Is Redfin "last list price" the same as final sale price?

[Kat Hussey]

Hello!

I'm trying to run my own comps on a property I want to purchase from a family friend. However, I'm not a realtor, so I'm using Redfin/Zillow/etc. to pull these comps. It always says the number shown is the "last list price," but does that mean it sold for that price? I'm in Texas. If this isn't the sale price, is it likely that the actual sale price is reflected on the county appraisal site? Would I be required to double-check the "last list" vs. the sale price on the CAD site to be sure that my numbers are accurate? When I purchased my personal home, the taxes that year were raised to the purchase price, but I'm not sure if that was because there's been a TON of development in my specific area and that they have been keeping close tabs on sale prices.

Thank you for all your help!