Many sellers price their home based on the sell price of a similar property down the road.
They may see the property down the road sell for $xyz and say “Mine is better than that“ or their best friend says “You could get $xyz for this.”
Agents have so much data available to them from websites such as RP Data and Pricefinder and now realestate.com.au plus others. All are powerful tools for agents to use to assess the current market and price ranges for property, virtually anywhere either statewide or interstate if they need to.
There is absolutely no excuse for an Agent not to give you a selling range in 99% of cases. However there could be two exceptions:
Sellers, you can do your own research to determine the selling range as well. See how at the end of this article.