Barr and Standley was established in 1970. Today it is one of regional Western Australia's most successful and respected real estate agencies. Family owned and operated, the company enjoys an enviable brand positioning and awareness that makes the decision to buy or sell your property with B&S not only a simple one, but a sensible one. Barr and Standley. Built on Strength. Sold on Service. A real estate appraisal helps to establish your property's market value. The market value is the estimated sales price the property would bring if offered for sale on the open market.