Business Zillow and Trulia hit with antitrust suit claiming they’ve made it harder to find some listings Portland, OR, USA - Mar 7, 2021: A man searches for a single family home in the Bay Area from the Zillow website on his laptop at home. The U.S. is seeing the greatest housing price surge since 2006. by: By Anna Bahney, CNN Posted: Mar 10, 2021 / 06:52 PM EST (CNN) — A seemingly small change to Zillow and Trulia’s websites in January has changed the way homebuyers see available homes for sale. And that has a smaller player in the industry suing the real estate giants, along with the National Association of Realtors, for antitrust practices.