How far in advance do I need to apply for various permits?
Mechanical, electrical and plumbing permits require two working days lead time. Building permits require seven to ten working days lead time for plan review in order to verify that the proposed project is designed in compliance with the code. When applying for a building permit two copies of detailed plans must be submitted which clearly indicate what work is to be done. When applying for permits to do construction work on multi-family, commercial or industrial buildings, all construction drawings must bear the original seal and signature of an architect or engineer registered in the state of Missouri. Also, two copies of a site plan are required, drawn to scale, showing distances from the closest point of the new structure to all property lines and to all other structures on the property.

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1. Why do I need a permit?
2. When do I need a permit?
3. How far in advance do I need to apply for various permits?