Does a New Adu Require a Separate Electrical Meter in Los Angeles?

Whether a new ADU requires a separate electrical meter in the Los Angeles area depends primarily on the type of unit you are building and the specific municipal guidelines of your community. As trusted local electricians serving the Foothills, we have found that requirements generally follow these standards:

  • Altadena (Unincorporated LA County): A separate meter is generally required for detached ADUs. Because these projects fall under LADBS jurisdiction, we always recommend consulting with them for specific exceptions based on your site plan.
  • Pasadena: Separate meters are typically required for detached units to maintain independent utility tracking.
  • La Cañada Flintridge: A separate meter is usually necessary for ADUs intended as rental units to simplify billing and occupancy standards.
  • Sierra Madre: A separate meter is required for separate occupancy according to LADWP and local guidelines.

In addition to metering, most ADU projects in these areas trigger a 200A panel upgrade if the existing service cannot support the additional electrical load of a new dwelling. Modern California standards, including Title 24 energy efficiency mandates, also require ADUs to be solar-ready and pre-wired for EV charger installation.

We recommend hiring a licensed electrician and obtaining necessary permits for all electrical work to ensure your project is safe and fully compliant with local codes. We offer free estimates to help you determine the exact infrastructure needs for your specific property.

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