Reach out: Engage and be included. 03 377 6294 info@horizonstrust.org.nz 08:30am – 04:30pm Administration Office and Activity Centre 1: 10 Birmingham Drive, Middleton, Christchurch 8024. Activity Centre 2: 3/20 Birmingham Drive, Middleton, Christchurch 8024. Postal Address: PO Box 42103, Christchurch 8149