While zoning deals with your property and the relationship of your building to the neighborhood, building codes deal with the building itself. These codes establish, by law, the minimum acceptable standards for construction, electrical, plumbing, and mechanical systems. They are designed to safeguard health and safety in every building.
Your local, professional building inspection staff will be happy to explain any code item that you may not understand.
1994 ICBO Uniform Building Code (UBC)
1994 ICBO Uniform Mechanical Code (UMC)
1994 ICBO Uniform Plumbing Code (UPC)
1995 National Electric Code (NEC)
California Administrative Code (Title 24)