Tours Sisters is the name of a skyscraper project located in Courbevoie in the business district of La Défense, consisting of a 229-metre (751 ft) office tower and a hotel 131 metres (430 ft) high connected by a walkway. Construction should begin in 2023, with completion scheduled for 2025. This new project, developed by Unibail-Rodamco and whose architect is Christian de Portzamparc, replaces that of the Phare Tower.