I am familiar with both areas and you are correct, there really is no comparison. The Avalon homes were mostly built by one builder. Olive Park North had a diversity of custom and semi-custom builders. There was also a vast difference in the original sales prices of these two areas because of the quality of construction, the features, the size of the lots, price of the land, etc. Most realtors who were in real estate when these homes were constructed and sold know the differences betyween these NW Bakersfield neighborhoods. It is still easy to seel the differences when you drive through these two developed neighborhoods. When I do a Comparative Market Analysis I always take these things into consideration and compare "apples to apples". My nephew lived on Irwindale in an awesome home. Great area. Zillow and Trulia just go by location, age, size. etc. In other words--they go from the statistics. They have no way of knowing the difference between Oliver Park North and The Avalon tract. Hope this helps.