After a hurricane destroys or substantially damages a coastal property, the policyholder does not simply rebuild what was there before. Building officials enforce current codes — and those codes, particularly in Florida's and Alabama's hurricane-prone coastal zones, are materially more demanding than the standards in effect when the original structure was built. The additional cost of bringing a damaged structure into compliance with current codes is the subject of Ordinance or Law (O&L) coverage, one of the most consistently underpaid and underutilized coverages in residential and commercial property insurance.
I. The Structure of O&L Coverage: Coverages A, B, and C
Standard O&L coverage is typically organized into three components — Coverage A, Coverage B, and Coverage C — each addressing a distinct cost consequence of post-loss code enforcement.
Coverage A: Loss to the Undamaged Portion of the Building
When an insured structure sustains a covered loss and a building ordinance or law requires demolition of the undamaged portion of the structure — for example, because the law treats partial damage above a threshold as requiring the entire building to be replaced to current code — Coverage A provides compensation for the value of the portion lost without physical damage.
In some standard homeowner's policies, Coverage A is expressed as a percentage of the dwelling limit (e.g., 10%) rather than a separately purchased endorsement limit. This embedded Coverage A is frequently insufficient for significant losses. Practitioners should verify whether the client's O&L Coverage A is adequate relative to the value of what would need to be demolished.
Coverage B: Demolition Costs
When ordinance requires demolition of the undamaged portion of a building, Coverage B pays the cost of that demolition and debris removal. Coverage B is typically a separately purchased endorsement limit and is distinct from Coverage A (which compensates for the value of what is lost) in that Coverage B funds the actual act of demolition.
The practical relationship: Coverage A compensates the insured for the loss of value in the undamaged portion; Coverage B funds the contractor to tear it down. Both are necessary when ordinance requires full demolition after partial loss.
Coverage C: Increased Cost of Construction
Coverage C — the most commonly litigated component in coastal claims — pays for the increased cost of rebuilding a damaged portion to current code standards. When a hurricane damages a 1985-era structure and the 2024 building code requires, as it does in coastal Florida and Alabama, impact-resistant windows, stronger roof-to-wall connections, updated electrical panels, or energy code compliance, the difference between the pre-loss construction standard and the current code standard is the "increased cost of construction" that Coverage C is designed to fund.
Coverage C is almost universally subject to a sublimit — whether expressed as a dollar amount or as a percentage of the dwelling limit. Many residential policies include only 10% of the dwelling limit, which may be wholly inadequate for an older coastal structure requiring extensive code upgrades.
II. The Trigger: Covered Loss Plus Code Enforcement
O&L coverage does not activate simply because a building exists and codes have changed. Coverage is triggered only when:
- There is direct physical damage to covered property from a covered cause of loss (the hurricane must actually damage the structure); and
- An ordinance or law in force at the time of loss requires certain demolition, demolition of undamaged portions, or increased construction standards in connection with repairing or rebuilding the damaged property.
The "in force at the time of loss" language is critical. A building official's post-loss decision to require code upgrades that were not actually required by an effective ordinance does not trigger O&L coverage. Practitioners must identify the specific code provisions that mandate the upgraded construction and confirm their effective date predates the loss.
The converse question — whether post-loss code changes (enacted after the loss but before reconstruction begins) are covered — is less settled. Most policies trigger coverage based on ordinances in force at the time of loss, not at the time of reconstruction. Policyholders who face code changes enacted after the loss may need to argue for coverage under the policy's "increased cost of construction" language if the policy does not expressly limit coverage to pre-loss ordinances.
III. Florida Building Code Interactions
The Florida Building Code (FBC) is a statewide, mandatory code that establishes minimum construction standards, including stringent wind-resistance requirements for coastal structures. Several FBC provisions are particularly relevant to O&L coverage disputes:
A. The 25% Roof Rule (FBC § 706.1.1)
Florida Building Code § 706.1.1 prohibits repair, replacement, or recovery of more than 25% of the total roof area in any 12-month period unless the entire roofing system or roof section is replaced to conform to FBC requirements. When hurricane damage exceeds the 25% threshold, building officials typically require full roof replacement to current code, which may mandate:
- Specific sheathing nail patterns and spacing;
- Enhanced underlayment products;
- Impact-resistant or improved wind-uplift-rated roofing materials;
- Secondary water barriers in high-velocity hurricane zones.
The cost difference between repairing the damaged portion and replacing the entire roof to current code is squarely within Coverage C's scope.
B. Windborne Debris Regions and Impact Windows (FBC § R301.2.1.2)
Properties within one mile of the coastal mean high water line where design wind speeds exceed 130 mph are located in designated "windborne debris regions." FBC § R301.2.1.2 requires that glazed openings (windows and sliding glass doors) in those regions be protected with impact-resistant glazing or panel systems. When a hurricane damages windows in a windborne debris region, building officials may require replacement with FBC-compliant impact-resistant units — not simple like-kind-and-quality replacement. The additional cost of impact-resistant windows over standard windows is a Coverage C claim.
C. Electrical and Structural Upgrades
FBC and local amendments also require that substantial reconstruction projects bring electrical, plumbing, and structural systems into compliance with current standards. Post-hurricane reconstruction on older homes in coastal Florida routinely triggers these requirements. Practitioners should obtain a letter from the applicable building official (or a licensed building code consultant) confirming the specific code provisions that mandate each upgraded element, as this documentation is necessary to support the Coverage C claim.
IV. Alabama Building Code Interactions
Alabama's building code framework is more decentralized than Florida's. The state has adopted the Alabama Residential Energy and Building Code (AREBC) as a statewide standard, but municipal and county adoption and enforcement varies. In coastal Alabama — Mobile and Baldwin Counties — local jurisdictions may have adopted higher wind-resistance standards, particularly in communities that experienced significant hurricane damage (Ivan, Katrina, Sally).
The practical implication for O&L claims in Alabama is that practitioners must investigate:
- The specific local code in effect at the time of the loss for the property's jurisdiction;
- Whether the jurisdiction's building department has issued a written determination requiring code compliance as part of the repair/rebuild;
- Whether the code applied at the time of the permit pull (which may be later than the loss date) is the code "in force at the time of loss."
Alabama does not have FBC's explicit 25% roof rule as a statewide provision, though local ordinances in coastal municipalities may impose equivalent or similar requirements. Practitioners should obtain a building department letter confirming the applicable standards.
V. Common Scope Disputes
A. Whether the Damaged Portion Required Code Compliance
Insurers frequently argue that the code compliance work was "elective" or was required only because the insured chose a reconstruction scope that exceeded the minimum required repairs. The test is whether the applicable code — as enforced by the authority having jurisdiction (AHJ) — actually mandated the upgraded construction in connection with repairing the covered loss. Where the AHJ required it, Coverage C applies; where the insured voluntarily upgraded beyond what the AHJ required, Coverage C may not reach that elective work.
B. Calculation of "Increased Cost"
Coverage C pays the difference between the cost of repairing or rebuilding to the pre-loss construction standard and the cost of meeting current code. An estimate that presents the entire rebuilding cost as a Coverage C claim will be challenged; the estimate must isolate the code-compliance increment. Practitioners should work with contractors who can present a "split estimate" — what the repair would cost to the pre-loss standard, and what the code-mandated upgrades add on top.
C. Time Limits on Coverage C
Many O&L endorsements contain a time limit — often one to two years — within which reconstruction must be completed for Coverage C to apply. Pandemic-era supply chain disruptions, permitting delays, and contractor shortages have rendered these time limits contentious. Some policies permit extension on request; others are silent. Practitioners should review the endorsement's timing provisions carefully and communicate with the carrier before the period expires.
D. Undamaged Portions and Coverage A/B Applicability
In Florida and Alabama, local ordinances sometimes require the demolition of undamaged portions of a structure when the damaged portion exceeds a statutory threshold (often 50% of the structure's value) — the "50% rule" applicable in some flood-prone or hazard zone areas. Where a local ordinance mandates demolition of the undamaged remainder, Coverage A and B are triggered. Practitioners must verify whether the applicable flood-zone ordinance or local building regulation triggers this requirement for the specific property.
VI. Practice Notes
- Demand the O&L endorsement pages immediately: Coverage A, B, and C limits are set in the endorsement; the declarations page may show only a single "Ordinance or Law" line without identifying the component limits. Obtain all endorsement pages at intake.
- Obtain a building official determination letter: Before submitting the Coverage C claim, have the contractor and/or a code consultant obtain a written determination from the AHJ confirming the specific code provisions that mandate each element of the upgrade. This documentation forecloses the insurer's "elective upgrade" argument.
- Argue for the maximum O&L limit separately from the dwelling limit: Coverage C limits are typically in addition to the base dwelling Coverage A limit — not a sublimit within it. Confirm this under your client's specific endorsement.
- Watch for the time-to-complete requirement: Calendar the endorsement's reconstruction deadline from the first notice of loss, and seek an extension from the carrier well before the period expires.
VII. Open Questions
- Whether FBC's 25% roof rule automatically triggers Coverage C without a specific building official order: Some carriers argue that Coverage C requires a formal written determination from the AHJ; others acknowledge that a standing code provision automatically triggers coverage when its threshold is crossed. Florida appellate guidance on this point remains limited.
- Interaction between flood-zone regulations and O&L coverage: FEMA elevation requirements under the National Flood Insurance Program may require substantial reconstruction to bring the structure into compliance with NFIP elevation standards, creating a three-way coverage interaction between O&L, flood coverage, and the homeowner's policy.
VIII. Closing
O&L coverage is frequently the difference between a policyholder who can fully restore a damaged coastal property and one who faces a funding gap of tens of thousands of dollars. The structure of Coverage A, B, and C is precise and consequential; each component is separately limited and separately triggered. Practitioners who master the code-enforcement trigger, document the AHJ's requirements, and present a split estimate that isolates the code-compliance increment will recover significantly more for clients than those who leave O&L coverage on the table.
Talk to Yates Anderson
If you are litigating a matter in this area — or weighing whether to — the working analysis above only goes so far. Request a case evaluation and a Yates Anderson attorney will respond within one business day.
Informational only. Not legal advice. No attorney-client relationship is created by reading this post. Consult a licensed attorney in your jurisdiction.