Most LA kitchens in 2026 need updated HVAC ventilation, sealed and insulated ducting, LED-compliant lighting, and upgraded controls to meet Title 24. Slab foundations limit routing, and high-performance hoods require makeup air for larger BTU ranges. Plan early for mechanical permits and compliance testing.

Average LA‑area bathroom remodels cost $32k–$85k in 2025. Single‑family homes often qualify for Express Permit, but moving plumbing or expanding footprint triggers Plan Check. Title 24 lighting and ventilation standards apply everywhere.