Title 24 guides
What California's residential Energy Code asks of an ADU or a new home, and what the building department will want to see.
Title 24 energy compliance for ADUs
What California's Energy Code asks of a new ADU, how the ADU type decides the rules, and what you need before you apply for a permit.
What is a CF1R? The Title 24 Certificate of Compliance
The CF1R is the energy compliance document you file with a California residential permit. Here's what it contains, who signs it and what comes after it.
Prescriptive vs. performance: the two ways to comply with Title 24
California's residential Energy Code offers a checklist path and a modeling path. How they differ and when each one makes sense.
California's 16 building climate zones, explained
Title 24 splits California into 16 building climate zones. What they are, why they matter for your project and how to find yours.