A building permit is valid for 365 days after it is issued.
Once a permit has expired you may be required to begin the permit process from the beginning, possibly update plans to current code requirements and pay the applicable fees again. The request and affidavit are then sent to the architect, engineer, and owner. Upon receipt of a signed authorization from the architect, engineer, and owner the plans may be duplicated. If no response is received in 30 days, the plans may be duplicated.