Title 24 regulates minimum energy efficiency for new construction in California. For example, these standards dictate how much insulation is required and the types of light fixtures that can be used. All new ADUs will need to demonstrate compliance with Title 24, which usually requires hiring a consultant and typically costs less than $500. For a detailed blog post on Title 24 read here. In some cases, like newly constructed freestanding ADUs, you might need to add solar panels to meet the rules. For a list of Title 24 consultants, check out our Vendor Registry.
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