In most cases, yes — converting a garage to an ADU or habitable living space in California requires a Title 24 energy compliance report. Because the conversion creates new conditioned living space, it triggers energy compliance requirements under Title 24 Part 6.
The report covers how the converted space meets insulation requirements, window performance standards, and HVAC efficiency. These elements are almost always upgraded during a garage conversion since garages are typically uninsulated and unconditioned by design.
Does every garage conversion require one?
Requirements vary by jurisdiction and by how much of the existing structure is being altered. Some jurisdictions have specific allowances under ADU streamlining laws, but a Title 24 energy compliance report is required in the vast majority of garage-to-ADU conversion projects.
If you are unsure whether your specific project requires one, contact your local building department — or reach out to us and we can help you understand what is typically required for your area. Title24Comply handles garage conversion reports starting at $199, with standard 2–3 business day turnaround and rush options available.