How much dwelling coverage do you need?
Your dwelling limit is the most important number on a homeowners policy, and it's often wrong. The right figure is what it would cost to rebuild your home today, which can be higher or lower than its price.
Published by Marcus L. Barber, former licensed Maryland property and casualty producer (2010–2012)Reviewed by Marcus L. Barber on Updated This guide is general education, not advice for your situation. We're an independent publisher, not an insurer or agent, and we may earn a commission from partner links. How we make money.
Key points
- Rebuild cost and market value aren't the same. Market value includes land; rebuild cost doesn't.
- Many policies cut payouts on partial losses if your limit is below 80% of the full replacement cost.
- Extended replacement cost adds a cushion, often 20% or more above your limit.
- Recheck the limit after renovations and as construction costs change.
Rebuild cost vs. market value
Your home's market value is what a buyer would pay for the house and the land under it. Your dwelling coverage only needs to pay to rebuild the structure. That gap can go either way:
- In expensive areas, land is a big share of the price, so rebuild cost can be well below market value.
- For older homes with custom details, or where construction labor is scarce, rebuild cost can be higher than market value.
Insuring to the sale price, or to your mortgage balance, can leave you over- or under-insured. Base the limit on rebuild cost.
Estimating rebuild cost
Insurers usually estimate rebuild cost for you with software, but the estimate is only as good as the details you give. Make sure they have:
- Finished square footage, number of stories, and foundation type (slab, crawlspace, basement).
- Exterior materials, roof type and age.
- Interior quality: flooring, countertops, cabinets, trim, built-ins.
- Number of kitchens and bathrooms, fireplaces, and any recent renovations.
- Attached structures like a garage or deck.
Ask the insurer for the estimate behind your limit and check it against your home. A local builder or appraiser can give you an independent figure for complex or high-end homes. Remember that rebuilding after a loss can also include debris removal and bringing the home up to current building codes, which may need extra coverage.
The 80% rule
Many policies include a coinsurance-style condition: if your dwelling limit is less than 80% of the home's full replacement cost, the insurer may pay less than the full cost of repairs on a partial loss, not just on a total loss.
Example: a home costs $400,000 to rebuild, so 80% is $320,000. If it's insured for $240,000 (60% of rebuild cost), a $40,000 roof claim might pay only part of the repair, roughly in proportion to how far short the limit is. The exact formula depends on your policy.
Building in a cushion
Construction costs can jump after a big storm, when many homes in an area are rebuilt at once. Two options help:
- Extended replacement cost pays a set percentage above your dwelling limit, often 20% or more, if rebuilding costs more than expected.
- Guaranteed replacement cost, offered by some insurers, pays the full cost to rebuild even above your limit, subject to conditions.
Also confirm your policy pays replacement cost, not actual cash value, on the dwelling.
Keeping it current
Many policies adjust the dwelling limit each year for inflation, but that won't capture a new kitchen, an addition or a finished basement. Tell your insurer about improvements, and review the limit at each renewal. For the rest of your policy, see the home insurance guide.
Partner phone line
Compare homeowners quotes by phone
Ready to price a policy? Talk with a licensed agent about a homeowners quote.
Every day, 9am to 9pm Eastern. Free to call.
Your call goes to a licensed insurance agency or insurer we partner with, not to Fast Insurance Group. You'll answer a few automated questions first. We may be paid for the call. How we make money
How this guide was made
We drafted this guide with help from AI writing tools, working from the sources listed below. Every fact was checked against those sources, and Marcus L. Barber read and reviewed the full page, including its title, description and FAQs, before it was published. AI tools don't decide what we publish; a person does. Our editorial standards.
Sources
- A Consumer's Guide to Home Insurance, National Association of Insurance Commissioners
- Insurance for your house and personal possessions, Insurance Information Institute
- What is covered by standard homeowners insurance?, Insurance Information Institute