full seismic retrofit.

Running the Numbers: Does the Retrofit Pay for Itself?

This is the question every homeowner asks. Let’s look at real numbers.

Scenario: Standard Brace-and-Bolt Retrofit

• Retrofit cost: $4,500 (typical for a standard raised-foundation Bay Area home; see our seismic retrofit cost guide for detailed pricing)
• EBB grant received: $3,000
• Net out-of-pocket cost: $1,500
• Annual CEA premium before discount: $2,500
• CEA discount (20%): $500 per year
• Years to recoup net cost: 3 years

After year three, the $500 annual savings is pure return. Over a 10-year period, you save $5,000 in insurance premiums alone, on a net investment of $1,500.

Scenario: No Grant Available

• Retrofit cost: $5,500
• EBB grant received: $0 (not in an eligible ZIP code or program is closed)
• Net out-of-pocket cost: $5,500
• Annual CEA premium before discount: $3,500
• CEA discount (25%): $875 per year
• Years to recoup net cost: approximately 6.3 years

Even without a grant, the retrofit pays for itself through insurance savings within about six years. And that calculation does not account for the value of the structural protection itself.

Scenario: Soft Story Retrofit

• Retrofit cost: $35,000
• ESS grant received: $13,000
• Net out-of-pocket cost: $22,000
• Annual CEA premium before discount: $4,500
• CEA discount (25%): $1,125 per year
• Years to recoup net cost from insurance savings alone: approximately 19.5 years

For soft story retrofits, the insurance savings alone do not recoup the cost quickly. But soft story retrofits are often required by local ordinance (San Francisco, Oakland, Berkeley all have mandatory programs), and the structural risk of not retrofitting a soft story building is severe. The insurance discount is one benefit among several.

CEA Coverage: What You Are Actually Buying

Before we go further into the retrofit discount math, it helps to understand exactly what a CEA earthquake insurance policy covers and does not cover.

What CEA Covers

Dwelling coverage. This pays to repair or rebuild your home’s structure after earthquake damage. You choose a coverage amount based on your home’s estimated replacement cost. Coverage amounts are available from $5,000 to $4 million.

Personal property coverage. This covers the cost to replace personal belongings (furniture, electronics, clothing) damaged by earthquake shaking. Coverage is optional and comes in $5,000, $25,000, $50,000, $100,000, $150,000, or $200,000 increments.

Loss of use. If your home is uninhabitable after an earthquake, this benefit covers temporary living expenses (hotel, rental, meals). Coverage comes in $1,500, $10,000, $15,000, $25,000, $50,000, $75,000, or $100,000 increments.

What CEA Does Not Cover

CEA policies have notable exclusions:

• Detached structures (garages, sheds, ADUs) unless you add an endorsement
• Swimming pools and spas
• External masonry (brick chimneys, stone veneer) unless caused by structural damage to the home
• Landscaping and land
• Vehicles
• Fire following earthquake (this is covered by your standard homeowner’s policy)

The Deductible Question

CEA deductibles are percentage-based, not flat dollar amounts. On a $1 million dwelling coverage policy:

Deductible	You Pay First	Your Annual Premium (approx.)
5%	$50,000	Highest
10%	$100,000	High
15%	$150,000	Moderate
20%	$200,000	Lower
25%	$250,000	Lowest

Many Bay Area homeowners choose 10% or 15% deductibles as a middle ground. The 25% discount from a seismic retrofit can make a lower deductible more affordable, giving you better coverage for less money.

With Retrofit vs. Without Retrofit: A 10-Year Comparison

Let’s compare the total cost picture for a Bay Area homeowner over 10 years under two scenarios.

Homeowner A: No Retrofit, No Earthquake Insurance

• Retrofit cost: $0
• Insurance premiums over 10 years: $0
• Total cost over 10 years: $0
• Earthquake risk exposure: Full. If a major earthquake hits, Homeowner A is responsible for all repair costs out of pocket. For a typical Bay Area home, this could range from $50,000 (moderate damage) to total loss ($1 million+).

Homeowner B: Seismic Retrofit + Discounted Earthquake Insurance

• Retrofit cost (net of EBB grant): $2,000
• Annual CEA premium (after 25% retrofit discount): $1,875
• Insurance premiums over 10 years: $18,750
• Total cost over 10 years: $20,750
• Earthquake risk exposure: Limited to deductible amount. Home is structurally strengthened to resist earthquake damage.

The choice depends on your risk tolerance, financial situation, and proximity to fault lines. But consider this: the USGS estimates a 72% probability of a magnitude 6.7+ earthquake in the Bay Area within the next 30 years. That is not a long-shot risk.

How to Get the Retrofit Discount on Your Policy

The process for securing the CEA retrofit discount is straightforward:

Step 1: Get a seismic assessment. A licensed structural engineer or experienced seismic retrofit contractor evaluates your home’s current condition and recommends the appropriate scope of work based on California’s retrofit requirements. For homes participating in the EBB program, the evaluation follows FEMA P-1100 guidelines.

Step 2: Complete the retrofit. A licensed contractor performs the retrofit work, which typically includes foundation bolting, cripple wall bracing, or both. For standard raised-foundation homes, the work usually takes one to three days. More information about the process is available in our seismic retrofit guide for the Bay Area.

Step 3: Submit the DRV form. Your contractor completes and signs a Dwelling Retrofit Verification form, which documents the work performed and confirms it meets CEA qualifying standards.

Step 4: Contact your insurance company. Provide the DRV form to your CEA participating insurance company. They apply the retrofit discount to your policy, typically effective at your next renewal.

Step 5: Keep your documentation. Store the DRV form, engineering plans, and permit documentation with your important papers. You will need them if you file a claim or sell your home.

Combining Retrofits with Grant Programs

California offers two main grant programs that can offset retrofit costs:

Earthquake Brace + Bolt (EBB)

• Grant amount: Up to $3,000 (plus up to $7,000 supplemental for income-eligible households)
• Eligible homes: Wood-frame, raised foundation, pre-1980 construction in eligible ZIP codes
• What it covers: Foundation bolting and cripple wall bracing
• Application: Annual enrollment through EarthquakeBraceBolt.com

Earthquake Soft-Story (ESS)

• Grant amount: Up to $13,000
• Eligible homes: Wood-frame soft story buildings (typically homes with garages or open ground floors on the lower level)
• What it covers: Steel moment frame installation, structural shear walls, and related soft story retrofit work
• Application: Separate enrollment through CRMP

When you combine a grant with the CEA insurance discount, the effective cost of retrofitting drops dramatically. A $4,500 brace-and-bolt retrofit funded with a $3,000 EBB grant costs you $1,500 out of pocket, and the 25% CEA discount saves you $500+ per year in perpetuity. That is a return on investment most financial advisors would be envious of.

Timing Considerations

Several factors affect the optimal timing for combining a retrofit with earthquake insurance:

Policy renewal dates. The CEA discount typically takes effect at your next policy renewal after the DRV form is submitted. Plan your retrofit accordingly to minimize the gap between completing the work and receiving the discount.

Grant program enrollment windows. EBB enrollment opens annually and often fills quickly. If you plan to use grant funding, begin the application process early. Check current enrollment dates at the EBB program website.

Planned remodeling work. If you are considering a home remodel, kitchen renovation, or foundation repair, combining the seismic retrofit with that project can reduce total costs by sharing permitting, engineering, and construction overhead.

Real estate transactions. If you are planning to sell your home, completing a retrofit and having the CEA discount in place adds value. Buyers see lower ongoing insurance costs as part of the total cost of ownership.

Alternatives to CEA Earthquake Insurance

While CEA is the dominant provider, a few private insurers also write earthquake policies in California. These include GeoVera, Palomar Specialty, and a handful of others. Private earthquake policies sometimes offer:

• Lower deductibles than CEA
• Coverage for items CEA excludes (pools, masonry, detached structures)
• Different premium structures

However, private earthquake insurers may not offer the same retrofit discount structure as CEA. If the retrofit discount is a key part of your financial plan, confirm the discount terms before choosing a provider.

The Bottom Line on Earthquake Insurance and Retrofits

For Bay Area homeowners with pre-1979 homes on raised foundations, the math points strongly toward getting a seismic retrofit:

1. The retrofit protects your home from catastrophic earthquake damage
2. The CEA discount saves you hundreds of dollars every year on insurance premiums
3. State grant programs can cover a significant portion of the retrofit cost
4. The retrofit adds to your home’s resale value and marketability
5. The combined benefit stream typically recoups the net retrofit cost within 3 to 7 years

Whether you currently have earthquake insurance or are considering purchasing a policy, a seismic retrofit makes the financial equation work better in every scenario. It lowers the cost of coverage if you have insurance, and it reduces the risk of catastrophic loss if you choose to self-insure.

If you are unsure whether your home qualifies for the retrofit discount, or you want an assessment of what retrofit work your home needs, contact our team for a consultation. We specialize in seismic retrofitting for Bay Area homes and can walk you through the grant application process, the retrofit scope, and the insurance discount documentation.