A building permit approvals often come from a plan check engineer working at the Building Department in the specific city or county jurisdiction that governs a given property. Other formal approvals may come separately and directly from the staff of other agencies having separate or shared jurisdiction over the property. These agencies may include: Planning and Zoning, Street and Public Access, Special Use or Development Zones, Coastal Zones, Hillside or Special Demography Districts, Fire and Safety, Handicap Access Regulators, Energy Code Compliance, etc.
The technical requirements generally follow regulations of either the Uniform Building Code or the City's custom building code.
Prior to obtaining building permit approval, it is also often necessary to obtain other approvals on which the building permit ultimately depends. These may include planning and zoning, fire department, etc. Therefore, applying for a building permit is not always the place to begin. Appropriate research and analysis is important in order to incorporate all aspects of the building permit approval process in the proper sequence.