What You’ll Learn:
- What actually counts as an “other structure” on your property.
- How standard home insurance covers these structures.
- Why California’s unique challenges often mean standard coverage isn’t enough.
- How to figure out if you have enough coverage for your sheds, fences, and more.
- Steps to increase your protection when needed.
- The specific impact of California wildfires on other structures coverage.
The Shed in the Backyard: More Than Just a Storage Spot
You’ve got a home in California. Maybe it’s a cozy bungalow in Silver Lake, a sprawling ranch in the Inland Empire, or a coastal retreat in Ventura County. Your main house – the dwelling itself – probably gets most of your attention when you think about insurance. But what about everything else on your property? That detached garage, the fancy new pergola, the fence that keeps Fido safe, or even a standalone art studio?
These aren’t just minor additions. They’re valuable assets. And in California, where property values and rebuilding costs can skyrocket, understanding how your home insurance protects these “other structures” isn’t just smart; it’s practically essential. Many homeowners just assume everything’s covered. Not always. The real answer is more complicated.
Step 1: Understanding “Other Structures” on Your Property
Let’s get specific. When your insurance company talks about “other structures,” they’re referring to buildings or features on your property that are *not* physically attached to your main dwelling. Think of it this way: if you could pick it up and move it without damaging your house, it’s likely an “other structure.”
What sorts of things are we talking about? A simple storage shed, for sure. A detached garage, absolutely. Maybe you’ve got a pool house, a guesthouse, or a separate workshop out back. Even fences, gazebos, pergolas, and retaining walls often fall into this category. Sometimes, things like a standalone solar panel array or a fixed playground structure can qualify too.
But here’s the thing: if something is *attached* to your main house – say, a deck built directly onto the back wall or an attached garage – that’s usually considered part of the main dwelling. It falls under Coverage A, your dwelling coverage, not Coverage B, which is for other structures. Big difference.

Step 2: How Other Structures Coverage (Coverage B) Works
Most standard homeowners policies (HO-3, for example) include something called Coverage B, or “Other Structures” coverage. This coverage is usually set as a percentage of your main dwelling coverage (Coverage A). For most policies, that percentage is around 10%.
So, if your main house is insured for $500,000, your other structures might automatically be covered for $50,000. This coverage protects these structures from the same perils that threaten your main house: fire, windstorms, hail, vandalism, and sometimes even falling objects. Just like your main dwelling, your other structures are typically covered for their replacement cost, meaning the insurer would pay to rebuild them with new materials, without deducting for depreciation. But wait — sometimes, especially with older or less valuable structures, policies might only offer Actual Cash Value (ACV), which *does* factor in depreciation. It’s a detail worth checking.
Step 3: Why Standard Coverage B Might Not Be Enough in California
Honestly, that standard 10% often isn’t enough for many California homeowners. Why? Our state has some unique quirks.
For one, construction costs here are notoriously high. Rebuilding a shed or a detached garage, even a small one, can easily run into tens of thousands of dollars. If you’ve got a custom-built workshop or a substantial outdoor kitchen – common in places like Orange County or the Santa Ynez Valley – that 10% figure probably won’t even scratch the surface of replacement costs.
Which brings up something most people miss: Accessory Dwelling Units (ADUs). These secondary units, whether they’re detached guest houses or garage conversions, have become incredibly popular across California, from the Bay Area down to San Diego. An ADU can add hundreds of thousands of dollars in value to your property. If your main house is insured for $700,000, that standard 10% gives you $70,000 for *all* your other structures. A fully-equipped ADU could easily cost $150,000 or more to rebuild. You can see the problem.
Then there’s the wildfire risk. In many parts of the state – the foothills of the Sierra Nevada, areas around Santa Cruz, or the brushy canyons of Malibu – a wildfire can devastate an entire property, including every detached structure. If you’re underinsured for these structures, you’re looking at a huge out-of-pocket expense.

Step 4: Assessing Your Needs — What’s Your “Other Structure” Value?
So, how do you know if you’re adequately covered? It’s not rocket science, but it does take a little legwork. Start by taking a literal walk around your property.
Make a list of every detached structure. A fence? Write it down. Your kids’ elaborate treehouse? Yep. That sturdy shed where you keep your gardening tools? Add it to the list. Don’t forget the pool equipment enclosure or that fancy new gazebo. For each item, try to estimate what it would cost to rebuild it from scratch today, not what you paid for it five years ago. Think about current material costs, labor, and permits. You might be surprised.
For fences, consider their length and material. A simple chain-link fence is one thing; a custom-built redwood fence spanning your entire property is quite another. For larger structures like detached garages or ADUs, you’ll need a more accurate estimate. Sometimes, a local contractor can give you a ballpark figure for rebuilding specific structures.
Add up all these estimated replacement costs. Compare that total to your current Coverage B limit. Does it look like you’re in the ballpark? Or are you way off? For many California homeowners, the answer is often “way off.”
Step 5: Increasing Your Other Structures Coverage
If your assessment shows you’re underinsured, don’t panic. You can usually increase your Coverage B limits. Most insurers allow you to raise this percentage beyond the standard 10%. You might be able to get 15%, 20%, or even more, depending on your needs and the insurer’s guidelines. This is a simple adjustment to your policy, often called an “endorsement.”
But wait — for especially valuable structures like ADUs, you might even need a separate policy or a specific endorsement that treats the ADU more like a secondary dwelling. Some carriers have specific rules for ADUs, recognizing they’re often much more than just a shed. Discussing these options with an experienced agent is key. Yes, increasing your coverage will likely mean a slightly higher premium. But weigh that against the potential cost of rebuilding a $100,000 structure out of your own pocket. The peace of mind alone is often worth it.
Step 6: The Wildfire Factor and Other California Specifics
California’s wildfire crisis has dramatically changed the insurance landscape. Insurers are pulling back from high-risk areas – places like the foothills of the Sierra Nevada, parts of Sonoma County, or even brush-adjacent neighborhoods in the Valley. This doesn’t just impact your main dwelling; it affects your other structures too.
If you live in a high-risk zone, you might find fewer options for coverage, or that your policy comes with higher deductibles for wildfire claims. The California FAIR Plan, often a last resort for homeowners in these areas, *does* offer other structures coverage. However, its limits might be lower than a standard policy, and it often comes with its own set of rules. For instance, the FAIR Plan might offer a maximum Coverage B limit that still falls short if you have a very expensive detached structure.
Also, consider fire-resistant materials for your other structures. A metal shed or a fire-hardened fence might not only be safer but could potentially influence your insurability or premium in certain areas. It’s a small detail that can make a big difference.
Step 7: Working with an Expert to Get It Right
Insurance can feel like a maze, especially with California’s unique challenges. Trying to figure out the right coverage for every shed, fence, and ADU on your own can be daunting. That’s where an experienced insurance professional comes in. An independent agent, someone who works with multiple insurance companies, can help you compare options and find a policy that truly fits your property’s specific needs.
Karl Susman and his team at Los Angeles Home Protection (CA License #OB75129) specialize in helping California homeowners navigate these complexities. They understand the local market, the specific risks in different parts of the state, and how to tailor policies to ensure your entire property – not just your main house – is properly protected. They can walk you through the nuances of Actual Cash Value vs. Replacement Cost for your other structures, explain the implications of an ADU, and help you find the right balance of coverage and cost.
Ready to review your coverage and ensure your entire California property is protected? Get a personalized quote today.
Step 8: Regular Reviews and Adjustments
Your property isn’t static. You might add a new shed, upgrade your fencing, or even build a new outdoor kitchen. Construction costs change. Inflation affects rebuilding expenses. That’s why your insurance coverage shouldn’t be a “set it and forget it” kind of thing.
Make it a habit to review your policy annually. Did you build that new pergola? Tell your agent. Did you finally get around to replacing that old fence? Update your coverage. These small changes can add up, and if you don’t adjust your policy, you could find yourself underinsured when you need it most. A quick chat with your agent once a year can save you a lot of heartache – and money – down the road.
Don’t leave your detached garage, pool house, or fence vulnerable. Talk to Karl Susman and his team at Los Angeles Home Protection (CA License #OB75129) to tailor your policy. Start your quote process here.
Questions You Might Have About Other Structures Coverage
Does my fence count as an “other structure”?
Yes, usually. Fences are typically considered “other structures” because they’re not physically attached to your main dwelling. However, some policies might have specific limits on fence coverage or different deductibles, especially if the fence is damaged by specific perils like falling trees or vehicle impact. It’s always a good idea to confirm with your agent how your particular fence is covered.
What if I have an ADU? Is it covered under Coverage B?
An Accessory Dwelling Unit (ADU) is often considered an “other structure” and can fall under Coverage B. However, because ADUs can be quite valuable – sometimes costing as much as a small home to build – the standard 10% of your dwelling coverage (Coverage A) is almost never enough. You’ll likely need to significantly increase your Coverage B limit or purchase a specific endorsement or even a separate policy to adequately protect your ADU. This is a common area of underinsurance for California homeowners.
Will my premium go up if I increase Coverage B?
Generally, yes. Increasing your coverage limits for any part of your home insurance policy, including Coverage B for other structures, will typically result in a higher premium. However, the increase is usually proportional to the added coverage and often quite modest compared to the potential out-of-pocket costs if you’re underinsured after a major loss. It’s a trade-off that often makes financial sense.
What’s the difference between actual cash value and replacement cost for these structures?
This is a big distinction. Replacement Cost Value (RCV) means your insurer would pay to rebuild or repair your other structure using new materials, without deducting for depreciation (wear and tear). So, if your 10-year-old shed burns down, RCV would pay to build you a brand new shed. Actual Cash Value (ACV), on the other hand, pays to rebuild or repair *minus* depreciation. If that same 10-year-old shed was worth $5,000 new but had depreciated to $2,000, ACV would only pay $2,000. Most policies for dwellings and other structures aim for RCV, but it’s always worth confirming, especially for older or less significant detached items.
Are things like satellite dishes or solar panels considered “other structures”?
It depends. If a satellite dish or solar panel array is *attached* to your main dwelling, it’s typically covered under Coverage A (dwelling coverage). If it’s a *detached* solar array on its own stand, it would likely fall under Coverage B (other structures). However, given the specific nature and value of these items, some policies might require a separate endorsement for full protection, regardless of where they’re located. Always check with your agent to ensure these specific installations are properly covered.
This article is for informational purposes only and does not constitute financial advice.