One Za’abeel completes topping out of Towers A and B: Ithra Dubai One Za’abeel will redefine the mixed-use offering in Dubai. One Za’abeel will redefine the mixed-use offering in Dubai and the region owing to its innovative approach in architecture, engineering and design. Ithra Dubai, the leading real estate developer wholly owned by the Investment Corporation of Dubai, announced the topping out of the structure of Tower A and Tower B at the One Za’abeel on Wednesday. The momentous achievement, also marked by Tower A reaching its ultimate structural point and the completion of One Za’abeel’s structural phase, was celebrated during an exclusive ceremony attended by Issam Galadari, director and CEO of Ithra Dubai, and Raad Jarrah, chief development officer.