Trevor Petrie Real Estate Pty Ltd Trevor Petrie Real Estate Pty. Ltd. is located at 621 Sturt Street, Ballarat. A real estate office in Ballarat since 1988. With parking at the front door, the position in the main street is ideal for vendors, purchasers, landlords and tenants alike. A modern office, with a wonderful bright, effective window display. As a vendor or landlord your property is displayed 24 hours a day. Feel welcome to call into our office at anytime.