California Green Building Standards Code (Title 24, Part 11) — establishes minimum environmental standards for new construction including water conservation, indoor air quality, and material use.
Often cited alongside Title 24 in ADU plan check. Less stringent than Title 24 but adds requirements for low-flow fixtures, low-VOC paints, and construction-waste recycling plans.
Part of the BackyardADU California ADU Glossary — plain-English definitions of the regulatory, construction, and financing terms you'll encounter during a California ADU project.