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A newly built home is cheaper to insure than an older one with the same coverage, and the gap is not small. NerdWallet’s rate comparison found an average of $1,425 a year for a home built in 2025 against $2,490 a year for a comparable home built in 1984, at the same coverage limits. New wiring, new plumbing, a new roof, and modern building codes all cut the claim risks insurers worry about most.
Why insurers discount new construction
Water damage and fire drive a large share of homeowners claims. A new home starts with pipes, valves, wiring, and a roof at year zero, built to current codes that require things like arc-fault protection and better fire separation. Older homes carry decades of wear, plus systems that may predate modern standards. Insurers price that difference directly. Many carriers also offer an explicit new home discount for houses under a certain age, and the discount fades gradually as the home gets older rather than vanishing at one birthday.
What new build buyers still get wrong
The first mistake is insuring to the purchase price of a new build, which includes the lot and often the builder’s premium for the neighborhood. Your dwelling limit should follow the rebuild estimate, as our replacement cost vs market value guide explains. The second mistake is forgetting the upgrades. Buyers who added $40,000 of finishes during construction should make sure the insurer’s replacement cost estimate reflects them, or the policy rebuilds a base-model version of the house.
The third mistake is timing. Coverage should start at closing, and buyers building from scratch need to talk to an insurer about the construction period itself, since a standard homeowners policy is written for a finished, occupied home.
Keeping the new home advantage
The discount years are the cheapest coverage you will ever buy on that house, so lock in good habits early. Photograph every room and system at move-in for your records. Tell your insurer about later additions, a finished basement, a deck, a pool, since each changes the rebuild figure and sometimes the risk class. A pool, for example, changes your premium in ways our 2026 cost guide touches on alongside other common surcharges. Review the dwelling limit every two or three years as construction costs move, because a limit set at closing drifts out of date quietly.
When the home reaches the age where the new home discount has fully faded, shop the policy again. Carriers weight home age differently, and the insurer that loved your house at year one may not be the cheapest home for it at year twelve.
