The Liberty Mutual Regional Office building is a 1.1 million sq. ft. building located at the corner of State Highway 121 and the North Dallas Tollway in the vibrant Legacy West development. At a height of nearly 300 feet, the Liberty Mutual Building was the tallest office building in Plano, Texas at the time. Designed by architect Omniplan, the space created a community-centered workplace that brought together the employees. Masterplan was brought in to handle the signage in regard to local ordinances. The signage ordinance allowed a specific size sign on each side of the building. Masterplan worked to alter the rules to add the allowed size for the east and west sides of the building to the north and south sides permitting two larger signs on the north and south facing sides.