Newly Constructed ADU / Secondary Units: Brand-New ADU Structures
Key Points for Newly Constructed ADUs:
- Exception to PV/Solar Requirements [New in Standards-2022]:
- Exception 1: No requirement for a PV system if the ADU’s Solar Access Roof Area is less than 80 contiguous square feet.
- Exception 2: No PV system needed when the minimum ADU PV system is less than 1.8 kWdc.
- Exception 3: Exemption if the ADU’s roof bears excessive snow loads.
- Exception 4: ADUs approved by the local planning department before January 1, 2020.
- Exception to Electric Water Heater [New in Standards-2022]:
- Electric instantaneous water heaters with point-of-use distribution are permitted in new dwelling units, including ADUs, with up to 500 square feet of conditioned floor area.
Examples of Newly Constructed ADUs:
- A completely new building, separate from the existing home.
- A new ADU that connects to the existing home via a breezeway or covered walkway.
Explore Additional ADU Scenarios:
These guidelines define the specific Title 24 compliance requirements for newly constructed ADUs, ensuring energy efficiency and providing flexibility for various project types.
ADUs, Junior ADUs, and all other secondary units are required to comply with the Energy Code.
This involves submitting Energy Calculations and Title 24 forms along with your building permit applications to the relevant enforcement agencies.
