Welcome to the City of Patterson! Thank you for your interest in holding a special event in our City. From sporting events to community-based festivals and parades, the City of Patterson is proud to host numerous events every year. A completed special event permit application may be filed as early as one year before the event, but no later than 60 days prior to the event date. A $100 non-refundable processing/application fee must be paid upon submission of your completed application. Keep in mind we are here to assist you in completing all of the City's requirements so you may have a successful event!