Celebrating downtown Belleville Belleville, ON, Canada / Quinte News Amanda Smith October 16, 2018 02:46 pm Belleville Downtown Improvement Area office. (Quinte News File Photo: David Foot.) The City of Belleville is celebrating the completion of the downtown core on Thursday evening. The celebration will begin at 5 p.m. on Front Street, south of Bridge Street. There will be food, fun and entertainment provided by The Fiddleheads.