Land Registry Office Contact Info Phone: 519-337-2393 Fax: 519-337-8370 Location 700 Christina Street North Sarnia, ON N7V 3C2 View Map Online www.serviceontario.ca Mailing Address: 700 Christina Street North, ON, Key Contact: Jane Stevenson NAICS Code: 91291 - Other provincial and territorial public administration Site Selector Map: View location