The #1 mistake is insuring your home's price. You need to insure its rebuild cost — land doesn't burn down. Here's the right number.
Rebuild cost runs ~$130–250/sq ft depending on region and finishes. Premium rate: ~$6–8 per $1,000 in calm states, $12+ in hurricane/wildfire country — a national average policy on a $300k home runs roughly $2,500–2,900/yr in 2026.
Also make sure the policy includes at least $300,000 personal liability — it's cheap to add and it's what protects your savings in a lawsuit.
Market price includes land and location hype; rebuild cost is labor and materials to put the same house back. In pricey metros, rebuild is often less than price — insuring full market value means overpaying every year. In rural areas it can be more — insuring the purchase price leaves you short after a total loss.
Two policies can insure the same amount and pay wildly differently. "Replacement cost" pays what it takes to rebuild or rebuy new; "actual cash value" pays the depreciated worth — your 10-year-old roof is worth very little on paper. The premium difference is small. Choose replacement cost; this is the single most valuable checkbox in the policy.
Construction costs and disaster payouts surged, and reinsurance (insurance for insurers) got expensive. If your renewal spiked, re-shop it — loyalty is not rewarded in this market, and identical coverage often varies 30%+ between carriers.
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The most important number in a homeowners policy is dwelling coverage — and it's based on what it would cost to rebuild your home, not what you paid for it or what it would sell for. Because the sale price includes land (which doesn't burn down), rebuild cost is often lower than market value in expensive areas and higher in cheap ones. This calculator estimates dwelling coverage from your home's size and rebuild cost per square foot, then ballparks a premium and the related coverages that ride on top.
A 2,000-square-foot home in an area where rebuilding runs about $200 per square foot needs roughly $400,000 in dwelling coverage — even if it would sell for $550,000, because a big chunk of that price is the land. Policies then layer on personal property (often 50–70% of dwelling), liability, and loss-of-use coverage. Insuring to the sale price instead of rebuild cost is how people end up over- or under-insured, which is exactly what this tool helps you avoid.
Why not insure for the price I paid?
Because you're insuring the structure, not the land. Rebuild cost is the right basis; market price mixes in land and location.
What raises or lowers my premium?
Your deductible, location and risk (fire, wind, flood), home age, roof condition, and claims history. Flood is usually a separate policy, not included in standard coverage.
Is this connected to my mortgage?
Yes — lenders require homeowners insurance and usually collect it monthly through escrow, as shown in the mortgage calculator.