Energy calculations for additions and major alterations to existing California homes — scoped to what your project actually touches.
Compliance is typically scoped to the addition or the systems your remodel directly touches, not the entire existing home.
What's already in place — insulation, windows, HVAC — factors into what the new work needs to meet.
When a project scope shifts mid-design, the compliance approach can adapt without restarting the whole calculation.
A correctly scoped report the first time keeps your building department review on schedule.
Additions and major alterations
Per revision as needed
Includes state registration and CHEERS fees — no hidden costs. First round of plan-check corrections is free.
Send us your plans — we'll tell you which compliance pathway fits, free.
Free Plan ReviewIf the project touches the building envelope, HVAC, or water heating — which most additions and major remodels do — your building department will require a Title 24 compliance report for permit approval.
Standard turnaround is 2–3 business days from receiving complete plans. Expedited 1–2 day service is available for an additional fee.
Usually just the altered area and any directly affected systems, not the whole existing home — the exact scope depends on your project, which we'll confirm from your plans.