A building permit package is the document set a jurisdiction reviews before issuing approval to build. It is not a marketing plan set and it is not a single drawing: it is a coordinated package in which the site plan, floor plans, elevations, sections, structural information, and code summary all describe the same project the same way. When one sheet disagrees with another, a reviewer cannot approve the set, and the project moves to the correction cycle instead of the issuance queue.
The scope of the package follows the scope of the work. A bathroom remodel in an existing single-family home may need only measured existing conditions, a proposed floor plan, and a code summary. A second-story addition typically adds exterior elevations, a framing plan, a height and setback analysis, and a structural design sealed by an engineer licensed in that state. A detached accessory dwelling unit often requires the fullest set of all, because it introduces a new structure, new utilities, and its own occupancy classification.
Local requirements sit on top of those basics. Two cities may review the same addition and ask for different energy compliance forms, different grading notes, or a different level of detail on the site plan. Some departments require a sealed survey when setbacks are tight; others accept an assessor's parcel map with dimensions. This is why a package assembled for one address is rarely transferable to another, and why the first step in our process is confirming the checklist with the specific reviewing department.
Preparation matters as much as drafting. Properties with clear prior drawings, a recent survey, and photographs of existing conditions move through production faster, because the drawing team is measuring and documenting rather than reconstructing. Projects that arrive without any record of the existing building need field measurements before a single new line is drawn.
