My pleasure Eugene and I can offer one possible explanation. The house on Atherton shows being listed and sold by the builder. It hasnt recorded yet in the tax records and frequently builder sales do not.
Here is one possible scenario. In LC Oaks I heard that Davidson did not pay their sales people the bonuses they were due but rather gave them below market deals on the models. Perhaps those sales were along similar lines I.e. a low price was given to an employee or vendor in lieu of some payment due). Things like that happen.