AB 818 creates a short, structured path to get people sheltered and rebuilding after a declared local emergency. It requires utility providers to send a written “next steps” notice within 30 days of a connection request for projects to repair or rebuild affected residences and forces local agencies to approve or deny complete applications for certain temporary residential structures within 10 business days once a parcel is deemed safe for development.
The bill also imposes public-information duties on cities and counties: a checklist describing when a home is considered substandard, a notice about the option to obtain a confidential third-party code inspection, and, for jurisdictions with more than 30,000 residents, a permitting-performance dashboard. Local agencies must have the required online materials in place by March 31, 2028, and refresh them every four years.
Those implementing agencies, and utility providers, will face resource and coordination challenges even as displaced homeowners and manufacturers of modular units gain faster routes to occupancy.
At a Glance
What It Does
Requires utility providers to give a written notice explaining next steps within 30 days after receiving a connection request tied to rebuilding or repair of an affected residential property, unless connection is infeasible. Requires local agencies to approve or deny complete applications for state- or federally approved modular homes, prefabricated homes, or qualifying detached ADUs within 10 business days after the parcel is declared safe.
Who It Affects
Displaced homeowners and occupants of residential properties damaged in a declared local emergency, modular and prefab manufacturers and installers, utility providers that handle service connections subject to Chapter 5 (starting at Section 66000), and city and county permitting offices—especially jurisdictions with populations over 30,000 that must publish dashboards.
Why It Matters
It shortens key administrative steps that commonly delay rehousing after disasters, creating enforceable timelines and public transparency obligations. Those changes shift operational burdens onto local permitting staffs and utilities and create new market opportunities for prefab housing and third-party inspectors.
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What This Bill Actually Does
AB 818 starts by defining the people and properties it covers: "affected property" means a residential parcel either destroyed or rendered a substandard building by a disaster that led to a declared local emergency. The bill borrows statutory definitions for "disaster," "local emergency," and "substandard building," and clarifies that "local agency" in this context means a city, county, or consolidated city and county.
On utilities, the bill requires an entity that provides a utility service connection and that falls under Chapter 5 (commencing with Section 66000) to send a written notice within 30 days after receiving a connection request for a rebuild/repair project. That notice must describe the next steps in the approval process for the connection; the only explicit exception is where connection is infeasible because of the disaster itself.
The obligation is procedural—prompt communication rather than an absolute guarantee of expedited physical hookup.For temporary residential options, AB 818 forces faster permit decisions. After a parcel has been deemed safe for development by the state, a local agency, or both, the agency must approve or deny a complete application within 10 business days for a building permit (or equivalent) for three categories of structures intended for temporary occupancy while rebuilding continues: state- or federally approved modular homes, state- or federally approved prefabricated homes, and detached structures that would meet ADU requirements.
The bill ties the timeframe to a "complete" application submission, which places the onus on applicants to provide everything the agency needs to act.Finally, the bill imposes public-information duties. Local agencies must post online a checklist of conditions that would render a residential property substandard, a notice informing property owners they may obtain a confidential third-party code inspection from a licensed contractor before applying for permits, and—for jurisdictions over 30,000 residents—a dashboard tracking permitting timelines and agency performance.
Agencies must publish these resources by March 31, 2028, and refresh them every four years, creating recurring compliance work and a public record of recovery performance.
The Five Things You Need to Know
The bill defines an “affected property” as a residential parcel destroyed or rendered substandard by a disaster that resulted in a declared local emergency.
A utility provider subject to Chapter 5 must send a written notice describing next steps for a connection request within 30 days of receiving that request, unless connection is infeasible because of the disaster.
After a parcel is deemed safe for development, a local agency must approve or deny a complete application within 10 business days for building permits (or equivalent) for state- or federally approved modular homes, prefabricated homes, or qualifying detached ADUs intended for temporary occupancy.
Local agencies must place online a substandard-building checklist and a notice about the option to obtain a confidential third-party code inspection; jurisdictions with populations over 30,000 must also publish a permitting-performance dashboard.
The website and related public-information requirements must be implemented by March 31, 2028, and the information must be updated every four years thereafter.
Section-by-Section Breakdown
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Definitions and scope
This subsection sets the baseline vocabulary the rest of the bill uses: what counts as an affected property, and that "disaster," "local emergency," and "substandard building" track existing statutory definitions. It also overrides the general term "local agency" in Section 65930 to mean cities and counties specifically for this section, and it identifies which entities count as utility providers by reference to Chapter 5 (beginning at Section 66000). The practical effect is to limit the bill to residential recovery work in declared local emergencies and to ensure the downstream duties attach to municipal permitting systems and covered utilities.
Utility-provider notice requirement
When a utility provider receives a connection request tied to rebuilding or repairing an affected property, the provider must send a written notice within 30 days describing the next steps in the connection-approval process. The provision is procedural: it compels timely communication to applicants so they know what remains to secure a hookup. The statute includes an exception when a connection is infeasible due to the disaster, but it does not define "infeasible," leaving room for dispute about when the clock stops.
10-business-day review for temporary residential units
This is the bill’s operational fast lane. Once a parcel is declared safe for development by the state, a local agency, or both, the agency must act within 10 business days on a complete application for a building permit or equivalent for three types of temporary housing: state- or federally approved modular homes, state- or federally approved prefabricated homes, and detached structures that would qualify as accessory dwelling units for the property. The timeline is triggered only after a safety declaration and only for applications that an agency deems complete, so both the safety determination and application completeness are gating conditions that will determine how quickly the rule takes effect in practice.
Public information duties and optional third‑party inspections
Local agencies must use public-facing resources to explain the law and help owners navigate rebuilding. They must publish a checklist of conditions that render a residence substandard and a notice telling owners they may obtain a confidential third‑party code inspection from a licensed contractor before applying for a permit. For jurisdictions over 30,000 people, the agency must also provide an online dashboard that tracks permitting timelines and agency performance—creating transparency and a potential accountability tool.
Compliance schedule and update cycle
Agencies get a fixed compliance deadline: the required online materials must be live by March 31, 2028. After that, they must update the published information every four years. The phased schedule gives agencies time to build dashboards and checklists but also imposes a recurring obligation to keep public-facing recovery guidance current.
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Explore Housing in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Residents displaced by disasters — the bill narrows administrative bottlenecks that delay rehousing by imposing timelines on utilities and permitting agencies, increasing the chance of faster interim occupancy.
- Manufacturers and installers of modular and prefabricated homes — they gain clearer, time-bound pathways for getting temporary units authorized after emergencies, shortening sales and deployment cycles.
- Licensed contractors offering third‑party code inspections — the statutory encouragement of confidential third‑party inspections creates new demand for rapid condition assessments and pre‑permit reports.
- Emergency planners and nonprofit recovery organizations — the dashboard requirement in larger jurisdictions produces data they can use to coordinate placement, funding, and logistics during recovery.
- Property owners seeking clarity about repair options — the mandated online checklist and notices reduce uncertainty about whether a damaged unit is "substandard" and what preparatory steps are available.
Who Bears the Cost
- Local permitting offices — they must meet a 10-business-day decision clock for certain permits, publish new online materials by a statutory deadline, and refresh them every four years, all of which require staff time and potentially new IT systems.
- Utility providers subject to Chapter 5 — they must respond in writing within 30 days to connection requests and may face disputes over what constitutes infeasibility, requiring legal and operational resources to comply.
- Smaller municipalities without existing dashboards — jurisdictions above and below the 30,000 threshold will still need to implement checklists and notices, but those over 30,000 face higher technology and reporting costs to build performance dashboards.
- Permit applicants and builders — the statute ties agency timelines to "complete" applications, shifting pressure to applicants to submit perfect packages quickly; incomplete submittals will still delay decisions but may increase up-front costs for consultants and designers.
- Public agencies with limited budgets — recurring four-year update cycles and potential public inquiries driven by dashboard transparency create ongoing administrative burdens that may not be funded by the bill.
Key Issues
The Core Tension
The central dilemma is speed versus safeguards: the bill prioritizes rapid rehousing and clearer timelines for applicants, but doing so risks approving temporary housing without resolving infrastructure capacity, consistent safety determinations, or the administrative resources needed to implement and police the new deadlines and online transparency requirements.
AB 818 pushes for speed and transparency, but it leaves several practical questions unresolved. The 10-business-day deadline applies only to "complete" applications, yet the bill does not define completeness or require agencies to provide a standardized completeness checklist.
That gap gives agencies discretion to refuse to process filings as incomplete, which could blunt the statute’s intended acceleration unless jurisdictions adopt uniform completeness criteria. Similarly, the utility exception for when a connection is "infeasible due to the disaster" is not defined; utilities and applicants may disagree over feasibility, creating dispute and potential delay despite the 30-day communication requirement.
The bill also trades off speed for administrative burden. Local agencies must stand up public portals, produce and maintain checklists, and—if they exceed 30,000 residents—build dashboards that track permitting timelines.
Those IT and staffing costs could be substantial, and the law includes no funding mechanism. Faster approvals for temporary structures may also stress local infrastructure: approving a modular unit quickly does not guarantee immediate utility capacity, road access, or inspection personnel to ensure safe occupancy.
Finally, while the bill endorses confidential third-party inspections, it does not address how those reports interact with public records, agency reliance, or potential liability if private inspections miss hazards.
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