Context for that: Zillow is not the original owner of the data. The data is owned by the several hundred regional MLS’s (note the watermarks in any picture you

Context for that: Zillow is not the original owner of the data. The data is owned by the several hundred regional MLS’s (note the watermarks in any picture you see on the site). Data use agreements with those organizations require that anyone using it make efforts to prevent its being scraped. Source: have signed a DUA with an MLS myself for academic research.