Zillow is pretty bad with estimating older areas with drastically different construction quality, views, and lot sizes. I also noticed they will increase a place by 25% in a year and say it went up 5%. Which is OK if they are just saying their old estimates were wrong, but this happens a lot.
They also seem to invariably have a really pessimistic 1 year price projection. During a boom with annual increases of 7% and more, the projection was always 3% to -1%, even when inventory was very low.
I give them credit for still being better than redfin. But it’s also disappointing that Zillow doesn’t seem to be any more accurate than it was 10 years ago. Appraisals are perfect for big data AI.