We built the application in short iterations where we asked feedback from the first (test) users early and often. Before the final release of the application, we set up a pilot with an extended group of users. This allowed us to understand the needs and wishes of the target group even better, making the tool as intuitive as possible.
During the entire process, special attention was paid to scalability and ease of use. After all, not all real estate buyers are digital natives, the application must also be attractive for that group.