yet been released by their developers. Timeline of tallest buildings This list shows chronologically the buildings that held the title of tallest building in Fort Worth. See also List of tallest buildings in Texas List of tallest buildings in Dallas List of tallest buildings in Houston Notes A. According to the Council on Tall Buildings and Urban Habitat, freestanding observation towers are not considered buildings, as they are not fully habitable structures. This structure is included for comparative purposes. References Fort Worth Fort Worth