Organization and Description of Business	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Organization and Description of Business	Organization and Description of Business Zillow Group is reimagining real estate to make home a reality for more and more people. As the most visited real estate app and website in the United States, Zillow and its affiliates help people find and get the home they want by connecting them with digital solutions, dedicated real estate professionals, and easier buying, selling, financing and renting experiences. Our portfolio of affiliates, subsidiaries and brands includes Zillow Premier Agent, Zillow Home Loans, our mortgage origination operations and affiliate lender, Zillow Rentals, Trulia, StreetEasy, HotPads and Out East. In addition, Zillow Group provides a comprehensive suite of marketing software and technology solutions for the real estate industry, including ShowingTime+, Spruce and Follow Up Boss. Certain Significant Risks and Uncertainties We operate in a dynamic industry and, accordingly, can be affected by a variety of factors, which are uncertain and difficult to predict. For example, we believe that potential changes in any of the following areas may have a significant impact on us in terms of our future financial position, results of operations or cash flows: the health and stability of the economy and United States residential real estate industry, including changes in inflationary conditions, interest rates, housing availability and affordability, labor shortages and supply chain issues; our ability to navigate industry changes, including as a result of past, pending or future lawsuits, settlements or government investigations; uncertainties related to policy changes or enforcement priorities at the federal and state levels; our ability to manage advertising, product inventory and pricing, and to maintain relationships with our real estate partners; our ability to comply with current and future rules and requirements promulgated by NAR, MLSs, or other real estate industry groups or governing bodies, and to maintain or establish relationships with listing and data providers; changes to our rights to use or timely access listing data, or to the quality or quantity of such listing data; our investment of resources to pursue strategies and develop new products and services that may not prove effective or that are not attractive for customers and real estate partners or that do not allow us to compete successfully; our ability to operate and grow the mortgage operations of Zillow Home Loans, our affiliate lender, including the ability to obtain or maintain sufficient financing and resell originated mortgages on the secondary market; the duration and impact of natural disasters, climate change, geopolitical events, and other catastrophic events (including public health crises) on our ability to operate, demand for our products or services or general economic conditions; outcomes of legal proceedings and government investigations; our ability to attract, engage, and retain a highly skilled workforce; protection of Zillow Group’s information and systems against security breaches or disruptions in operations; reliance on third-party services to support critical functions of our business; protection of our brand and intellectual property; and changes in laws or government regulation affecting our business, among other things.

Organization and Description of Business

Zillow Group is reimagining real estate to make home a reality for more and more people. As the most visited real estate app and website in the United States, Zillow and its affiliates help people find and get the home they want by connecting them with digital solutions, dedicated real estate professionals, and easier buying, selling, financing and renting experiences.

Our portfolio of affiliates, subsidiaries and brands includes Zillow Premier Agent, Zillow Home Loans, our mortgage origination operations and affiliate lender, Zillow Rentals, Trulia, StreetEasy, HotPads and Out East. In addition, Zillow Group provides a comprehensive suite of marketing software and technology solutions for the real estate industry, including ShowingTime+, Spruce and Follow Up Boss.

Certain Significant Risks and Uncertainties

We operate in a dynamic industry and, accordingly, can be affected by a variety of factors, which are uncertain and difficult to predict. For example, we believe that potential changes in any of the following areas may have a significant impact on us in terms of our future financial position, results of operations or cash flows: the health and stability of the economy and United States residential real estate industry, including changes in inflationary conditions, interest rates, housing availability and affordability, labor shortages and supply chain issues; our ability to navigate industry changes, including as a result of past, pending or future lawsuits, settlements or government investigations; uncertainties related to policy changes or enforcement priorities at the federal and state levels; our ability to manage advertising, product inventory and pricing, and to maintain relationships with our real estate partners; our ability to comply with current and future rules and requirements promulgated by NAR, MLSs, or other real estate industry groups or governing bodies, and to maintain or establish relationships with listing and data providers; changes to our rights to use or timely access listing data, or to the quality or quantity of such listing data; our investment of resources to pursue strategies and develop new products and services that may not prove effective or that are not attractive for customers and real estate partners or that do not allow us to compete successfully; our ability to operate and grow the mortgage operations of Zillow Home Loans, our affiliate lender, including the ability to obtain or maintain sufficient financing and resell originated mortgages on the secondary market; the duration and impact of natural disasters, climate change, geopolitical events, and other catastrophic events (including public health crises) on our ability to operate, demand for our products or services or general economic conditions; outcomes of legal proceedings and government investigations; our ability to attract, engage, and retain a highly skilled workforce; protection of Zillow Group’s information and systems against security breaches or disruptions in operations; reliance on third-party services to support critical functions of our business; protection of our brand and intellectual property; and changes in laws or government regulation affecting our business, among other things.