H.R. No. 400 is a resolution commemorating the 100th anniversary of the incorporation of University Park, Texas, which took place on April 12, 1924. The city, located just north of downtown Dallas, began as a residential area for the staff and teachers of Southern Methodist University (SMU), which was established in 1911. As the community grew, it became necessary for University Park to incorporate due to the increasing population and the inability of SMU to provide essential services. Over the years, University Park has developed into a desirable neighborhood with over 25,000 residents, known for its affluent status, beautiful parks, and educational achievements.

The resolution expresses the Texas House of Representatives' recognition of University Park's contributions to the state and extends best wishes to its residents for the future. It highlights the community's pride in its rich history and ongoing development. An official copy of the resolution will be prepared for the city as a token of esteem from the Texas House. The resolution was adopted on March 13, 2025, by a non-record vote.