Media outlets speculate that the building could fetch the company around $2.9 billion Japanese advertising group Dentsu is reportedly considering selling its Tokyo headquarters, which media outlets say is worth $2.9 billion. Reports say that the 48-story HQ in Shidome may be sold by the company with plans to rent back half of its space. It currently occupies 70% of the building's space. Read more news about (internet advertising India, internet advertising, advertising India, digital advertising India, media advertising India)