What the 2025 Energy Code changed, and who it catches out
Effective January 1, 2026. Heat pumps in the baseline, expanded electric-readiness, stronger ventilation — and the date rule that decides which cycle you are on.
Read the guide →Title 24 guides
Plain explanations of the parts of California energy code that cause the most expensive mistakes — written to be useful whether or not you ever hire us.
CF1R, CF2R and CF3R: the compliance chain explained
Three documents, three parties, three stages. Miss any one and the project does not receive final sign-off.
Read the guide →California's 16 climate zones and why yours decides everything
Zones are assigned by ZIP code, not by city — and getting it wrong is one of the most common causes of a rejected energy report.
Read the guide →Why Title 24 reports get rejected at plan check
Five causes account for most rejections, and all five are avoidable before you submit.
Read the guide →Need a permit-ready report this week?
Same-day reports available. Send the plans, tell us the deadline, and we will work to it.