New homes in Climate Zone 7 must meet the full Title 24 energy standards, including the statewide solar PV requirement that applies to most new low-rise residential construction.
What new construction must address
- Full building envelope and air sealing
- High-efficiency HVAC and water heating
- Lighting controls
- Solar photovoltaic (PV) system for most new low-rise homes
Title 24 is a statewide California energy code. Climate Zone 7 does not have its own separate rules — the same statewide standards apply, with the energy budget calibrated to this zone's climate. Your project's exact requirements are determined when your specific address is modeled in CEC-approved compliance software. The required PV size and the compliant design path are calculated from your address and plans.
Related: residential Title 24 service.