How Much Should You Insure a House For?
Insure the house for what it would cost to rebuild it, not what you paid or what it's worth on the market.
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The number you need is a rebuilding cost estimate, not the sale price on the listing. Your insurer or agent runs this using the home's square footage, materials, roofline, and local labor and construction costs, and that figure becomes your dwelling coverage limit. Land value never enters it, which is why the rebuild number is often lower than the purchase price in expensive markets and higher in cheap ones. Your lender will want coverage at least equal to the loan amount, but check that the rebuild estimate itself is accurate rather than just matching the mortgage.
Two insurers, two rebuild numbers
Rebuild cost estimates vary by insurer, and so does the price for the same dwelling limit. Comparing quotes shows whether you're paying a fair rate for accurate coverage, not just the number closest to your loan amount.
What else makes up the policy besides the dwelling number
The dwelling limit is the base the rest of the policy is built on. Most insurers set other structures, things like a detached garage, shed or fence, at around 10% of your dwelling coverage automatically. Personal property, meaning your furniture, clothes and belongings, is usually set as a percentage of the dwelling limit too, often around 50 to 70%. If your dwelling number is accurate, these usually land in a reasonable place without you doing anything. If it's wrong, everything tied to it is wrong too.
Loss of use coverage pays for a hotel and extra living costs if the house becomes unlivable after a covered loss. Liability coverage pays if someone is hurt on your property or you're responsible for damage to someone else's. Neither of these is based on what the house would sell for, and neither should be left at whatever default the quote starts with. Look at each one on the declarations page and ask whether it fits your situation, not just the house.
Your deductible is what you pay out of pocket before coverage kicks in, and it's worth deciding on purpose rather than accepting the default. Some policies use a flat dollar deductible, others use a percentage of the dwelling limit for certain perils like wind or hail, often 1% to 2%. On a $350,000 dwelling limit, a 2% deductible means $7,000 out of pocket before the policy pays anything. That's a real number to know before you need it, not after.
Ask what your policy pays to rebuild if construction costs rise after a bad storm season and materials get more expensive. Some policies include a cushion above the dwelling limit for exactly that, often called extended or guaranteed replacement cost. Others pay out only up to the stated limit no matter what rebuilding actually costs that year. This matters more than it sounds like it should, since the gap between the two can be tens of thousands of dollars if you ever have to use it.
What about the binder your lender is asking for
The binder is a one-page proof of insurance that shows your lender the house will be covered the moment you close, before the full policy document even exists. It lists the dwelling limit, the effective date, and the lender as a mortgagee or loss payee, which just means the insurer agrees to notify the lender if the policy lapses or gets canceled. Closing cannot happen without it, so this is usually the first real deadline you hit in the insurance process.
Getting the binder issued is quick once you've settled on a dwelling limit and picked a policy, often same day. What takes longer is making sure the number on it is right, so it helps to start the rebuild cost estimate and comparison a week or two before closing, not the day before. If you bind coverage on a rushed or wrong number, you can still fix it after closing, but you're paying for a mistake in the meantime and may have already set your other structures and personal property limits off that same bad base.
Your lender will also want the dwelling limit high enough to at least cover the loan balance, since that's their collateral. That's a floor, not a target. If the accurate rebuild estimate comes in below the loan amount, which happens in markets where land value makes up a lot of the purchase price, insure to the rebuild number and let the lender's requirement sort itself out, rather than inflating coverage to match a mortgage figure that has nothing to do with construction costs.
Once the policy is active, the insurer sends a copy to your escrow account if your mortgage includes one, and your annual premium gets paid out of that account along with your property taxes. You won't write a separate check for it each year in that setup, but you'll see it on your escrow statement, and it's worth checking that the premium listed matches what you actually agreed to at closing.
Before you bind coverage
Check that the dwelling limit on your binder matches the rebuilding cost estimate, not the loan amount or the purchase price. That one number sets everything else in the policy.
