Ordinance or law coverage: paying to rebuild to code

Ordinance or law coverage pays the extra cost of rebuilding to current building codes after a covered loss, an expense that ordinary replacement cost does not include. The ISO HO-3 (form HO 00 03 05 11) gives you an automatic allowance of up to 10% of the Coverage A limit for this purpose, on top of the dwelling limit. Homes with older wiring, flood or wildfire exposure and strict local building departments often need more, and the increase is an endorsement you must ask for before a loss.

Your insurer's form may differ from the ISO standard, so the numbers below are the ISO baseline. The declarations page and endorsements list your actual percentage.

Why code costs are not part of normal replacement cost

Replacement cost pays to rebuild with materials of like kind and quality. It does not pay for a better house. But when a fire or storm damages a house built in 1975, the permit office will not let you restore 1975 wiring or 1975 stair dimensions. Codes in force today apply to the repair, and sometimes to parts of the house that were not damaged. The difference between rebuilding the old way and rebuilding to code is the cost this coverage exists for.

The HO-3 excludes loss from any ordinance or law requiring or regulating construction, demolition, remodeling or repair, including debris removal that results. The additional coverage in the property section is the exception that gives some of it back. The NAIC's consumer guide describes the endorsement version as paying the extra expense to rebuild in compliance with building codes that did not exist when the home was built.

What the ISO form pays

Under Additional Coverage E.11, you may use up to 10% of the Coverage A limit for the increased costs you incur because a law or ordinance requires or regulates:

1. the construction, demolition, remodeling, renovation or repair of the part of a covered building damaged by a covered peril;
2. the demolition and reconstruction of the undamaged part, when the whole building must come down because of damage to another part; or
3. the remodeling, removal or replacement of the undamaged portion that is necessary to complete repair of the damaged part.

The form lets you apply part of the same money to increased debris-removal costs that arise from this work. It is additional insurance, meaning it does not reduce your Coverage A limit.

What it does not pay is just as specific:

• Loss in value. If new zoning means you can rebuild only a smaller house, the drop in the property's worth is not covered.
• Pollutant testing and cleanup. The form excludes costs to comply with a law requiring you to test for, monitor, clean up or remove pollutants. On an older house, a required asbestos or lead abatement may fall here, so ask before the demolition crew arrives.
• Costs you do not incur. The coverage reimburses expenses you actually pay. If you sell the damaged house as is, there are no code costs to reimburse.
• Uncovered causes. Code costs are paid only when a peril the policy insures causes the damage. Wear, rot, and flood are not triggers.

Some insurers' forms add other limits, such as carving out violations that existed before the loss. Read the endorsement text.

What kinds of requirements show up

Which codes apply depends on your city or county and the year of the build. Common examples after a fire or storm include:

• electrical upgrades, such as arc-fault or ground-fault protection, a new panel or larger service;
• smoke and carbon monoxide alarms installed to current standards;
• egress windows in bedrooms and stair, railing and guard dimensions;
• energy code items such as insulation levels and window ratings;
• wind-resistant roof attachment and opening protection in hurricane zones;
• elevation above the base flood elevation in a mapped floodplain; and
• ignition-resistant materials, defensible-space features or sprinklers where local wildfire or new-construction rules call for them.

The building department can tell you in writing what applies. Ask it early.

A worked example (hypothetical)

Say your dwelling limit is $400,000, so the HO-3's automatic ordinance or law allowance is $40,000. A kitchen fire damages part of a 1975 house. The permit office requires $22,000 of code work in the damaged portion, and also requires a $30,000 reworking of an undamaged section that ties into the new wiring and framing. The scenario is invented to show the arithmetic.

The ordinary repair of the burned kitchen is paid under Coverage A. The code work competes for the separate pool.

Buying more coverage

The usual route is an endorsement that raises the percentage. ISO's version is HO 04 77, Ordinance or Law Increased Amount of Coverage. Menus differ by insurer. Some state rules set a floor: Florida's statute (Fla. Stat. 627.7011) requires insurers to offer replacement cost coverage that includes code upgrade costs, which may be limited to 25% or 50% of the dwelling limit as the policyholder selects. If the policyholder does not make a written refusal, a dwelling policy is deemed to include law and ordinance coverage limited to 25% of the dwelling limit. See Florida.

The California Department of Insurance warns in its consumer guide that some policies do not have building code upgrade coverage at all, and that insurers may not pay for changes needed to bring the home up to current codes without it. It also flags rising post-wildfire costs from code upgrades and foundation rebuilding. See California and rebuilding after a wildfire: the insurance claim.

Extended replacement cost does not automatically include code costs, though some forms combine the two. Compare extended and guaranteed replacement cost coverage with your ordinance or law percentage, and make sure the two do not overlap or leave a hole.

Flood is different

The homeowners policy excludes flood, so its ordinance or law coverage does not respond to flood damage. The National Flood Insurance Program has its own feature, Increased Cost of Compliance, which per the October 2025 FEMA Flood Insurance Manual pays up to $30,000, subject to eligibility, toward elevation, floodproofing, relocation or demolition. It is paid in addition to building coverage, but the combined total cannot exceed the statutory building maximum.

Flood rules often turn on the "50% rule." Under FEMA's regulation at 44 CFR 59.1, substantial damage means damage of any origin where the cost of restoring the structure to its before-damaged condition would equal or exceed 50 percent of the structure's market value. Communities that take part in the NFIP generally must require substantially damaged buildings to meet floodplain standards, which can mean elevating the house.

When you file a claim

1. Call the building department before you call a contractor. Get the code requirements for your repair, in writing if possible.
2. Ask your adjuster in writing how the policy treats code costs, including which limit applies and whether demolition of undamaged portions qualifies.
3. Have contractors itemize code work separately from like-kind repairs, with references to the code sections.
4. Submit code costs as they are incurred, and as a supplement if they emerge after the first estimate. xactimate, contractor bids and estimate disputes explains why estimates change.
5. Keep permits, inspection reports and invoices. They are your proof that the work was required.

Who should look hard at this coverage

Owners of older homes, historic homes, houses in mapped floodplains or wildfire zones, and homes in jurisdictions with active building enforcement stand to gain the most. A newer house built to recent codes faces a smaller gap. A brief call with your agent, using the homeowners coverage gap checker, tells you whether your limit is plausible. Rising labor and material prices, covered in building materials, labor shortages and claim costs, push the bill up regardless.

Key takeaways

• Ordinary replacement cost does not pay for code upgrades. The ISO HO-3 adds up to 10% of Coverage A for them, as additional insurance.
• The coverage pays only for costs you incur after a covered peril, and it excludes loss in value and pollutant testing or cleanup.
• Older homes and areas with strict codes often need an increased amount endorsement. Florida requires insurers to offer code-upgrade coverage of 25% or 50% of the dwelling limit and deems 25% included unless the policyholder refuses in writing.
• Homeowners policies exclude flood, so flood owners rely on the NFIP's Increased Cost of Compliance, which pays up to $30,000 subject to eligibility.
• Ask the building department what applies, and have contractors price code items separately.