Building a property marketplace like Zillow without hiring a developer can be done using no-code tools such as Bubble, which allows users to create powerful software through visual interfaces. The process starts with registering for a free account, followed by designing the user interface and database structure using Bubble's visual design tool and database builder. Key features include creating a portal for uploading property listings, searching for properties based on neighborhoods, sending data between pages, and building workflows to stitch everything together. With these features in place, users can start building their own no-code property marketplace, including submitting property listings, searching for properties, displaying relevant content, and adding additional features such as filtering by price range or allowing users to save properties to their personal list.