Permits from LADBS are required for most structural, electrical, and plumbing work. CalBuild Remodeling Title 24 (2025 Energy Code) applies to projects filed on or after Jan 1, 2026. California Energy Commission Typical remodel timeline is 6–16 weeks  including plan check. CalBuild Remodeling Internal links: California Construction services & projects. Why Remodel in January 2026 New Title 24 energy requirements take effect now, and planning early means fewer redesigns during