An earthquake does not automatically mean every building in San Francisco needs a new facade inspection. However, when facade elements covered by Chapter 5F show significant damage or failure, the building may require an inspection outside its normal inspection schedule.
Under San Francisco Existing Building Code Section 503F.3, the owner must inspect damaged or failed facade elements and related building elements within 60 days of discovering significant damage, unless the condition is unsafe. Unsafe conditions require immediate action instead of waiting for the 60-day inspection period.
For property owners and managers, the important question after an earthquake is not simply, “Did the building shake?” It is whether the event caused facade damage that may create a safety concern and whether that condition requires an off-cycle inspection or immediate mitigation.
Does Every Earthquake Require a Facade Inspection in San Francisco?
No. An earthquake by itself does not automatically trigger a Chapter 5F facade inspection.
The off-cycle inspection requirement applies when facade elements required under Chapter 5F show significant damage or failure. The rule recognizes damage identified after an earthquake or another event, as well as damage that develops through the normal passage of time.
This means a building owner should focus on the facade's condition after the event, not simply on the earthquake's occurrence.
If there is evidence of significant facade damage, the building should be evaluated by the appropriate qualified professional instead of waiting until the next regularly scheduled facade inspection.
What Counts as Significant Facade Damage After an Earthquake?
San Francisco’s AB-110 explains that significant damage can include facade items that have fallen from the building or elements that have cracked or become dislodged and could become falling hazards. A qualified professional determines whether the observed condition constitutes significant damage.
This distinction matters because not every cosmetic change automatically meets the threshold for significant damage.
The professional evaluation should consider whether the observed condition affects facade safety and whether the damaged element or related building elements require closer inspection.
How Soon Must Significant Facade Damage Be Inspected?
If a facade appears to have significant damage after an earthquake, windstorm, or other cause, AB-110 requires inspection within 60 days of discovering the damage.
The timing is important:
| Situation | Required Response |
|---|---|
| No identified significant damage | The earthquake alone does not automatically create the 60-day inspection requirement. |
| Significant damage or failure | Inspection of the damaged or failed elements and related building elements within 60 days. |
| Unsafe condition | Notify immediately and take protective action; do not wait for the 60-day period. |
The 60 days is tied to discovering significant damage, not automatically to the date the earthquake occurred.
What Is the Difference Between Significant Damage and an Unsafe Condition?
This is one of the most important distinctions for building owners.
Significant damage can trigger an inspection that must be completed within the required 60-day period.
An unsafe condition requires a much faster response. If an unsafe condition exists, the normal 60-day approach doesn't apply in the same way; the applicable unsafe-building provisions and AB-110 emergency procedures take precedence.
In simple terms: significant damage requires an inspection within a defined period. An unsafe condition requires immediate attention.
Owners should not try to make that determination solely from a visual check at ground level when facade elements appear damaged, loose, displaced, or otherwise concerning.
What Happens If an Unsafe Facade Condition Is Found?
If a qualified professional identifies an unsafe condition during the facade inspection or reporting process, AB-110 requires immediate notification to the property owner and the Department of Building Inspection.
If an inspector or qualified professional observes what appears to be an unsafe condition during a post-earthquake evaluation, the Director of DBI must also be notified so the Director can evaluate the condition.
AB-110 also requires the property owner to act as soon as reasonably possible to protect the public and property. Depending on the condition, this may involve temporary protective measures, stabilization, or coordination with City agencies.
This emergency response is separate from the routine facade inspection schedule.
Is There a 72-Hour Requirement for Unsafe Conditions?
Yes.
AB-110 states that after you notify DBI of an unsafe condition, you must provide a mitigation plan and implementation schedule within 72 hours. The plan must be prepared by a qualified professional architect or engineer and address how the imminent hazard will be temporarily or permanently mitigated.
The mitigation plan can address measures such as protective barriers, stabilization, repair, or other appropriate actions.
AB-110 states that the mitigation work must be completed within a timeframe acceptable to the DBI Director and generally must not exceed five days, although extensions may be considered on a case-by-case basis.
This requirement applies to unsafe conditions, so it should not be confused with the separate 60-day inspection rule for significant damage.
What Areas Need to Be Inspected After Earthquake Damage?
Section 503F.3 does not mean the entire facade must automatically undergo a new comprehensive inspection every time significant earthquake damage is found.
The code requires inspection of the areas containing the damaged or failed facade elements and related building elements.
The exact inspection scope depends on the observed damage and professional evaluation.
For example, damage identified at one exterior element may require examining related elements or surrounding conditions to determine whether the issue is isolated or part of a larger facade condition.
The qualified professional should determine the appropriate inspection scope based on the building and the damage observed.
Can DBI Require an Inspection Before the Building’s Normal Facade Inspection Date?
Yes.
An earthquake-related damage inspection is an off-cycle inspection. Section 503F.3 applies when significant damage or failure is identified, even if the building’s next regular Chapter 5F inspection is not yet due.
That means a property owner should not wait for the next scheduled Chapter 5F inspection if qualifying damage is discovered beforehand.
For a broader explanation of the regular inspection program, see our Chapter 5F Facade Inspection Guide.
Does a Previous Facade Inspection or Waiver Remove the Earthquake Inspection Requirement?
No.
An earlier inspection, accepted report, or initial-inspection waiver does not prevent DBI from requiring an inspection when significant facade damage or failure is later identified.
The damage-triggered requirement operates separately from the normal inspection schedule. Even a recently inspected building should not ignore new facade damage caused by an earthquake or another event.
Does the Rule Apply Only to Earthquake Damage?
No. Earthquakes are one important trigger, but AB-110 is broader.
Significant facade damage may develop over time or after an earthquake, windstorm, or other cause. When that damage meets the significant-damage threshold, the same 60-day inspection requirement can apply.
This is why building owners should treat the rule as a damage-based requirement, not simply an earthquake rule.
The event matters because it may cause the damage. The facade's condition determines the next step.
What Should Building Owners Do After an Earthquake?
After an earthquake, owners and property managers should watch for any reported or observed changes in facade conditions and avoid assuming the next scheduled inspection date is the only deadline that matters.
If facade damage appears significant, a qualified professional should evaluate whether Section 503F.3 applies and determine the appropriate inspection scope.
If a condition appears unsafe, treat it as an immediate safety matter and handle it through the applicable DBI notification and mitigation process. AB-110 distinguishes these conditions from the standard 60-day significant-damage inspection requirement.
The goal is to identify the correct response based on the condition actually present.
What Happens After an Unsafe Condition Is Mitigated?
Mitigating an immediate hazard does not automatically complete the Chapter 5F process.
AB-110 states that the qualified professional must notify DBI when the qualified professional has mitigated unsafe conditions. It also states that even when the qualified professional reports and mitigates the unsafe condition on time, they must still submit a completed facade inspection report within the timeframe required by Section 503F.
For a closer look at what goes into the final documentation, see our Facade Inspection Report Guide.
What About Historic Buildings After an Earthquake?
Historic properties may require additional coordination when emergency work could affect historic building fabric.
AB-110 states that if the property is a historic resource, San Francisco Planning Preservation staff should review and advise before approving an Emergency Order or other emergency action that may affect historic fabric. It also requires preserving certain historic elements removed during stabilization, where applicable.
This makes early professional coordination especially important when earthquake damage affects a recognized historic facade.
Conclusion:
A facade inspection after an earthquake in San Francisco is driven by the facade's condition, not simply by the fact that an earthquake occurred.
When Chapter 5F facade elements exhibit significant damage or failure, the damaged and related building elements must generally be inspected within 60 days of discovery. If the condition is unsafe, notify immediately, implement public-protection measures, and follow the AB-110 mitigation process instead.
The key is recognizing the difference between routine scheduled inspections, significant-damage inspections, and unsafe-condition response.
Property owners who notice or receive reports of post-earthquake facade damage should have the condition evaluated promptly so we can identify the appropriate Chapter 5F requirements.
Need a Facade Inspection After Building Damage?
Great Escape Service & Inspections provides professional building facade inspection services in San Francisco.
If your property has experienced facade damage after an earthquake, windstorm, or other event, our team can coordinate the inspection process and evaluate hard-to-reach exterior areas under the applicable facade inspection framework.
Frequently Asked Questions
Does the 60 days start on the Day of the Earthquake?
Not necessarily. The 60-day inspection period is tied to discovering significant facade damage, not automatically to the earthquake date.
Can I Wait Until My Next Scheduled Facade Inspection?
No, not if significant damage or failure covered by Section 503F.3 has been identified. The damage-triggered inspection requirement can apply outside the normal inspection schedule.
Who Determines Whether Facade Damage Is Significant?
AB-110 states that a qualified professional determines whether damage is significant.
Does the 60-Day Rule Apply to an Unsafe Condition?
No. An unsafe condition requires immediate action and notification under the applicable DBI procedures. The 60-day inspection period applies to significant damage or failure that hasn't been treated as an unsafe condition.
Can Wind Damage Trigger the Same Type of Inspection?
Yes. Significant facade damage can result from an earthquake, windstorm, or other cause. The facade's condition determines whether the damage-triggered inspection requirement applies.
