Does unpermitted work affect home insurance?

Updated October 6, 2026 · 3 min read

Short answer

It can. A policy is not void because work lacked a permit, but an insurer can deny or reduce a claim when the damage traces back to faulty work, and the cost of bringing work up to code after a loss is paid only up to the policy's ordinance or law coverage, if it has any. What applies depends on your policy's wording.

Where it causes trouble

  • A claim caused by the work. After a fire, the insurer investigates the cause. Policies commonly exclude the cost of faulty workmanship itself. Whether the damage that resulted is covered depends on the wording.
  • Rebuilding. After a covered loss, the city may require the repair to meet current code and to be permitted. Ordinance or law coverage is the part of a policy that pays for loss caused by enforcement of laws regulating construction and repair, and its limit can be small.
  • A house that does not match the policy. If the policy describes three bedrooms and an unfinished basement, an unpermitted fourth bedroom downstairs may not be reflected in the insured value.
  • The application. Wrong answers about the property on an insurance application can cause problems at claim time.

What a buyer should do

  1. 1Check the permit history before closing, so you know what you are insuring.
  2. 2Ask the insurer or agent, in writing, how the policy treats work done without a permit.
  3. 3Ask what the ordinance or law limit is and what it costs to raise it.
  4. 4If you buy the house anyway, plan to legalize the work.

Common questions

Will the insurer find out?

Usually only when someone looks: an underwriting inspection when the policy starts, or an adjuster's visit after a claim.

Does legalizing the work fix the problem?

It removes the argument. A permit with a passed final inspection is a record that the work was checked against code.

Should I tell my insurer about unpermitted work?

Ask your agent. What matters most is that the policy describes the house accurately, including its size, rooms and finished areas, because the price and limits are set on that description.

Read next

Sources

This guide is general information, not legal advice. Permit rules vary by city and state. Confirm anything that affects a purchase with the local building department or a real estate attorney.